2024-03-29T05:45:18Z
https://jurnal.ugm.ac.id/index/oai
oai:jurnal.ugm.ac.id:article/1543
2020-10-13T03:58:41Z
jip:ART
nmb a2200000Iu 4500
"201013 2020 eng "
2527-7162
0126-4214
dc
Penggunaan Biji Aren (Arenga pinnata (Wurmb.) Merr.) dari Berbagai Warna Buah
Widyawati, Tohari, Prapto Yudono, Issirep Soemardi, Nugraheni
Hingga kini diyakini bahwa benih aren berasal dari buah kuning telah mencapai kemasakan fisiologis. Ada kemungkinan bahwa kemasakan fisiologis benih aren tercapai sebelum buah berubah menjadi kuning. Penelitian ini bertujuan untuk mengkaji keeratan hubungan antara warna buah dengan daya kecambah dan vigor biji aren dan untuk menentukan biji aren memiliki daya kecambah dan vigor tinggi.
Penelitian disusun menggunakan Rancangan Acak Kelompok Lengkap, terdiri dari 5 variasi warna buah yaitu hijau, hijau cerah, hijau kekuningan, kuning kehijauan dan kuning, masing-masing diulang 5 kali. Hasil penelitian ini menunjukkan bahwa warna buah berhubungan erat dengan perkecambahan dan vigor; daya kecambah tertinggi terjadi ketika buah berwarna hijau kekuningan hingga kuning.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-10-13 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/1543
Ilmu Pertanian (Agricultural Science); Vol 15, No 1 (2008): Juni
eng
Copyright (c) 2020 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/1544
2020-10-13T03:58:42Z
jip:ART
nmb a2200000Iu 4500
"201013 2020 eng "
2527-7162
0126-4214
dc
Karakteristik Perakaran Tanaman Padi Sawah IR 64 (Oryza sativa, L) pada Umur Bibit dan Jarak Tanam yang Berbeda
Kurniasih, Siti Fatimah, Dwi Ari Purnawati, Budiastuti
The research aimed to observe rooting characteristic of IR 64 wetland rice grown in different seedling age and crop spacing, in relation to the growth and yield of rice. The experiment was conducted on farmer’s field at Gadingan, Ngluwar, Magelang district from December 2007 to March 2008. The experiment was arranged using 3 x 3 factorial Randomized Completely Block Design (RCBD) with three replications. The first factor was seedling ages which consisted of 3 levels, namely 7 days (U1), 14 days (U2) and 21 days (U3). The second factor was three levels crop spacings, i.e: 10 cm x 10 cm (J1), 20 cm x 20 cm (J2) and 30 cm x 30 cm.
The results showed that the difference of seedling age and crop spacing formed different rooting characteristics. The wider crop spacing, the more intensive rooting feature would be. Root volume, total root length and root dry weight of (30x30)cm2 were higher than (10x10)cm2 and (20x20)cm2 crop spacing. There were significant positive correlations between root variables and rice yield per hill. Although the younger seedling reduced date of flowering as well as harvesting age, both seedling age and crop spacing did not affect total rice yield.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-10-13 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/1544
Ilmu Pertanian (Agricultural Science); Vol 15, No 1 (2008): Juni
eng
Copyright (c) 2020 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/1545
2020-10-13T03:58:42Z
jip:ART
nmb a2200000Iu 4500
"201013 2020 eng "
2527-7162
0126-4214
dc
Kajian Infeksi Xanthomonas oryzae pv oryzae Terhadap Beberapa Genotipe Padi : Hubungan Kandungan Hara dengan Intensitas Penyakit
Suryadi dan T. S. Kadir, Y.
Penelitian ini bertujuan untuk menguji tanggap beberapa materi genotipe/varietas padi di lapangan terhadap penyakit hawar daun bakteri (HDB) serta kaitannya dengan kadar nutrisi yang dianalisis setelah proses infeksi terjadi. Daun yang terinfeksi HDB menunjukkan kadar hara N dan P yang relatif tidak jauh berbeda; tetapi kandungan K dan protein terutama pada genotipe IR BB5 (xa-5) dan IR BB7 (Xa-7) sedikit lebih tinggi dibanding varietas lainnya. Cisadane yang menunjukan keparahan HDB paling rendah mempunyai kandungan N, P, K dan protein terkecil. Kandungan gula tanaman padi yang diuji bervariasi dengan kisaran 0,29% sampai 1,33%; masing-masing dengan kadar gula reduksi (GR) tertinggi pada genotipe/varietas Cisadane dan terendah pada varietas IR 64. Kandungan gula dalam tanaman padi tampaknya mempengaruhi ketahanan terhadap infeksi HDB. Umumnya makin tinggi kadar gula tanaman padi semakin menunjukkan keparahan HDB yang rendah dan sebaliknya. Demikian pula semakin tinggi nisbah GR/N akan semakin mengurangi kejadian HDB maupun keparahan HDB pada padi. Berdasarkan hasil monitoring ras dominan Xanthomonas oryzae pv oryzae (XOO) yang ada di lokasi percobaan baik terhadap kejadian maupun keparahan penyakit HDB dapat disimpulkan bahwa ras yang menginfeksi padi di lokasi Ciranjang-Cianjur pada MH 2007 adalah kelompok ras IV karena tidak satupun dari varietas diferensial yang diuji bereaksi tahan terhadap patogen XOO; yang ditunjukkan dengan kisaran keparahan penyakit HDB dari 20,3% sampai 83,3%.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-10-13 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/1545
Ilmu Pertanian (Agricultural Science); Vol 15, No 1 (2008): Juni
eng
Copyright (c) 2020 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/1546
2020-10-13T03:58:42Z
jip:ART
nmb a2200000Iu 4500
"201013 2020 eng "
2527-7162
0126-4214
dc
Produktivitas Kelapa Sawit (Elaeis guineensis Jacq.) yang Dipupuk dengan Tandan Kosong dan Limbah Cair Pabrik Kelapa Sawit
Prayitno, Didik Indradewa, dan Bambang Hendro Sunarminto, Sapto
Penelitian ini bertujuan untuk mengetahui pengaruh pemupukan tandan kosong kelapa sawit (TKKS) dan limbah cair pabrik kelapa sawit (LCPKS) terhadap tanah, pertumbuhan vegetatif tanaman, produktivitas tanaman dan mengetahui jenis limbah pabrik kelapa sawit yang paling baik. Penelitian lapangan dilaksanakan mulai bulan Oktober-Desember 2007. Lokasi penelitian dilakukan di PT. Perkebunan Nusantara VII (Persero) unit usaha Rejosari, Natar, Lampung Selatan.
Penelitian ini menggunakan kelapa sawit tanaman menghasilkan (TM) 23 yang sudah diberi perlakuan: (1) Pemberian limbah padat tandan kosong sejak tahun 1998 yang diberikan setahun sekali dengan dosis 20 ton/Ha. (2) Pemberian limbah cair kelapa sawit sejak tahun 1998 yang diberikan setiap hari dengan dosis 4,25 m3/ha/hari. (3) Pemupukan anorganik saja tanpa penambahan limbah pengolahan kelapa sawit dengan dosis 2,75 kg/pohon Urea, 2,25 kg/pohon TSP, 2,25 kg/pohon MOP, 3,75 kg/pohon Dolomit per tahun aplikasi (Rekomendasi Pemupukan PTPN VII Unit Usaha Rejosari tahun 2007). Masing-masing perlakuan diulang delapan kali dan terdapat 10 tanaman sebagai sub sample pada setiap ulangan, memanfaatkan hamparan pertanaman kelapa sawit TM 23.
Dari hasil penelitian ini dapat diambil kesimpulan sebagai berikut: (1) Aplikasi limbah pabrik kelapa sawit (PKS) dapat meningkatkan kualitas sifat fisik, kimia dan biologi tanah dan pertumbuhan sehingga produktivitas tanaman juga meningkat. (2) Penggunaan limbah cair kelapa sawit meningkatkan jumlah tandan sebesar 54,89 %, rerata berat tandan sebesar 8,9 % dan produktivitas sebesar 70,62 %. (3) Pemanfaatan tandan kosong kelapa sawit meningkatkan jumlah tandan 18,6 %, rerata berat tandan 4,3 % dan produktivitas sebesar 25,03 %.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-10-13 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/1546
Ilmu Pertanian (Agricultural Science); Vol 15, No 1 (2008): Juni
eng
Copyright (c) 2020 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/1547
2020-10-13T03:58:43Z
jip:ART
nmb a2200000Iu 4500
"201013 2020 eng "
2527-7162
0126-4214
dc
Keragaan Beberapa Varietas Padi (Oryza spp) pada Kondisi Cekaman Kekeringan dan Salinitas
Taryono, dan Toekidjo, Kurniasih,
Penelitian ini bertujuan untuk mengetahui keragaan pertumbuhan dan kemampuan berproduksi lima varietas tanaman padi yang ditanam pada kondisi cekaman kekeringan dan salinitas. Penelitian dilaksanakan di rumah kaca kebun percobaan Tri Dharma Fakultas Pertanian UGM.
Penelitian terdiri atas tiga faktor yang disusun dalam Rancangan Acak Lengkap dengan tiga ulangan untuk uji lapangan dan empat ulangan untuk uji perkecambahan. Lima varietas padi, yaitu L. Kuning, L. Tesan, Ramos, Anak Daro dan Lumbuk sebagai faktor pertama. Kadar garam 0 mM, 100 mM, 200 mM dan 300 mM sebagai faktor kedua dan faktor ketiga adalah frekuensi penyiraman, yaitu dua, empat dan enam hari sekali. Pada uji perkecambahan faktor ketiga adalah konsentrasi PEG, yaitu 0 %, 20 % dan 40 %.
Hasil penelitian menunjukkan bahwa tidak terdapat interaksi yang nyata antara ketiga faktor. Terdapat interaksi yang nyata antara varietas dengan kadar garam pada sifat panjang akar utama, berat kering akar, berat kering tajuk, rasio akar tajuk dan tinggi tanaman. Terdapat interaksi nyata antara varietas dengan frekuensi penyiraman pada sifat jumlah malai, rasio akar tajuk dan jumlah anakan. Terdapat beda nyata antar varietas pada sifat tinggi tanaman, panjang akar utama, jumlah malai, panjang malai, berat kering akar, berat kering tajuk, rasio akar tajuk, jumlah anakan, berat 100 biji, dan umur berbunga. Dari kelima varietas yang digunakan, varietas yang cenderung tahan dari cekaman kekeringan dan garam adalah varietas Anak Daro karena memiliki nilai terbaik pada sifat panjang akar utama, berat kering akar, jumlah anakan, berat kering akar, berat kering tanaman, rasio akar tajuk dan mempunyai umur tanaman mati paling lama.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-10-13 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/1547
Ilmu Pertanian (Agricultural Science); Vol 15, No 1 (2008): Juni
eng
Copyright (c) 2020 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/1548
2020-10-13T03:58:43Z
jip:ART
nmb a2200000Iu 4500
"201013 2020 eng "
2527-7162
0126-4214
dc
Kombinasi Pupuk Organik-NPK dalam Rotasi Tanaman Berbasis Padi untuk Peningkatan Sifat Kimia Tanah dan Hasil Padi
S. Padmini, Tohari, Djoko Prajitno, dan Abdul Syukur, Oktavia
Tujuan penelitian adalah memperbaiki sifat kimia tanah dan meningkatkan hasil padi dalam rotasi ranaman berbasis padi. Percobaan lapangan dilaksanakan di Kabupaten Sragen bulan Juli 2005 sampai Juli 2006. Percobaan musim tanam I menggunakan perlakuan faktor tunggal, yakni macam residu tanaman yang disusun dalam RCBD terdiri atas 3 perlakuan, yaitu residu padi, kacang tanah dan kedelai. Percobaan tahap II dan III menggunakan rancangan petak terbagi yang disusun dalam RCBD, diulang 3 kali. Petak utama adalah residu tanaman, berasal dari pengembalian sisa hasil tanaman percobaan musim tanam I. Anak petak adalah pupuk organik merupakan percobaan musim tanam II dan III, terdiri atas 7 aras yaitu pupuk organik + NPK dosis rekomendasi, pupuk organik + NPK dosis optimum, pupuk organik + NPK dosis petani, NPK dosis rekomendasi, NPK dosis optimum, NPK dosis petani dan tanpa pupuk.
Hasil penelitian menunjukkan bahwa kadar bahan organik, N-total dan K-tertukar pada ketiga macam rotasi tanaman tidak berbeda nyata. Kadar P-tersedia pada rotasi tanaman padi-padi-padi baik dengan maupun tanpa pupuk organik nyata lebih tinggi dibandingkan dengan legum-padi-padi. Produktivitas padi pada rotasi tanaman legum-padi-padi nyata lebih tinggi dibandingkan dengan rotasi tanaman padi-padi-padi. Pupuk organik mampu mensubtitusi pupuk NPK sebesar 30%.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-10-13 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/1548
Ilmu Pertanian (Agricultural Science); Vol 15, No 1 (2008): Juni
eng
Copyright (c) 2020 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/1549
2020-10-13T03:58:44Z
jip:ART
nmb a2200000Iu 4500
"201013 2020 eng "
2527-7162
0126-4214
dc
Kajian Keragaman dan Heritabilitas Kandungan β-Karoten Progeni Kelapa Sawit (Elaeis guineensis Jacq.) Tipe Dura
Hayatun, Taryono, Supriyanta, Reza Indriadi, dan Tony Liwang, Nur
Peningkatan kandungan β-karoten pada CPO saat ini menjadi prioritas utama pemuliaan tanaman kelapa sawit. Pemuliaan dapat dilakukan terhadap populasi yang memiliki keragaman dan daya waris terhadap sifat kandungan β-karoten tinggi. Hal inilah yang mendasari dilaksanakannya penelitian dengan tujuan mengetahui keragaman, heritabilitas dan korelasi kandungan β-karoten dengan karakter komponen hasil Progeni kelapa sawit tipe dura di kebun induk PT. DMS. Penelitian dilaksanakan di kebun induk Dami Mas Seed Estate (DMSE) dan Laboratorium Analisis Tandan DMSE PT. DMS, Kampar, Riau, serta Laboratorium Kimia Organik Balai Penelitian SMARTRI Libo, PT. Smart. Tbk, Siak. Riau. Bahan tanam yang digunakan terdiri dari 11 progeni dura.
Hasil penelitian menunjukkan bahwa beberapa progeni kelapa sawit tipe dura di kebun induk PT. Dami Mas Sejahtera memiliki kandungan β-karoten relatif tinggi. Progeni 09 memiliki kandungan β-karoten tertinggi dengan keragaman dalam progeni sangat tinggi, sangat baik sebagai bahan pemuliaan. Kandungan β-karoten progeni kelapa sawit tipe dura mempunyai nilai koefisien variasi genetik (KVG) dan heritabilitas yang relatif tinggi. Koefisien Variasi Genetik berat tandan relatif agak tinggi, namun Koefisien Variasi Genetik persentase buah per tandan, berat buah, persentase mesokarp per buah, dan persentase minyak per mesokarp relatif rendah. Berat tandan, persentase buah per tandan, persentase mesokarp per buah memiliki nilai heritabilitas yang tinggi, namun berat buah dan persentase minyak per mesokarp heritabilitasnya rendah. Kandungan β-karoten berkorelasi negatif dengan berat buah.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-10-13 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/1549
Ilmu Pertanian (Agricultural Science); Vol 15, No 1 (2008): Juni
eng
Copyright (c) 2020 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/2511
2016-12-09T04:21:34Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Studi Ketahanan Melon (Cucumis melo L) Terhadap Layu Fusarium Secara In Vitro dan Kaitannya dengan Asam Salisilat
Sujatmiko, Endang Sulistyaningsih, dan Rudi Hari Murti, Bambang
INTISARI
Layu fusarium adalah penyakit utama melon yang disebabkan oleh Fusarium oxysporum f.sp. melonis (Fom). Pemuliaan tanaman secara in-vitro melalui variasi somaklonal telah digunakan selama beberapa dekade untuk perbaikan karakter ketahanan tanaman. Asam salisilat diketahui sebagai salah satu senyawa yang berperan penting terhadap ketahanan tanaman. Penelitian ini bertujuan untuk mendapatkan konsentrasi optimal dari asam fusarat yang dapat digunakan untuk tujuan skrining ketahanan layu fusarium secara in-vitro, mendapatkan tanaman tahan melalui seleksi in-vitro dan mengetahui hubungan kandungan asam salisilat dengan ketahanan tanaman melon terhadap layu fusarium. Kalus lima galur melon dipaparkan pada empat konsentrasi asam fusarat yaitu 0 ppm, 15 ppm, 30 ppm, dan 60 ppm. Hasil penelitian menunjukkan pertumbuhan kalus melon pada media dengan konsentrasi 0 dan 15 ppm tidak berbeda, penurunan pertumbuhan kalus mulai terlihat pada konsentrasi 30 ppm dan berlanjut pada konsentrasi 60 ppm. Galur paling tahan adalah galur M-21, sedangkan galur yang paling responsif saat regenerasi adalah galur M-13. Pertumbuhan kalus pada media seleksi dipengaruhi oleh genotipe masing-masing. Kalus yang mampu beregenerasi dan menghasilkan plantlet kemudian dinyatakan sebagai plantlet yang tahan pada tingkat in-vitro. Tanaman tahan memiliki kandungan asam salisilat alami (endogenous) lebih tinggi.
Kata kunci: Fusarium oxysporum f.sp. melonis, Cucumis melo L., asam fusarat, skrining in- vitro, asam salisilat, ketahanan.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2511
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2513
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Ekspresi Daya Hasil dan Beberapa Karakter Agronomi Enam Padi Hibrida Indica di Lahan Sawah Berpengairan Teknis
Sutaryo, Bambang
INTISARI
Penelitian untuk mengkaji ekspresi daya hasil dan beberapa karakter agronomi enam padi hibrida indica di lahan sawah berpengairan teknis yaitu : Bioibrd-1, Bioibrd-2, Bioibrd-3, Bioibrd-4, Bioibrd-5, Bioibrd-6, dan empat varieties pembanding yaitu : Ciherang, Sintanur, Inpari 6 dan Inpari 14 dilaksanakan di Wirokerten, Banguntapan, Bantul dari bulan November 2012 hingga bulan Maret 2013. Percobaan dirancang sesuai dengan rancangan acak kelompok dengan empat ulangan. Bibit berumur 17 hari ditanam dengan satu bibit per lubang tanam pada petak berukuran 4 x 5 m2. Pemupukan pada pesemaian dilakukan tiga kali, sedangkan selama pertumbuhan dilakukan empat kali pemupukan. Data mengindikasikan bahwa Bioibrd-3, Bioibrd-1, dan Bioibrd-4, merupakan tiga padi hibrida terbaik berturut-turut menghasilkan gabah sebesar 8,6; 8,5; dan 8,3 t/ha, memberikan heterosis baku sebesar 14,67; 13,33; dan 10,67 % terhadap. varietas pembanding terbaik Inpari-14 (7,5 t/ha), dengan produktivitas per hari masing-masing sebesar 95,55; 91,89; dan 91,01 kg/ha/hari, dan persen di atas pembanding terbaik masing-masing sebesar 23,58; 18,84; dan 17,71%. Jumlah gabah isi per malai dari Bioibrd-3, Bioibrd-1, dan Bioibrd-4 berturut-turut sebanyak 250,5; 240,7; dan 231,0 butir. dan secara nyata lebih banyak bila dibandingkan dengan Inpari-14 (189,4 butir). Bioibrd-3, Bioibrd-1, dan Bioibrd-4, dengan bobot 1000-butir masing-masing 29,8; 28,2; dan 28,4 gram secara nyata lebih berat bila dibandingkan dengan secara nyata lebih berat bila dibandingkan dengan Inpari 14 (27,0 gram).
Key words : keragaan, karakter agronomi, enam padi hibrida, japonica, genotype, sawah berpengairan teknis
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2513
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2514
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
The Dynamics of Sesame (Sesamum indicum L.) Growth Type
Firmansyah, Firmansyah
Taryono, Taryono
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Yudono, Prapto
sesame; growth type; temperature, salinity
(Sesamum indicumL.) is one of important vegetableoil cropsin theworld. Indonesian local sesame cultivars in use today still have indeterminate growth types that cause simultaneous harvest, narrow adaptability and lower yield. Stage of the research is to see dynamics growth type of sesame due to environmental change and to find morphological and biochemical selection criteria of determinate growth cultivar. This study uses a factorial completely randomized design consisting of three replications. The first factor is six cultivars of sesame, two types of determinate growth type cultivar introduced from Turkey III Det 23, III Det 36 and four indeterminate growth type cultivars Sbr 3, Sbr 4, white local and black local. The second factor is six environments that combine various combinations of temperature and several concentrations of NaCl as salinity stress. The results showed that the environment combined heat stress temperature and salinity affect growth type of sesame. Heat stress makes longer vegetative phase and salinity stress causes black local genotype changed to determinate growth type. III det 23 and III det 36 were considered as stable determinate cultivar and best used as a parent crossing in sesame breeding program.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2514
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2515
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Pengaruh Perbedaan Benih Asal Pertanian Organik dan Konvensional Terhadap Sifat Fisiologis dan Hasil Padi Organik Kultivar Lokal dan Unggul
Didik Indradewa, dan Prapto Yudono, Mildaerizanti,
ABSTRACT
The farmers involved in Organic farming have many problems, particularly in agriculture, in terms of the provisions dealing with the cultivation of organic food which refers to SNI 6729 in 2010 in which the seed used must come from organic farming itself. In addition to the seed, organic farming requires a suitable varieties for organic conditions, suspected nutrient deficiencies, while special varieties are produced to organic land is not yet available. Research done “The Effect of differences seed origin in organic and conventional farming on the physiological and yield organic rice of local cultivars (Mentik Wangi Susu) and superior (IR-64)". The research conducted at greenhouse K.P. Tridharma Faculty of Agriculture. University of Gadjah Mada, Yogyakarta from March to August 2012. The research aimed (1) to study the effect of seed to the physiological properties, and yield of organic rice on local varieties and superior (2) to determining a good seed for rice varieties organically grown. Research design by randomized block consist two factors with 5 replications, the first factor is the cultivar i.e. local cultivars (Mentik Wangi Susu (M)) and superior cultivars (IR 64 (I)), the second is the seed used i.e. the seeds of organic farming (O) and seeds of conventional (K). Data were analyzed, if there is a significant difference continued with Duncant multiple range test at 5% level. The results showed that there was no differences between organic and conventional seeds to the physiological properties and yield of organic rice on local cultivars (Mentik Wangi Susu) and superior (IR 64). Local cultivars (Mentik Wangi Susu) has higher grain yield per hill than superior (IR-64).
Key words : organic rice, local cultivar, superior cultivar, physiological properties, yield
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2515
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2516
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Pengaruh Perbedaan Jenis Lahan dan Terapan Budidaya Terhadap Produksi Jambu Air Merah Delima
Djoko Prajitno, dan Dja’far Shiddieq, Miranti Dian Pertiwi,
ABSTRACT
Merah Delimais considered as superior native variety of water apple in Demak. The fruitis wellknown as the high quality water apple in theregions. Suitable environment of climate,topography and soil physic chemical properties in Demak make it possible for the fruit to produce more than twice per year with attractive physical appearance of the fruit as redand shiny color, large, sweet, crispy and high economic value. However, researches of Merah Delima water apple were still limited compared to other fruit superior commodities. Therefore, the survey as assessment method of water apple was conducted to identify and study the differences of cultivation, growth and production of the fruits which were cultivated in dryland and paddy fields as specific conditions of Demak regency. The assessmentseries included pre-survey in October 2011 – January 2012 and plant’s observation in March –June 2012 which was a peak season for the fruits. The site locations were chosen purposively ,i.e. in Wonosalam, Demak and Bonang Sub Districts. Inthatcase, water apple tree’s population differences were being the criteria of sites selection. Inpresurvey, as many as 50 farmers were interviewed as respondents with the proportion of consecutive 28 : 14 : and 8 farmers for each Sub District. The plant’s observation included 54 trees which were chosen purposively. ‘Nested design’ was used (3 subdistrict x 2 land types x 3 plants). Basically the cultivation results were compared to Water Apple Standard Operating Procedures (SOP) issued by Demak Agriculture Services. Parameters observed in the survey involved physical and chemical properties of soil, microclimate, growth, production and quality of water apple. The results showed that water apple cultivation applied statuses in dry and paddy field were only in low and medium, based on Water Apple Standard Operating Procedures (SOP). Infact, there were significant interaction effect between land types and cultivation applied as well as between the land types and cultivation applied in Merah Delima Water Apple production. Water Apple cultivation in surjan system or integrated with fish – farming system were less suitable since most of the time the roots were under anaerobic condition. Water apple cultivationis more suitable in flat land within termittent irrigation system since soil moisture was not relatively high. In Grumosol soi ltype, available soil moisture is considered as one of soil physical properties that has negative significant effect for Merah Delima water apple production, both in dry land and paddy field. In that case, the higher available soil moisture the lower water apple Merah Delima production.
Key words: Merah Delima Water apple, cultivation, dry land, paddy field, Demak SubDistrict
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2516
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2517
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
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Pertumbuhan dan Hasil Tiga Varietas Alfalfa (Medicago sativa L.) dengan Perlakuan Tiga Macam Rhizobium pada Media Tanam Regosol Asal Banguntapan
Subantor, Prapto Yudono, dan Bambang Suwignyo, Renan
ABSTRACT
Different alfalfa varieties type of Rhizobium (a side of Rhizobium meliloti) affect to root nodule formation that will have an influence on the growth and yield quality of alfalfa. The rare presence of Rhizobium meliloti so it need to look for other potential rhizobium expected to form root nodules of alfalfa. The purpose of this research is to study the interaction of the three varieties of alfalfa inoculated with different type of rhizobium on growth and quality of alfalfa yield of the first cut.
The experiment was conducted using a completely randomized design with factorial experiment in March to June 2012 in the Green House Laboratory of Forage and Pasture Feed Faculty of Animal Husbandry Gadjah Mada University. Data measurements and observations were done on growth parameters and the quality of the results and were analyzed by analysis of variance with a completely randomized design, and followed by Duncan's multiple range test level 5%. Regression correlation analysis performed to determine the relationship between two variables to determine the effect of growth and quality of alfalfa yield.The results showed that various rhizobium inoculated on Multiking 1, Vernal and Common failed and the unable to form viable root nodules. Several physiological parameters such as growth and photosynthetic rate, net assimilation rate and relative growth rate, showed significant differences between the combination treatment. Generally indicates that all combinations of treatments have relatively high levels of khlorofil, value between 1 to 3.3. Quality nutrients such as crude protein, crude fat, crude fiber, ash content and energy digestibility Variety Multiking 1, Vernal and Common are not significantly different. Nutritional quality and in vitro digestibility of Multiking1, Vernaland Common are not significantly different.
Keywords: alfalfa varieties, type of rhizobium, growth, quality of yield, and in vitro digestibility
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2517
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2518
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
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Pengaruh Cekaman Kekeringan Terhadap Akumulasi Prolin Tanaman Nilam (Pogostemon cablin Benth.)
Tohari, dan Dja’far Siddieq, Setiawan,
INTISARI
Penelitian respon fisiologi tanaman nilam terhadap cekaman air digunakan untuk mengetahui mekanisme tanaman toleran terhadap kekeringan. Penelitian dilaksanakan dirumah kaca di Bogor pada tahun 2012. Evaluasi pengaruh cekaman kekeringan dilakukan terhadap potensian airdaun dan kadar prolin tanaman. Penelitian menggunakan RAK faktorial dengan tiga ulangan. Faktor pertama,varietas nilam (V) yaitu Sidikalang, Lokseumawe, Tapaktuan, dan Bio-4. Faktor kedua, interval penyiraman (W) yaitu1, 3, 6, dan 9 hari sekali. Data dianalisis dengan Anova (uji F) dan dilanjutkan dengan uji DMRT pada taraf 5%. Hasil menunjukkan kadar prolin tertinggi pada interval 9 hari sekali pada varietas Sidikalang dan Lokseumawe.
Kata kunci:Nilam, interval penyiraman, kekeringan.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2518
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2519
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Menunda kerusakan buah sawo (Manilkara zapota (L.) van Royen) dengan berbagai lama penyinaran UV-C dan penyimpanan pada suhu rendah
Trisnowati, Suyadi, Patmi Sera Wahyuni, dan Nur Adhayati, Sri
ABSTRACT
Sapodilla (Manilkara zapota (L.) van Royen) is a perishable fruit that exhibits rapid deterioration after harvesting. Low temperature storage has been extensively used to extend the storage life of many fresh commodities, however it is still rarely used for sapodilla. UV-C radiation has been studied for its capability to inhibit fruit ripening and senescence, and hence prolonging the period of fruit salability. This UV-C radiation might be a pre treatment for sapodilla before storage at low temperature. The objective of this research was to extend the storage life of sapodilla fruits by retarding ripening process through UV-C radiation and low temperature storage. Sapodilla fruits were exposed to four levels of UV-C exposure time i.e. 0 (no radiation), 5, 10, and 15 minutes, then stored at room temperature (27,13–28,11oC) and low temperature (16,70–18,13oC). Observations were taken on fruit respiration and ripening, and other related variables. The results showed that there was no interaction between UV-C radiation and storage temperature. The UV-C radiation did not significantly inhibit fruit ripening, thus did not inhibit the fruit senescence and deterioration. Keeping the fruit at low temperature inhibit fruit ripening and prolong its shelf life 6 days longer than those stored at room temperature.
Key words : Sapodilla, UV-C radiation, low temperature storage, ripening, deterioration.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2519
Ilmu Pertanian (Agricultural Science); Vol 15, No 2 (2012): Desember
eng
Copyright (c)
oai:ojs.journal.ugm.ac.id:article/2520
2014-04-05T03:38:52Z
jip:ART
oai:jurnal.ugm.ac.id:article/2520
2014-04-05T03:38:52Z
jip:ART
nmb a2200000Iu 4500
"140405 2014 eng "
2527-7162
0126-4214
dc
Chromosome Characterization of Bartek (Cucumis Melo L. var. Bartek), Local Melon Variety from Pemalang
Setiadi Daryono and Dian Aruni Kumalawati, Budi
ABSTRACT
Bartek is one of local melon varieties which mainly cultivated in Pemalang, Central Java. Bartek has three shapes of fruit variation; Long-Green, Ellipse-Green, and Yellow. Chromosome characterization of the Bartek was investigated to determine the genetic variation. The main purpose of this research was to determine the genetic characters of Bartek including chromosome number, mitosis, cell cycle, and karyotype. Squash method was used for chromosome preparation. The results showed that all of Bartek observed in this study have similar diploid (2n) chromosome number = 24. According to total number of chromosome, Bartek is more related to melon. The mitotic analysis exhibited that the Bartek has same Karyotype formula, 2n = 2x = 24m. According to the R value of the three kind of Bartek (R< 0.27), it has indicated that three kind of Bartek were considered to be originated from same species and one of melon varieties (Cucumis melo L. var. Bartek).
Key words: cucumber, bartek, chromosome, karyotype
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2520
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2522
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Chromosome Characterization of Bartek (Cucumis Melo L. var. Bartek), Local Melon Variety from Pemalang
Setiadi Daryono and Dian Aruni Kumalawati, Budi
ABSTRACT
Bartek is one of local melon varieties which mainly cultivated in Pemalang, Central Java. Bartek has three shapes of fruit variation; Long-Green, Ellipse-Green, and Yellow. Chromosome characterization of the Bartek was investigated to determine the genetic variation. The main purpose of this research was to determine the genetic characters of Bartek including chromosome number, mitosis, cell cycle, and karyotype. Squash method was used for chromosome preparation. The results showed that all of Bartek observed in this study have similar diploid (2n) chromosome number = 24. According to total number of chromosome, Bartek is more related to melon. The mitotic analysis exhibited that the Bartek has same Karyotype formula, 2n = 2x = 24m. According to the R value of the three kind of Bartek (R< 0.27), it has indicated that three kind of Bartek were considered to be originated from same species and one of melon varieties (Cucumis melo L. var. Bartek).
Key words: cucumber, bartek, chromosome, karyotype
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2522
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2523
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Induksi Haploid Ganda pada Padi Japonica (Oryza sativa L. spp. Japonica), Indica (Oryza sativa L. ssp. Indica), dan Hibrida Japonica x Indica
Catur Prayantini, Panjisakti Basunanda, dan Rudi Hari Murti, Dian
INTISARI
Kultur anter digunakan untuk mendapatkan galur homozigot secara cepat dan meningkatkan efisiensi seleksi. Japonica secara umum relatif mudah dikulturanterkan, berkebalikan dengan indica yang bersifat rekalsitran. Penelitian ditujukan untuk mendapatkan komposisi media dan praperlakuan yang sesuai untuk kultur anter japonica dan indica, mengetahui pengaruh latar belakang kelompok genetik padi terhadap induksi haploid, dan mengintroduksi sifat responsif terhadap kultur anter dari japonica melalui persilangan ke dalam indica yang rekalsitran. Penelitian dilakukan mulai bulan Januari 2009 sampai dengan Desember 2012 di Laboratorium Kultur Jaringan Tanaman PT BISI International Tbk, Kediri, Jawa Timur. Sembilan genotipe digunakan sebagai sumber anter pada penelitian yang mewakili japonica, indica dan F1 hasil japonica dengan indica.
Praperlakuan malai pada suhu 40C selama 8 hari, menggunakan modifikasi N6 + NAA 2 ppm + kinetin 0,5 ppm + sukrosa 54 g/L + putrescin 0,1644 g/L + Phytagel 2,5 g/L dapat digunakan pada hibrida hasil persilangan japonica dengan indica. Praperlakuan malai pada suhu 40C selama 9 hari menggunakan media modifikasi N6 + 2,4-D 2,5 ppm + kinetin 0,5 ppm + AgNO3 10 ppm + maltosa 40 g/L + Phytagel 2,5 g/L dan modifikasi N6+ 2,4-D 2,5 ppm + kinetin 0,5 ppm + maltosa 50 g/L + AgNO3 10 ppm + Phytagel 2,5 g/L dapat digunakan untuk meningkatkan pembentukan kalus pada japonica dan beberapa genotipe indica. Lima galur haploid ganda berhasil diperoleh dari hasil persilangan ‘Ciuhao’ dan ‘Basmati’. Persilangan antara japonica dan indica efektif untuk meningkatkan respon hibrida terhadap media kultur anter dan memiliki peluang lebih tinggi untuk mendapatkan tanaman haploid ganda dibandingkan dengan tetua indica-nya.
Kata kunci : Oryza sativa L., kultur anter, haploid ganda
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2523
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2524
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
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Evaluasi Daya Gabung Karakter Hasil dan Komponen Hasil Lima Galur Mentimun
Wiguna, Aziz Purwantoro, dan Nasrullah, Gungun
INTISARI
Pendugaan daya gabung umum tetua dan daya gabung khusus persilangan diperlukan sebagai pedoman untuk memilih tetua secara efektif dalam program hibridisasi. Penelitian bertujuan untuk menduga nilai daya gabung lima galur mentimun hasil persilangan berdasarkan rancangan dialel metode 2 model 1 menurut griffing. Hibridisasi dilakukan di Lembang dari bulan Oktober 2011 hingga Mei 2012. Evaluasi tetua dan F1 dilakukan di Lembang dan Subang dari bulan Juli hingga Oktober 2012, mengunakan Rancangan Acak Kelompok Lengkap dengan tiga ulangan pada tiap lokasi. Hasil penelitian menunjukkan DGU dan DGK sangat berbeda nyata untuk semua karakter. Interaksi DGU×lokasi sangat nyata untuk karakter panjang buah dan diameter buah, serta nyata pada karakter berat per buah. Interaksi DGK×lokasi sangat nyata untuk karakter diameter buah. Galur P1 memiliki nilai daya gabung umum terbaik untuk karakter berat buah per tanaman. Galur P3 memiliki nilai daya gabung umum terbaik untuk karakter jumlah buah per tanaman. Kombinasi persilangan yang memiliki nilai DGK tinggi untuk karakter hasil dihasilkan oleh hibrida P1×P2, P1×P5, P2×P5, dan P3×P4.
Kata kunci : mentimun, DGU, DGK
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2524
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2525
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
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Pengaruh Vernalisasi Umbi Terhadap Pertumbuhan, Hasil, dan Pembungaan Bawang Merah (Allium cepa L. Aggregatum group) di Dataran Rendah
Endang Sulistyaningsih, dan Didik Indradewa, Jasmi,
INTISARI
Biji bawang merah sebagai bahan tanam memiliki posisi strategis beberapa tahun terakhir. Meskipun demikian, kemampuan berbunga tanaman bawang merah cukup terbatas khususnya pada penanaman di dataran rendah. Di dataran rendah, jumlah tangkai bunga yang dihasilkan per individu tanaman sangat terbatas. Beberapa hasil penelitian sebelumnya memberikan informasi bahwa perlakuan vernalisasi mampu meningkatkan pembentukan bunga pada tanaman bawang merah, khususnya pada penanaman di dataran tinggi. Pada penanaman bawang merah di dataran rendah, informasi mengenai pengaruh perlakuan vernasilasi terhadap kemampuan berbunga hingga saat ini belum ada. Oleh karena itu, penelitian terkait hal tersebut cukup penting untuk dilakukan. Tujuan penelitian adalah 1) mengidentifikasi pengaruh lama vernalisasi terhadap pertumbuhan, pembungaan serta hasil umbi dan biji bawang merah dan 2) menentukan lama vernalisasi yang optimum untuk meningkatkan pertumbuhan, pembungaan serta hasil umbi dan biji bawang merah. Penelitian dilaksanakan di Kebun Tridharma Fakultas Pertanian UGM, Banguntapan, Bantul, Yogyakarta dari bulan Oktober 2011 – Januari 2012. Percobaan disusun dalam rancangan acak kelompok lengkap faktorial dengan 3 blok sebagai ulangan. Faktor pertama adalah varietas yaitu: Katumi, Biru, Bima dan Tiron. Faktor kedua adalah lama vernalisasi yaitu tanpa vernalisasi, vernalisasi selama 4 minggu, 5 minggu, dan 6 minggu. Pengamatan dilakukan terhadap tinggi tanaman, jumlah daun, jumlah anakan, jumlah umbi, diameter umbi, berat segar, dan berat kering jemur umbi. Analisis pertumbuhan meliputi indeks luas daun, laju asimilasi bersih, laju pertumbuhan tanaman, dan indeks panen. Hasil penelitian memberikan informasi bahwa lama vernalisasi yang optimal untuk peningkatan berat segar umbi varietas Bima adalah 12-13 hari, dengan indikasi peningkatan berat segar umbi hingga mencapai 14,47 g. Berat kering umbi terbaik dihasilkan oleh varietas Bima (6,00 g) dengan lama vernalisasi 13-14 hari. Pembungaan tidak terjadi pada semua perlakuan yang diuji sehingga dapat disimpulkan bahwa perlakuan vernalisasi tidak mampu menginduksi pembungaan pada tanaman bawang merah yang ditanam di dataran rendah yang dikarenakan faktor lingkungan (suhu, angin) rata- rata cukup tinggi dan panjang penyinaran yang rendah pada saat penelitian berlangsung.
Kata kunci : bawang merah, varietas, vernalisasi, pembungaan.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2525
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2526
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Induksi Poliploidi dengan Kolkisina pada Kultur Meristem Batang Bawang Wakegi (Allium x wakegi Araki)
Setyowati , Endang Sulistyaningsih, Aziz Purwantoro, Mita
INTISARI
Bawang wakegi tidak dapat berbunga sehingga tidak menghasilkan biji. Akibatnya, bawang wakegi memiliki keragaman genetik yang sempit. Penelitian ini bertujuan untuk mendapatkan konsentrasi kolkisina optimum untuk induksi poliploidi bawang wakegi dan mendapatkan tanaman bawang wakegi poliploid. Penelitian dilaksanakan di Fakultas Pertanian Universitas Gadjah Mada pada bulan Juni 2011 sampai Januari 2013. Rancangan percobaan yang digunakan adalah RAKL faktorial 2 faktor dengan 4 ulangan. Faktor pertama adalah kultivar yaitu ‘Lembah Palu’, ‘Palasa’, dan ‘Sumenep’. Faktor kedua adalah konsentrasi kolkisina yaitu 0 g.L-1, 0,5 g.L-1; 1 g.L-1; dan 1,5 g.L-1 dengan lama inkubasi tiga hari. Pengamatan dilakukan pada umur 2 hingga 8 minggu setelah tanam di dalam botol untuk parameter pertumbuhan dan morfologi serta sitologinya.
Hasil penelitian menunjukkan bahwa jumlah kromosom 2n=32 (tetraploid) diperoleh pada kultivar ‘Palasa’ dengan perlakuan kolkisina 0,5 dan 1,5 g.L-1 serta kultivar ‘Sumenep’ dengan perlakuan kolkisina 1 g.L-1. Tanaman poliploid tersebut diatas memiliki ukuran sel, ukuran stomata dan epidermis lebih besar serta densitas stomata lebih sedikit dibandingkan tanaman kontrol.
Kata kunci : bawang wakegi, poliploidi, kolkisina, invitro
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2526
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2527
2016-12-09T04:21:33Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Pertumbuhan dan Hasil Jagung pada Berbagai Pemberian Pupuk Nitrogen di Lahan Kering Regosol
H.H. Sonbai, Djoko Prajitno, dan Abdul Syukur, Jemfris
ABSTRACT
Nitrogen is a macro-nutrient that is the primary determinant in corn crop production that is cultivated on dry land. Corn production can be increased by providing inorganic and organic fertilizer.
The purpose of the research is to discover the influence of carbamide (urea fertilizer) and cow manure fertilizer levels on the growth of corn production on regosol dry land. The research was conducted from March-June, 2012, at the Gadjah Mada University (UGM) Agriculture Faculty Tridarma Garden, in Banguntapan. The experimental design uses a Complete Group Random Design (RAKL) which consists of two factors. The first factor provides three different amounts of carbamide (100 kg/ha, 150 kg/ha, and 200 kg/ha). The second factor has three different amounts of cow manure fertilizer (10 t/ha, 15 t/ha, and 20 t/ha).
The research findings show that the plant height, leaf width, total plant net weight, blossom period, harvest period, seed weight, chlorophyll level, and N-leaf level are influenced by the amount of carbamide, while the amount of cow manure fertilizer can repair the physiological and chemical nature of the soil. There is no relationship between carbamide and cow manure fertilizer levels on corn growth and productivity levels. The use of carbamide has a significant influence on corn growth and productivity on regosol dry land. The average corn productivity on regosol dry land with 200 kg/ha of carbamide is 7.38 t/ha, while lamuru corn has a harvest potential of 7.6 t/ha.
Key words: nitrogen, cow manure fertilizer, regosol dry land, corn, physiological, growth, harvest.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2527
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2528
2016-12-09T04:21:34Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
The Dynamics of Nitrate Reductase in Tea Leaves
Kasim, Taryono, Sriyanto Waluyo, and Hari Kartiko, M. Husian
ABSTRACT
Crop productivity depends on adequate nitrogen supply. Nitrate is one form of nitrogen in the soil which is absorbed by plant root and the process of nitrate reduction in plant cells was catalyzed by nitrate reductase, therefore NRA might be able to be used as biochemical tools to estimate tea leaves productivity and the dynamics of NRA can be used to check the nitrogen availability in the soil.
To study the dynamic of nitrate reductase in respond to fertilizer application, an experiment which includes two factors i.e. plant materials and nitrogen fertilizer application was conducted during rainy season at experimental field of Pagilaran tea plantation. Factorial treatment design with plant materials i.e. 2 vegetative origin of TRI-2024 and TRI-2025 and 1 seed origin were used as first factor, while 2 dosages of nitrogen fertilization (0 and 250 kg/ha urea + 60 kg/ha SP36 + 60 kg/ha KCl) used as the second factor with 3 replications. The activity of nitrate reductase was then measured every week continuously started 8 weeks before fertilizer application (WBF) and ended 8 weeks after fertilizer application (WAF).
There result showed that the dynamics of NRA was depend on soil moisture and nitrate availability in the soil. When urea was used as nitrogen source, urea will be hydrolyzed first to produce ammonium and then ammonium will be nitrified to nitrate. This process could be studied from NRA in tea leaves, though NRA seemed could not be used as biochemical tool to estimate tea leaves productivity.
Keyword : Nitrat reductase, tea, production
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2013-12-10 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2528
Ilmu Pertanian (Agricultural Science); Vol 16, No 1 (2013): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2529
2016-12-09T04:21:34Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Morphogenetic Variation of Shallot (Allium cepa L. Aggregatum Group)
Laila, Endang Sulistyaningsih, and Arif Wibowo, Alfu
ABSTRACT
There are many shallot cultivars cultivated in Java with varying greatly morphological traits and yield. Morphological and yield variation indicate that there are genetic variation and varying in resistance to pest and disease. One of major disease that cause yield losses of shallot is Fusarium Basal Rot (FBR) caused by Fusarium oxysporum f. sp. cepae (Foc). The pathogen could cause yield losses of shallot in field up to 90%.
The number of sixteen shallot cultivars were collected and studied for determining polymorphisms of nuclear based on Random Amplified Polymorphism DNA (RAPD) and the morphological traits. Potted research was conducted at greenhouse from December to February 2012, in Department of Agriculture, Universitas Gadjah Mada (UGM), Yogyakarta. Four shallot cultivars were selected for study the response to Foc under biofertilizer application. They were Kuning, Trisula, Tiron, and Crok cultivars. The field experiment was carried out from June to August 2012 at the Agricultural Training, Research and Development Station (ATRD/KP4) in Kalitirto, Sleman, Yogyakarta. The research design was split plot 4 x 4, with three replications. The plots consisted of shallot which cultivated in Foc inoculation, biofertilizer application, combination of Foc inoculation and biofertilizer application, and without any treatments. The subplot consisted of shallot cultivars. All data were statistically analyzed using the variance analysis. Standard error was tested to determine the significant differences among treatment means.
Similarity coefficient among shallot cultivars as revealed by UPGMA cluster analysis of RAPD markers generated to molecular dendogram. The similarity of genetic dendogram ranged from 0.85 to 0.66 and separated of cultivars into two groups. Based on morphological analysis, there were variations of all variable that tested. Mophological dendogram made possible to identify four group.
Fusarium Basal Rot (FBR) incidence caused by seedborne was 6.94%. Biofertilizer application could not decrease significantly FBR incidence but it could increase number of bulb per plant in Crok and Kuning cultivars. FBR incidence with 43.75% caused by Foc inoculation was significantly decreasing plant height, number of bulbs, diameter of bulbs, and length of bulbs. However, yield of shallot decreased significantly from 1.05 kg/m2 to 0.63 kg/m2 when the shallot plantation was inoculated by Foc. The shallot plantation was inoculated by Foc under biofertilizer application did not show significantly decreasing FBR incidence and increasing the yield. FBR incidence and yield of Trisula, Crok and Tiron cultivars did not show difference significantly from Kuning cultivar as susceptible to Foc.
Key words: cultivar, shallot, RAPD, Fusarium oxysporum f. sp. Cepae (Foc), biofertilizer
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-03-29 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2529
Ilmu Pertanian (Agricultural Science); Vol 16, No 2 (2013): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2530
2016-12-09T04:21:34Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
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Uji Kebenaran Enam Kultivar Cabai Keriting (Capsicum annuum L.)
Panjisakti Basunanda, dan Aziz Purwantoro, Fahrudin,
INTISARI
Cabai adalah salah satu sayuran yang paling penting di Indonesia, terutama pada pemanfaatannya yang luas dan bernilai ekonomi tinggi. Permintaan untuk menanam sayuran asal Amerika Selatan ini selalu tinggi, meningkatkan pelaporan praktek-praktek pelanggaran dalam pasokan benih, dalam bentuk sengaja mengurangi atau mengubah kemurnian kultivar, yang melanggar praktik bisnis yang baik. Untuk menanggulangi praktek pelanggaran seperti itu, kontrol rutin pada benih yang dijual di tingkat petani perlu dilakukan. Sayangnya, prosedur standar untuk kontrol tersebut belum tersedia di Indonesia. Penelitian ini dilakukan dengan tujuan untuk memberikan prosedur yang dapat dianggap sebagai awalan dan mungkin menjadi pembahasan pada perkembangan selanjutnya.
Enam kultivar cabai dikumpulkan dari pasar terbuka. 'Lado', yang merupakan produk populer dari East West Seed, diperoleh dari pasar di Medan (A1), Makassar (A2), Tangerang (A3), dan Mataram (A4). 'Princess-06', sebuah produk dari PT Benih Inti Subur Intani, diperoleh dari Lembang (B1), Sleman (B2), dan Mataram (B3). Empat kultivar berikutnya adalah produk dari P T Oriental Seed Indonesia. 'OR Charming' diperoleh dari Serang, dan 'OR Twist 22', 'OR Twist 33', dan 'OR Twist 42' diperoleh dari Magelang. Dua lokasi yang dipilih untuk penelitian ini: Krukut, Depok, Jawa Barat, dari bulan Mei hingga Oktober tahun 2012 (+ 90 m dpl) dan Cikole, Lembang, Jawa Barat, dari bulan Mei hingga November 2012 (+ 1.250 m dpl). Keseragaman dalam dan di antara sumber-sumber pasar dalam satu kultivar diuji berdasarkan karakter fenotipik kualitatif dan kuantitatif. Berdasarkan karakter yang sama, kesesuaian pada deskripsi dari masing-masing kultivar juga diuji.
Keseragaman dalam dan di antara sumber-sumber pasar dari kultivar yang sama terbukti sah, berdasarkan karakter kualitatif maupun kuantitatif. Hasil ini didasarkan pada analisis varians untuk sifat kuantitatif dan didukung dengan analisa komponen utama. Ambang batas untuk sifat kuantitatif, memperhitungkan penyimpangan maksimum 5% dari jumlah sampel.
Uji kebenaran deskripsi berdasarkan pada karakter kualitatif menyimpulkan bahwa hampir semua ciri sesuai dengan deskripsi masing-masing kultivar. Beberapa perbedaan diasumsikan sebagai hasil salah tafsir. Namun, pada karakter kuantitatif menunjukkan performa lebih rendah di kedua lokasi, performa diamati untuk semua sampel pada semua variabel kuantitatif dengan hanya sejumlah kecil outlier (pencilan). Hasilnya menimbulkan dugaan bahwa uji performa untuk pendaftaran kultivar dilakukan di bawah lingkungan yang sangat berbeda dengan lingkungan pada penelitian ini, dan hasil ini menimbulkan isu ketidakstabilan.
Kata kunci: uji kebenaran deskripsi, cabai, agromorfologi, uji keseragaman.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-03-29 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2530
Ilmu Pertanian (Agricultural Science); Vol 16, No 2 (2013): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2531
2016-12-09T04:21:34Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
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Pengaruh Asam Humat Sebagai Pelengkap Pupuk Terhadap Ketersediaan dan Pengambilan Nutrien pada Tanaman Jagung di Lahan Kering Kecamatan Bayan-NTB
Hermanto, N.K.T. Dharmayani, R. Kurnianingsih, dan S.R. Kamali, D.
INTISARI
Suatu studi tentang pengaruh asam humat sebagai pelengkap pupuk terhadap ketersediaan dan pengambilan nutrienpada tanaman jagung di lahan kering Kec. Bayan Kab.Lombok Utara - NTB telah dilakukan.Penelitian dimulai dengan pemetaan lahan dan menganalisis beberapa sifat fisik dan kimia tanah sebelum penanaman jagung dilakukan.Lahan pertanian kec. Bayan memiliki sifat fisik bertekstur pasir, struktur lepas dan berwarna coklat kemerahan dengan derajat keasaman netral (pH 6,97 pada kedalaman 0–20 cm dan pH 6,8 pada kedalaman 21–40 cm). Selain itu tanahini mempunyai kandungan hara (Corganik, N, P, K) tersediakan rendah pada kedalaman 0–20 cm dan 21–40 cm berturut-turut yaitu 0,912% dan 1,150%; 0,064% dan 0,074%; 0,001% dan 0,005%; 0,290% dan 0,310%. Sedangkan logam Zn dan Fe pada kedalaman 0–20 cm dan 21–40 cm berturut-turut yaitu 0,002% dan 0,002%; 2,006% dan 1,950%. Penerapan asam humat sebagai pelengkap pupuk mampu meningkatkan ketersediaan dan pengambilan unsur hara bagi tanaman. Ketersediaan dan pengambilan N,P,K, Zn dan Fe tertinggi ditemukan pada perlakuan asam humat 20 kg ha-1 bersama pupuk NPK dosis 100%. Aplikasi asam humat pada tanah terbukti meningkatkan pertumbuhan tanaman (tinggi tanaman, berat, kandungan nutrisi buah jagung).Takaranpaling efisien untuk pemupukan adalah asam humat 20 kg ha-1 bersama 150 kg ha-1 urea, 200 kg ha-1 SP36 dan 50 kg ha-1 KCl.
Kata kunci:asam humat, tanaman jagung, ketersediaan dan pengambilan nutrien, lahan kering.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-03-29 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2531
Ilmu Pertanian (Agricultural Science); Vol 16, No 2 (2013): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2532
2016-12-09T04:21:34Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
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Induksi Ketahanan Tanaman Jagung (Zea mays L.) Terhadap Penyakit Bulai Melalui Seed Treatment Serta Pewarisannya pada Generasi S1
Aziz Purwantoro, dan Andi Khaeruni, Hoerussalam,
INTISARI
Ketahanan terhadap penyakit merupakan salah satu sifat yang sangat penting dalam pemuliaan tanaman karena mempengaruhi kualitas dan tingkat produksi tanaman. Salah satu upaya untuk meningkatkan ketahanan tanaman terhadap penyakit adalah melalui induksi ketahanan sistemik yang dipicu oleh pengaplikasian elisitor dengan melibatkan koordinasi dan ekspresi dari gen tertentu (gen SAR) serta ditandai oleh akumulasi senyawa tertentu seperti asam salisilat atau asam jasmonat.
Penelitian terdiri dari tiga bagian percobaan, yaitu: 1. Seleksi galur. Percobaan ini bertujuan untuk mendapatkan galur yang mengalami peningkatan status ketahanan dan memilih satu dari enam galur yang paling responsif terhadap perlakuan (elisitor). Percobaan menggunakan enam varietas jagung hibrida C02, C05, C13, C19, C20 dan SC 4D-139 yang diaplikasikan empat macam elisitor, yaitu Plant Growth Promoting Rhizobakteri (PGPR) Bio1 dan Bio2, asam salisilat (Abio1), serta Benzothiadiazole-S-Methyl (Abio2) melalui seed treatment. Percobaan dilakukan di lapang dengan menggunakan tanaman penyebar (spreader) sebagai sumber inokulum. Benih yang sudah di treatment kemudian ditanam, dan diamati sampai umur 42 hari setelah tanam. Evaluasi perubahan status ketahanan dilakukan dengan cara membandingkan status ketahanan asal (non treatment) dengan status ketahanan setelah diinduksi. Tanaman dari varietas yang mengalami peningkatan status ketahanan akan di selfing untuk mendapatkan benih generasi S1. 2. Status ketahanan terinduksi yaitu verifikasi ketahanan terimbas di tingkat fisiologis dan molekuler melalui pengukuran asam salisat dan deteksi gen PR-1 menggunakan teknik PCR. 3. Evaluasi pewarisan ketahanan pada generasi hasil selfing (S1) dari varietas yang mengalami peningkatan status ketahanan.
Hasil menunjukkan jagung galur C20 paling responsif terhadap keempat macam elisitor dan mengalami peningkatan status dari agak rentan menjadi agak tahan ( perlakuan Bio1 dan Abio1) dan menjadi tahan (perlakuan Bio2 dan Abio2). Verifikasi secara fisiologis dan molekular menunjukan bahwa kandungan asam salisilat cenderung mengalami peningkatan setelah inokulasi P. maydis dibandingkan dengan sebelum inokulasi patogen dan terdeteksi gen PR-1 pada tanaman dari varietas C20 hasil treatment. Sementara itu, analisis studi pewarisan menunjukkan peningkatan ketahanan galur jagung C20 diturunkan pada populasi generasi S1 dan mengikuti pola pewarisan Mendel untuk rasio 15:1.
Kata kunci: induksi ketahanan, elisitor, asam salisilat, PGPR, pathogenesis-related protein
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-03-29 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2532
Ilmu Pertanian (Agricultural Science); Vol 16, No 2 (2013): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2533
2016-12-09T04:21:34Z
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"131210 2013 eng "
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Pergeseran Komposisi Gulma pada Perbedaan Proporsi Populasi Jagung dan Kacang Tanah dalam Tumpangsari pada Regosol Sleman
Pasau, Prapto Yudono, dan Abdul Syukur, Paulus
INTISARI
Kajian komunitas gulma dalam sistim tanam tumpangsari antara jagung dan kacang tanah ditujukan untuk mengetahui dinamika komunitas gulma dalam sistim pertanaman tumpangsari dan efisiensi pemanfaatan lahan. Sistim tanam tumpangsari pada tumpanggilir jagung dan kacang tanah menyebabkan perubahan komunitas gulma dan jenis-jenis gulma dominan dari gulma tekian dan rumputan menjadi gulma berdaun lebar. Komunitas gulma yang tumbuh pada tanaman jagung monokultur berbeda dengan komunitas gulma yang tumbuh pada sistim monokultur kacang tanah dan tumpangsari jagung-kacang tanah. Percobaan dilakukan secara tumpanggilir jagung dan kacang tanah Percobaan dilakukan di lapangan menggunakan rancangan acak kelompok lengkap dengan lima perlakuan yang diulang tiga kali. Perlakuan yang dicoba terdiri dari p0 (monokultur kacang tanah), p1 (75% kacang tanah + 25% jagung), p2 (50% kacang tanah + 50% jagung), p3 ( 25% kacang tanah + 75% jagung) dan p4 (monokultur jagung).
Hasil penelitian menunjukkan bahwa tumpangsari kacang tanah dan jagung menyebabkan terjadinya pergeseran gulma, yang semula lahan didominasi golongan rerumputan pada umur 3 MSTK (minggu setelah tanam kacang tanah), bergeser menjadi gulma tekian pada umur 6 MSTK, gulma daun lebar pada saat panen.
Kata kunci: gulma, pergeseran ,tumpangsari, populasi
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-03-29 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2533
Ilmu Pertanian (Agricultural Science); Vol 16, No 2 (2013): Desember
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/2534
2016-12-09T04:21:34Z
jip:ART
nmb a2200000Iu 4500
"131210 2013 eng "
2527-7162
0126-4214
dc
Pengaruh Abu Sabut Kelapa Terhadap Ketersediaan K di Tanah dan Serapan K pada Pertumbuhan Bibit Kakao
Risnah, Prapto Yudono, dan Abdul Syukur, Sitti
INTISARI
Peningkatkan produksi kakao dengan upaya ektensifikasi pada lahan marginal terus dilakukan, kegiatan pemupukan untuk meningkatkan kesuburan tanah guna peningkatan produksi kakao terkendala dengan harga pupuk yang mahal dan kelangkaan. Oleh karena itu diperlukan alternatif sebagai pengganti pupuk berupa pupuk organik yang berasal dari limbah tanaman. Alternatif untuk mengganti pupuk KCl adalah dengan abu sabut kelapa yang memiliki kandungan K yang tinggi. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian abu sabut kelapa terhadap ketersediaan K dalam tanah dan untuk mengetahui serapan K pada pertumbuhan bibit kakao.
Penelitian dilaksanakan di Kebun Tridarma Fakultas Pertanian Universitas Gadjah Mada, Banguntapan, Bantul, Daerah Istimewa Yogyakarta pada bulan Februari – Juni 2012. Penelitian dilakukan menggunakan Rancangan Acak Lengkap (RAL) faktor tunggal yang terdiri enam perlakuan dengan tiga ulangan. A01(kontrol 1) = KCl 100% rekomendasi, A02 (kontrol 2) = tanpa pupuk abu dan KCl, A1 = abu sabut kelapa setara 50% rekomendasi KCl, A2 = abu sabut kelapa setara 100% rekomendasi KCl, A3 = abu sabut kelapa setara 150% rekomendasi KCl, A4 = abu sabut kelapa setara 200% rekomendasi KCl. Keseluruhan terdapat 15 satuan percobaan. Dilakukan analisis awal pada tanah dan abu sabut kelapa. Parameter pengamatan meliputi kesuburan tanah setelah inkubasi (pH, BO, KPK dan K tersedia tanah), kesuburan tanah setelah tanam (K tersedia dan pH tanah), serapan K. analisis dilakukan dengan sidik ragam pada uji jarak ganda Duncan taraf 5%.
Hasil penelitian menunjukkan perlakuan 200% abu sabut kelapa efektif meningkatkan K tersedia tanah hingga umur 4 bulan setelah tanam. tetapi tidak berbeda nyata dengan 150% abu sabut kelapa. Perlakuan 200% abu sabut kelapa (39,25 g ) memperlihatkan ketersediaan K dalam tanah tetap tinggi pada 4 bulan setelah tanam tetapi tidak berbeda nyata dengan perlakuan 150% (29,44 g) dan 100% (19,64 g) abu sabut kelapa. Dosis 200% (39,25 g) abu sabut kelapa menunjukkan serapan K tertinggi namun tidak berbeda nyata dengan dosis 150% (29,44 g) dan 100% (19,64g) abu sabut kelapa.
Kata Kunci : abu sabut kelapa, ketersedian, pertumbuhan, bibit kakao
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-03-29 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2534
Ilmu Pertanian (Agricultural Science); Vol 16, No 2 (2013): Desember
eng
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oai:jurnal.ugm.ac.id:article/2535
2016-12-09T04:21:34Z
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"131210 2013 eng "
2527-7162
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Side Grafting of Unproductive Cocoa : Socio-Economic and Ecological Impact
and Dyah Weny Respatie, Taryono
ABSTRACT
Cocoa is a tree of the humid lowland tropics produced largely by small farmers, therefore in developing countries it can be used to generate farmer’s income, provide labor employment and conserve environment. At the last decade, the cocoa productivity, the size and quality of beans in Indonesia significantly tend to decline due to the ageing of the tree, poor farming maintenance practice, planting of low yielding variety and ravages caused by pest and diseases. Such declining affects the price and the farmer’s income, and farmers respond by leaving the plantation, replacing with food crops or oil palm, and increasing forest clearing which will threaten the environment. Such problem can be addressed by increasing the long term cocoa productivity of existing farms through side grafting of unproductive cocoa trees with genetically improved varieties. In 2008, it was reported that there are around 235.000 ha of unproductive cocoa that can be improved though side grafting. There was almost 90.000 ha that has been side grafted in 2009 and 2010 by the government support, and in 2011 evaluation through focus group discussion has been carried out. Side grafting with recommended varieties normalizes the cocoa growth, and cures the diseases. With a recommended cultivation technique, the productivity increases twice which followed by improve seed size. These result probably will gives an impact not only on the income but also farmer’s future. Several farmers informed that they will not demolish their cocoa farm or even clear new land for crop food. Normal growth of cocoa and stopping opening new land will have a positive effect to the environment especially in mitigating climate change.
Keywords: side grafting, cocoa
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-03-29 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/2535
Ilmu Pertanian (Agricultural Science); Vol 16, No 2 (2013): Desember
eng
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oai:jurnal.ugm.ac.id:article/4920
2017-07-03T00:09:04Z
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"140630 2014 eng "
2527-7162
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The Use of Gliphosate Herbicides on Growth, Yield and Residue of Corn
Danang Faqihhudin, Haryadi, dan Heni Purnamawati, Muhammad
Departemen Agronomi dan Hortikultura, Fakultas Pertanian, Institut Pertanian Bogor
Array
The objective of the research was to determine the effect of glyphosate herbicides on growth and yield of corn. This experiments was conducted at Sindang Barang Farm, Bogor from April to August 2013. This experiment used a Randomized Block Design with one factor namely dose of active ingredient glyphosate herbicide. The experiment consisted of 5 treatments such as control, and herbicide with doses 3, 4, 5, and 6 l ha-1. Plot size was 4 x 4 m, with plant spacing of 70 x 20 cm. Plots were treated on week before planting. Growth and yield of corn were influenced by herbicide treatments. Herbicide treatment at doses of 4 l ha-1 to produce seed growth, number of leaves, plant height, and leaf area the highest compared with other treatments. Similiar results also occur in the yield parameters of corn. Increased herbicide doses above 4 l ha-1 lower the better outcomes observed that variable growth and yield of corn. Based on glyphosate residue analysis indicated that each treatments contained residues of glyphosate. Herbicide treatment doses of 6 l ha-1 showed the highest residual value compared with other treatments. Based on glyphosate residue analysis in this research is still below the minimum limits of residue.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-06-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/4920
Ilmu Pertanian (Agricultural Science); Vol 17, No 1 (2014): Juni
eng
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oai:jurnal.ugm.ac.id:article/4921
2016-12-09T04:21:34Z
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"140630 2014 eng "
2527-7162
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Performance of Agro-Morphology and Genetic Parameter of 12 Rice Genotypes at Lowland Rice Irrigation
Sutaryo, Bambang
Balai Pengkajian Teknologi Pertanian Yogyakarta
ABSTRACT
Research to study performance of agro-morfology and genetic parameters of twelve rice genotypes at lowland rice irrigation was conducted at Giripeni, Kulon Progo, Yogyakarta, during the wet season of November 2011 to February 2012. Twelve rice genotypess, namely Inpari 1, Inpari 2, Inpari 3, Inpari 4, Inpari 5, Inpari 6, Inpari 7, Ciherang, Dodokan, Silugonggo, Situ Bagendit, and IR64 were arranged in a randomized complete block design in three replications. Seedling of 15 days was planted in legowo 4:1, with one seedling per hill, spacing of 25 x 12,5 x 50 cm, in plot size of 5 x 10 m2. Time application and dosage of fertilizer were :1) Three days before planting with 2 t/ha organic, 2) Five days after planting with 300 kg/ha Phonska, 3) At 21 days after planting with 100 kg Urea/ha; and 4) At 35 days after planting with 100 kg Urea/ha. Data indicated that Inpari 3, Inpari 5 and Inpari 1 yielded 7.55; 7.44; and 6.98 t ha -1 respectively, and significantly higher than that of the best check variety Ciherang (6.26 t ha-1 ). Broad genetic variabilities were found for grain yield, panicle number per hill, filled grain per panicle, and total grain per panicle. High heritability estimate was found for 1000-grain weight, filled grain per panicle, total grain per panicle, panicle number per hill, plant height, and maturity. Genetic and phenotypic correlation between filled grain per panicle and yield, total grain per panicle and yield, and panicle number per hill and yield showed significantly different.
Key words : agro-morphology, genetic parameter, rice genotype, lowland irrigation
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-06-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/4921
Ilmu Pertanian (Agricultural Science); Vol 17, No 1 (2014): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/4922
2016-12-09T04:21:34Z
jip:ART
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"140630 2014 eng "
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Physiological Characters and Yield of Tea Shoots at Some Age of Production Pruning and Altitude
Muningsih, Didik Indradewa, dan Endang Sulistyaningsih, Retno
Fakultas Pertanian UGM Yogyakarta
ABSTRACT
Altitude in the tea plantation effect physiological processes of the tea plants. That will effect pruning time of tea plant. Therefore, this research is carried out to find: 1) Physiological process of tea plant grow in different ages of pruning and altitudes, 2) Optimum age of pruning at differentaltitude. The research was carried out in tea plantation in Inti PT Pagilaran Batang from July to November 2010. The research was conducted in Oversite design using 2 factor, hight place of plantation area (altitude) i.e 700-900 m asl (above sea level), 900-1100 m asl, 1100-1350 m asl and age of prune i.e 1-year after pruning, 2-years after pruning, 3-years after pruning and 4-years after pruning. All the combination treatment was replicated in 3 blocks. The observation were done on several variable of physiologi, growth and yield.All data were analyzed by variant analysis of oversite (multilocation) levels of 5%, followed by Duncant multiple range test level of 5% if there was significantly different in varian analysis.The results showed that at an The 3-years after pruning tea plants showed the lowest characters in fresh and dry shoot weight. Its pointed out bynumber of accumulative pecco shootthan 1, 2 and 4-years after pruning. Then in altitude of 900-1100 m asl and 1100-1350 m asl the 3-years after pruningthe tea plants showed the higher characters in fresh and dry shoot weight.Its pointed out by number of accumulative peccoshootthan the age of 1, 2 and 4-years after pruning.Decline in crop production occurs at the age of 4-years after pruning, marked by number of accumulative pecco shoots, weight per pecco shoot and length of internodia is lower.
Key words: tea, pruning, altitude, ecophysiology of tea
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-06-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/4922
Ilmu Pertanian (Agricultural Science); Vol 17, No 1 (2014): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/4923
2016-12-09T04:21:34Z
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"140630 2014 eng "
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Adventitious Root Characteristics of Some Assamica Tea Clones (Camellia sinensis L. Kuntz)
Sriyanto Waluyo, and Sholehan, Taryono,
Faculty of Agriculture, Gadjah Mada University
ABSTRACT
Tea is multiplied either through generative or vegetative propagation systems. Vegetative propagation is limited by several factors such as poor survival rate at nursery due to poor root formation of some clones and seasonal dependent rooting ability of cutting, however root system plays an important role in regulating of water uptake and absorb nutrient from the soil. Root formation was believed under genetically control, therefore the objective of this research is to characterize genetically the adventitious root of some tea clones. Seven clones were explored to study the adventitious root formation through the improvement of rooting media. The result showed that (1) improvement of root quality of tea through adding rooting media with plant growth regulators seemed difficult to be implemented, (2). Rooting of tea cutting is under genetic control, (3) effort to improve root quality of tea through breeding approach looked visible in the future.
Keyword : assamica tea, root, characters
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-06-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/4923
Ilmu Pertanian (Agricultural Science); Vol 17, No 1 (2014): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/4924
2016-12-09T04:21:35Z
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"140630 2014 eng "
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The Implementation of Geographic Information System for Agricultural Commodities Data Inventory and Land Condition Information in Kudus Regency
Nahdi, Hendy Hendro HS, Hadi Supriyo, Solekhan, Zed
Fakultas Pertanian, UMK
ABSTRACT
Indonesia as an agricultural country needs to ensure the provision of sustainable agricultural land as the main source of income for the majority of its people by fostering the implementation of the principles of efficiency, sustainability, and self-reliance as well as environmentally sound in agricultural land-use. On the other hand, the high population growth of the country (1.4 to 1.5% per year) as well as the economic and industrial development resulted in the degradation and conversion of agricultural lands that hamper the carrying capacity nationally in maintaining independence and food security.Based on this background, system and methodology developed land suitability mapping using spatial and temporal approach. The goals to be achieved is, first of agricultural land suitability analysis is based on the type of agricultural commodities and climate information, both the alignment evaluation of agricultural land use and spatial planning of the area, the third degradation analysis and mapping of agricultural areas based on data for 1990-2010, the four evaluation Spatial Plan (Spatial), and fifth strategies and policies appropriate to the land use for sustainable agriculture and backup. The methods used in this study include descriptive survey, analysis of spatial and temporal data using statistics G*. Range of values used for the classification of documents using agroecological zone guidelines.
Keywords: modeling, mapping, spatial, temporal, G * statistic.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-06-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/4924
Ilmu Pertanian (Agricultural Science); Vol 17, No 1 (2014): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/4975
2016-12-09T04:21:35Z
jip:ART
nmb a2200000Iu 4500
"140722 2014 eng "
2527-7162
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Genetic Variability of Rice Pericarp Color Parameters and Total Anthocyanine Content of Eleven Local Black Rice and Their Correlation
Taryono, Panjisakti Basunanda, dan Rudi Hari Murti, Kristamtini,
Balai Pengkajian Teknologi Pertanian (BPTP) Yogyakarta
ABSTRACT
Black rice starts to be consumed as functional food due to high anthocyanine content which functioned as an antioxidant. The different in an existing name is predicted due to the pericarp color differences which are from light to heavy black. It is therefore that morphological characteristics observation of pericarp color is required. This study aimed to identify genetic variability of 11 Indonesian local cultivar of black rice based on pericarp color parameters and total anthocyanine content, even their correlations. L*, a*, b* color parameters were observed using Chroma Meter - Konica Minolta – Minolta CM-2006, and white standard color was used for calibration, whereas total anthocyanine content was measured based on absorbent value of grinded rice grains using 535 nm wavelength of spectrophotometer. Color parameters and total anthocyanine content data were analyzed using analysis variance to estimate Genetics Variability Coefficient and cluster analysis to know the similarity among these local cultivars of black rice. The result showed that b* color variable and total anthocyanine content indicate broad genetic variability, whereas L* and a* color variables depict narrow genetic variability. There were 3 different groups of black rice based on L*, a* and b* color parameters and total anthocyanine content. These were Cempo ireng; Banjarnegara, Banjarnegara-Wonosobo, Magelang berbulu, Magelang tak berbulu, Nusa Tenggara Timur and Pari Ireng; and Sragen, Jlitheng, Bantul and Melik groups. Positive significant correlation was observed between L*, a*, b* color parameters, and there was negative significant correlation between total anthocyanine content and L*, a*, dan b* color parameters.
Key words: genetic variability, pericap colour parameters, total anthocianin content, local black rice
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-06-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/4975
Ilmu Pertanian (Agricultural Science); Vol 17, No 1 (2014): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/5433
2016-12-09T04:21:36Z
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"151211 2015 eng "
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Aminudin, Holidi
Universitas Musi Rawas
Safriyani, Etty
Warjiyanto, Warjiyanto
Sutejo, Sutejo
The area of dry land for plantation cultivation is limited, so peatland would be an alternative development. Adaptation of plant oil palm on the long inundation need to be investigated. This study aims to determine the growth response of oil palm seedlings in peat with some duration of flooding. The research was conducted in the experimental farm of the Faculty of Agriculture, University of Musi Rawas at an altitude of 110 m above sea level on March to June 2014. This study used a randomized block design (RBD) consists of six treatments and four replications. Treatment includes without flooding, duration of flooding 10, 20, 30, 40 and 50 days. The results showed that oil palm seedlings can survive up to 50 days of flooding. Long flooding inhibits the growth of plant height, number of leaves, reducing the amount of leaf chlorophyll. flooding also causes morphological changes in the root of the formation of adventitious shoots.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-12-11 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/5433
Ilmu Pertanian (Agricultural Science); Vol 18, No 3 (2015): December
ind
Copyright (c) 2016 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/5638
2016-10-14T04:07:38Z
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oai:jurnal.ugm.ac.id:article/5685
2016-12-09T04:21:35Z
jip:ART
nmb a2200000Iu 4500
"141219 2014 eng "
2527-7162
0126-4214
dc
Pemetaan Lahan Kritis di Kawasan Muria untuk Meningkatkan Daya Dukung Lingkungan yang Berbasis pada Sistem Informasi Geografis (SIG)
Hendro , Zed Nadhi, Sri Budiastuti, Djoko Purnomo, Hendy
Pemetaan dan Invetarisasi Lahan Kritis Kawasan Muria dimaksudkan untuk menyusun sistem database sebagai ruang pengalokasian data-data tentang lahan kritis di Kawasan Muria. Mengingat dikawasan Muria saat ini luasan lahan kritis yang ada cukup besar dan apabila dibiarkan dan tidak ditangani akan mengakibatkan terjadinya penurunan daya dukung lingkungan. Di dalam pembuatan pemetaan Lahan kritis ini digunakan perangkat lunak berbasis sistem informasi geografis (GIS). Database sarana dan prasarana bidang lahan kritis tersebut dikelola dalam sistem informasi yang dapat divisualisasikan dan di update, sehingga mudah disimpan dan digunakan untuk berbagai keperluan sesuai dengan kebutuhan.Metode kerja yang dilakukan untuk analisa lahan kritis adalah berdasarkan atas Petunjuk Teknis Penyusunan Data Spasial Lahan Kritis tahun 2004 oleh Direktorat Jenderal Rehabilitasi Lahan dan Perhutanan Sosial (RLPS) dan Surat Direktur Jenderal RLPS No. S.296/V-SET/2004 tanggal 5 Oktober 2004.
Kata kunci : pemetaan, kritis, Kawasam Muria, database
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2014-06-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/5685
Ilmu Pertanian (Agricultural Science); Vol 17, No 1 (2014): Juni
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/6169
2016-12-09T04:21:35Z
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"150508 2015 eng "
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Efisiensi Relatif Usahatani Bawang Merah di Kabupaten Bantul dengan Pendekatan Data Envelopment Analysis (DEA)
Lawalata, Dwidjono Hadi Darwanto, dan Slamet Hartono, Marfin
Fakultas Pertanian, Universitas Gadjah Mada
Penelitian ini bertujuan mengetahui tingkat efisiensi teknis usahatani bawang merah di Kabupaten Bantul dan faktor-faktor yang mempengaruhi. Metode penelitian menggunakan analisis DEA (Data Envelopment Analysis) dengan asumsi output oriented digunakan untuk mengukur skor efisiensi dari masing-masing usahatani yang diamati. Selanjutnya menggunakan analisis regresi Ordinary Least Squares (OLS) untuk menganalisis faktor-faktor yang mempengaruhi tingkat efisiensi teknis usahatani bawang merah di Kabupaten Bantul.. Hasil penelitian menunjukkan bahwa sebagian besar usahatani bawang merah di Kabupaten Bantul masuk dalam kategori inefisien. Berdasarkan perhitungan DEA-CRS, sebanyak 11 (18,33%) usahatani bawang merah telah efisien, sedangkan dengan perhitungan DEA VRS sebanyak 18 (30%) usahatani bawang merah telah efisien. Luas lahan, umur petani, pendidikan, dan pengalaman usahatani memiliki pengaruh dan signifikan terhadap tingkat efisiensi teknis
Kata Kunci : Efisiensi Relatif, DEA
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6169
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/6170
2016-12-09T04:21:35Z
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nmb a2200000Iu 4500
"150508 2015 eng "
2527-7162
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A Study of Carbon Dioxide Emission in Different Types of Peatland Use in Kalimantan
Rumbang, Nyahu
Faculty of Agriculture, Gadjah Mada University
Study of carbon dioxide emissions in different types of peatlands use in Central and West Kalimantan has been conducted in January-June 2006 and January-April 2007. The study represents 4 types of land use in Central Kalimantan as treatment: 5 years for chinesse cabbage, 10 years for chinesse cabbage, 5 years for sweet corns, and 10 years for sweet corns. As for the treatments in West Kalimantan, they include corn field, Aloe vera field, oil palm plantation, and rubber plantation. Carbon dioxide was measured using infrared gas analysis (model EGM-4, PP systems, Hitchin, UK). In Central Kalimantan, the highest CO2 is emitted from sweet corn plants (arable land for 10 years) by 0.79 g CO2/m2/hour, chinesse cabbage plants (for 5 years) by 0.73 g CO2/m2/hour, chinesse cabbage plants (for 10 years) by 0.67 g CO2/m2/hour and, the least, sweet corn plants (for 5 years) by 0.41 g CO2/m2/hour. The highest CO2 emission from West Kalimantan is released from rubber plants at 1.22 g CO2/m2/hour, followed by palm oil plants by 0.96 g CO2/m2/hour, Aloe vera plants by 0.68 g CO2/m2/hour and corn plants by 0.35 g CO2/m2/hour. Groundwater table depth are the most important factors among other factors that influence CO2 emissions. Groundwater table depth indicated a positive correlation with CO2 emissions in all types of peatlands use. C-organic production of sweet corn plants at 11.66 t C/ha/year is higher than that of chinesse cabbage plants at 1.64 t C/ha /year. Corn plants produce organic-C was 11.66 t C/ha/year, equivalent to the amount of loss of C through CO2 emissions by 11.29 t C/ha/year.
Keywords: peat, types of land use, carbon, CO2 emission
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6170
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/6171
2016-12-09T04:21:35Z
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nmb a2200000Iu 4500
"150508 2015 eng "
2527-7162
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Pengaruh Jenis Pupuk dan Tinggi Genangan Air Terhadap Perkembangan Populasi Wereng Batang Padi Cokelat pada Tanaman Padi
H. Kadja, Don
Fakultas Pertanian Universitas Nusa Cendana, NTT
Penelitian ini telah dilakukan menggunakan kombinasi 2 faktor: jenis pupuk (kompos gulma siam dan pupuk konvensional), dan tingkatan pengairan (air tergenang terus-menerus (5 cm), air macak-macak (0 cm), dan intermitten. Hasil penelitian menunjukkan bahwa secara umum perlakuan dengan kompos gulma siam memberikan hasil yang lebih baik dibandingkan dengan penggunaan pupuk konvensional. Perlakuan kompos dengan sistem pengairan macak-macak memberikan hasil yang terbaik pada semua perlakuan yang diberikan, walaupun menunjukkan perbedaan yang nyata hanya pada variabel berat basah tanaman (66 ± 4, 50 g), lama hidup nimfa dan imago Nilaparvata lugens. Lama hidup nimfa yang paling panjang terdapat pada perlakuan kompos macak (21,33 ± 3,21 hari), walaupun tidak berbeda secara nyata dengan perlakuan yang lain, namun berbeda secara nyata dengan perlakuan konve genang (14,67 ± 0,58 hari). Pada stadia imago lama hidup yang paling singkat adalah pada perlakuan kompos macak (9,33 ± 0,58 hari) dan yang paling panjang adalah pada perlakuan konve genang (14,67 ± 2,08 hari).
Kata Kunci: Nilaparvata lugens, pupuk, tinggi genangan
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6171
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
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oai:jurnal.ugm.ac.id:article/6173
2016-12-09T04:21:35Z
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"150508 2015 eng "
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Permintaan Gula Kristal Mentah Indonesia
Indah Kurniasari, Dwidjono Hadi Darwanto, dan Sri Widodo, Rutte
Penelitian ini bertujuan untuk mengetahui faktor-faktor yang mempengaruhi permintaan gula kristal mentah impor dan memproyeksikan permintaan gula kristal mentah di masa yang akan datang. Metode penelitian yang dipergunakan adalah metode analisis regresi Ordinary Least Square (OLS) untuk mengetahui faktor-faktor yang mempengaruhi permintaan gula kristal mentah impor. Selanjutnya digunakan analisis trend untuk mengetahui kecenderungan trend permintaan gula kristal mentah impor dimasa yang akan datang. Hasil penelitian menunjukkan bahwa faktor yang berpengaruh secara signifikan terhadap permintaan gula kristal mentah impor adalah produksi gula kristal putih Indonesia, konsumsi gula nasional dan harga gula kristal mentah dunia. Impor gula kristal mentah akan terus meningkat per tahunnya seiring dengan meningkatnya jumlah konsumsi gula nasional, selama Indonesia tidak berupaya untuk mulai memproduksi gula kristal mentahnya sendiri. Trend impor gula kristal mentah oleh Indonesia cenderung naik atau meningkat dari tahun ke tahun. Berdasarkan hasil analisis trend, dapat diperkirakan bahwa Indonesia pada tahun 2020 jumlah impor gula kristal mentahnya bisa mencapai 1.219.979 ton.
Kata Kunci: Analisis Regresi, Tren Analisis, Gula Kristal Mentah Impor
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6173
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
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oai:jurnal.ugm.ac.id:article/6174
2016-12-09T04:21:35Z
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"150508 2015 eng "
2527-7162
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Penggunaan Fungsi Pedotransfer untuk Memperkirakan Permeabilitas Tanah di Sumatera Selatan dan Riau
Harum Maharani, Bambang Hendro Sunarminto, dan Eko Hanudin, Puspita
Penelitian ini bertujuan untuk menduga nilai permeabilitas tanah dalam keadaan jenuh di Sumatera Selatan dan Riau dari tekstur tanah, porositas dan kedalaman tengah profil. Permeabilitas tanah dalam keadaan jenuh merupakan salah satu parameter sifat fisik tanah untuk memprediksi pergerakan air di dalam tanah dan zat terlarut yang berada dalam air tanah. Sebagian besar data permeabilitas tanah yang dianalisis di laboratorium dianggap tidak praktis, membutuhkan banyak waktu dan biaya. Permeabilitas tanah dalam keadaan jenuh berhubungan erat dengan kandungan fraksi lempung,porositas dan kedalaman tengah horizon. Penelitian ini dilakukan menggunakan 78 set tanah dari Palembang, Provinsi Sumatera Selatan dan Pekanbaru Provinsi Riau pada Mei 2012 sampai juni 2013 dan dianalisis di laboratorium menggunakan alat permeameter. Hasil penelitian menunjukkan mendekati keberhasilan pada pendugaan nilai permeabilitas tanah dalam keadaan jenuh dari data kandungan fraksi lempung, porositas dan kedalaman tengah horizon. Hasil yang diperoleh dari hubungan linier berganda pada data dengan R2 = 0,675. Persamaan regresi linier berganda Log Ks = -7,245 + 0,077 clay + 0,084 porositas - 0,011 kedalaman tengah horizon.
Pada persamaan regresi Log Ks di dapatkan lempung merupakan fraksi penyusun tekstur tanah, porositas merupakan sifat fisika tanah yang menggambarkan struktur tanah dan kedalaman tengah pada tiap horizon tanah merupakan kedalaman horizon pada tiap lapisannya, dan permeabilitas tanah dinyatakan dalam satuan cm/jam. Hasil analisis regresi menunjukkan bahwa kandungan clay memberikan hasil yang paling signifikan terhadap permeabilitas tanah dalam keadaan jenuh dan faktor kandungan clay merupakan parameter yang paling efektif terhadap perhitungan permeabilitas tanah dalam keadaan jenuh.
Kata kunci : Permeabilitas tanah dalam keadaan jenuh, kandungan fraksi clay, porositas, kedalaman tengah profil
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6174
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
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oai:jurnal.ugm.ac.id:article/6175
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Keragaman dan Kelimpahan Musuh Alami Hama pada Habitat Padi yang Dimanipulasi dengan Tumbuhan Berbunga
Kurniawati, Nia
Balai Penelitian Padi, Sukamandi
Penelitian lapangan secara terbatas telah dilakukan untuk mengetahui dampak keberadaan tumbuhan berbunga pada kelimpahan dan keragaman artropoda termasuk serangga musuh alami padi. Dua perlakuan, yaitu ditambah tumbuhan berbunga dan tanpa tumbuhan berbunga diaplikasikan di lahan penelitian Fakultas Pertanian UGM di Banguntapan, Bantul, Yogyakarta, dan masing-masing perlakuan diulang tiga kali. Hasil penelitian menunjukkan bahwa tumbuhan berbunga meningkatkan keragaman artropoda termasuk serangga musuh alami secara signifikan, serta memberikan hasil padi yang cenderung lebih tinggi, di samping juga mampu menurunkan insiden serangan hama, misalnya penggerek batang padi.
Kata Kunci : tumbuhan berbunga, musuh alami, keragaman, kelimpahan
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6175
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
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oai:jurnal.ugm.ac.id:article/6176
2016-12-09T04:21:35Z
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Pengaruh Irradiasi Sinar Gammapada Pertumbuhan Kalusdan Tunas Tanaman Gandum (Triticum aestivum L.)
Sari, Agus Purwito, Didy Sopandie, Ragapadmi Purnamaningsih, dan Enny Sudarmanowa, Laela
Tujuan utama pemuliaan tanaman adalah memperbaiki varietas yang sudah ada guna mendapatkan varietas yang lebih baik atau unggul. Tujuan dari penelitian ini adalah untuk mengetahui kisaran Lethal Dosis 20 (LD20) dan 50 (LD50) pada kalus gandum varietas Dewata yang diradiasi sinar gamma. Keberhasilan perlakuan irradiasi sinar gamma sangat ditentukan oleh sensitivitas genotipe tanaman. Penelitian ini dilakukan mulai bulan Juli-Desember 2011 di Laboratorium kultur BB-Biogen dan PATIR BATAN. Percobaan disusun secara faktorial dalam lingkungan Rancangan Acak Lengkap 1 x 4, dengan 3 ulangan. Faktor pertama adalah genotipe gandum Dewata. Faktor kedua adalah dosis irradiasi sinar gamma yaitu 0; 7,5; 15; 22,5; dan 30 Gy. Peubah yang diamati pertumbuhan kalus dan persentase tumbuh tunas. Data dianalisis menggunakan Program SAS 9.1. LD20 dan LD50 ditentukan menggunakan Program Best Curve-fit Analysis. Hasil penelitian menunjukkan bahwa dosis irradiasi berpengaruh nyata terhadap penghambatan pertumbuhan kalus gandum. Persentase hiduptunasmenurun sejalan dengankenaikan dosis irradiasi.Kelangsungan hiduptunasmenurun drastis bahkan tidak tumbuh sama sekali dan berwarna albino pada dosis 30 Gy. Persentase hidup tunas tertinggi pada dosis 15 Gy. Persentase tumbuh kalus tertinggi terdapat pada dosis 7,5 Gy. Semakin tinggi dosis iradiasi yang digunakan, maka persentase tunas yang tumbuh semakin sedikit atau daya regenerasi semakin rendah. Peningkatan keragaman genetik kalus gandum terdapat pada perlakuan irradiasi antara LD 20 dan LD 50 yaitu dosis iradiasi sinar gamma 15 – 22.5 Gy. Model dosis lethal terbaik untuk pertumbuhan kalus berbentuk kuadratik dengan persamaan Y = 86,28 – 6,47 x + 0,13 x2, LD20 = 0,99 Gy dan LD50 = 6,41 Gy. Sedangkan untuk persentase kalus yang bertunas dan mampu bergenerasi mempunyai persamaan berdasarkan persentase tumbuh kalus Y = 100,28 – 0,87x - 0,05 x2, LD20 = 13,14 Gy dan LD50 = 24,00 Gy.
Kata kunci: Gandum (Triticum aestivum), lethal dosis, irradiasi sinar gamma.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6176
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
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oai:jurnal.ugm.ac.id:article/6177
2016-12-09T04:21:35Z
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Pendugaan Komponen Ragam, Heritabilitas dan Korelasi Klon-Klon Harapan Ubijalar Berkadar Betakaroten Tinggi
Rahajeng dan St. A. Rahayuningsih, Wiwit
Balai Penelitian Tanaman Aneka Kacang dan Umbi, Malang-Indonesia
Ubijalar berkadar betakaroten tinggi mempunyai peranan penting dalam program diversifikasi dan ketahanan pangan. Informasi mengenai komponen ragam, heritabilitas, korelasi, dan path analisis diantara karakter kuantitatif dengan hasil umbi penting untuk mendukung program seleksi dalam pengembangan varietas ubijalar berkadar beta karoten tinggi. Tujuan dari penelitian ini adalah untuk mengestimasi ragam genetik, heritabilitas, korelasi, dan path analisis pada karakter agronomi untuk menentukan kriteria seleksi klon-klon ubijalar berkadar betakaroten tinggi. Penelitian dilaksanakan pada bulan April—Agustus 2013, di Srengat, Blitar. Bahan yang digunakan adalah 26 klon ubijalar berkadar beta karotin tinggi. Penelitian disusun dalam rancangan acak kelompok (RAK) dengan tiga ulangan. Hasil penelitian menunjukkan semua karakter mempunyai nilai heritabilitas arti luas yang tinggi kecuali jumlah umbi perplot. Ragam genetik yang luas ditunjukkan oleh semua karakter yang diamati. Berdasarkan nilai heritabilitas, ragam genetik, korelasi, dan path analisis karakter yang dapat digunakan sebagai kriteria seleksi klon-klon ubijalar berkadar betakaroten tinggi pada penelitian ini adalah bobot umbi per plot.
Kata kunci: ubijalar, komponen ragam, heritabilitas, korelasi, path analisis
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6177
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
Copyright (c)
oai:ojs.journal.ugm.ac.id:article/6178
2015-05-22T03:55:30Z
jip:ART
oai:jurnal.ugm.ac.id:article/6504
2016-12-09T04:21:35Z
jip:ART
nmb a2200000Iu 4500
"150618 2015 eng "
2527-7162
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Induksi Partenokarpi Pada Tiga Genotipe Tomat Dengan GA3
Agung Adnyesuari, Rudi Hari Murti, dan Suyadi Mitrowihardjo, Anak
Faperta UGM
Buah tomat pertenokarpi (tanpa biji) sangat sesuai sebagai bahan utama dalam industri pengolahan tomat agar efisiensi waktu, tenaga dan biaya. Penelitian bertujuan untuk mengetahui efek penyemprotan (konsentrasi-frekuensi) GA3 terhadap partenokarpi dan karakteristik buah tomat. Penelitian dilaksanakan dengan perlakuan penyemprotan GA3 yaitu ppm (K0), 20 ppm sekali semprot (K1), 30 ppm sekali semprot (K2), 20 ppm tiga kali semprot (K3) dan 30 ppm tiga kali semprot (K4), pada Gamato 3 (V1), ‘Kaliurang 206’ (V2) dan ‘Intan’ (V3). Larutan GA3 disemprotkan pada tandan bunga satu hari sebelum bunga pertama mekar pada setiap tandan. GA3 disemprotkan selang tiga hari sekali untuk tiga kali penyemprotan. Perlakuan diatur dalam Rancangan Acak Kelompok Lengkap (RAKL) dengan tiga blok. Data dianalisis dengan analisis varian model kontras orthogonal dengan tingkat kepercayaan 95% menggunakan perangkat lunak SAS 9.1. Hasil penelitian menunjukkan penurunan jumlah biji per buah dipengaruhi oleh genotipe. Gamato 3 merupakan genotipe yang paling responsif dengan menghasilkan biji/buah mendekati nol. Penyemprotan GA3 20 ppm tiga kali telah mencukupi untuk menghasilkan buah tanpa biji pada Gamato 3. Penyemprotan GA330 ppm tiga kali meningkatan kadar PTT namun cenderung menurunan ukuran dan kekerasan buah.
Kata kunci : GA3, jumlah biji, padatan terlarut total, partenokarpi, tomat
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-04-22 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6504
Ilmu Pertanian (Agricultural Science); Vol 18, No 1 (2015): April
eng
Copyright (c)
oai:jurnal.ugm.ac.id:article/6521
2016-12-09T04:21:36Z
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Setiawan, Agus Budi
GADJAH MADA UNIVERSITY
Murti, Rudi Hari
https://www.researchgate.net/profile/Rudi_Murti?_sg=w7qsTJQoVRC8cw2rGVtqQVr584Uea-6OAYW0nY5lT9LyTo_ESViyRsb5LcLwnooLe8HWCp4YAmAU054aO0oGHw
Purwantoro, Aziz
https://www.researchgate.net/profile/Aziz_Purwantoro2
Giberelin merupakan zat pengatur tumbuh yang berperan dalam pertumbuhan dan perkembangan buah tomat. Buah partenokarpi dapat diinduksi dengan menggunakan giberelin. Penelitian ini bertujuan untuk menentukan respon tujuh genotipe tomat terhadap GA3 terkait karakter fruit set, ukuran, dan hasil buah tomat. Penelitian ini dilakukan di Green House UPTD Balai Pengembangan Perbenihan Tanaman Pangan dan Hortikultura, Dinas Pertanian Pemerintah Daerah Istimewa Yogyakarta serta Laboratorium Genetika dan Pemuliaan Tanaman, Fakultas Pertanian, UGM mulai bulan Oktober 2014 hingga Februari 2015. Penelitian menggunakan rancangan faktorial 7 genotipe x 2 konsentrasi GA3 yang disusun dalam rancangan acak kelompok lengkap dengan 3 blok. Kluster bunga dengan bunga pertama fase 12 yang tidak dikastrasi disemprot GA3 dengan interval 3 hari sekali sebanyak 6 kali. Hasil penelitian menunjukkan bahwa B78 merupakan genotipe yang responsif terhadap GA3
dengan ditandai dengan peningkatan jumlah lokul menjadi 6 (lokul/buah) dan
mengalami penurunan fruit set sebesar 81,96% serta ukuran buah yang menurun secara nyata dibandingkan dengan buah berbiji. Genotipe yang tanggap terhadap aplikasi GA3 untuk menginduksi buah partenokarpi dengan hasil dan ukuran buah yang bagus adalah Gamato 1 ditandai dengan penurunan bobot buah per tandan yang relatif kecil yaitu 28,38% serta buah partenokarpi yang dihasilkan memiliki ukuran panjang dan diameter buah yang masih jauh lebih besar (41,68 mm dan 46,11 mm) dibandingkan genotipe lainnya. Buah partenokarpi A65, Gamato 3, A175, Gamato 5 dan Kaliurang 206 mengalami penurunan ukuran (panjang, diameter, dan ketebalan daging buah) serta penurunan hasil buah tomat dibandingkan dengan buah berbiji.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-08-01 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/6521
Ilmu Pertanian (Agricultural Science); Vol 18, No 2 (2015): August
ind
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/7919
2016-12-09T04:21:36Z
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"151211 2015 eng "
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Yuwono, Purwito Djoko
Universitas Gadjah Mada
Murti, Rudi Hari
Basunanda, Panjisakti
Penelitian ini mengevaluasi keragaman genetik dua puluh galur inbred jagung manis populasi S7. Tujuan penelitian ini adalah untuk mendapatkan informasi keragaman genetik dua puluh galur inbred, heritabilitas dalam arti luas, korelasi genetik dan analisis lintasan, dan jarak genetik antar galur inbred jagung manis. Percobaan lapangan menggunakan rancangan acak kelompok lengkap dengan perlakuan dua puluh galur inbred dan tiga ulangan. Analisis data menggunakan ANOVA, korelasi genetik, dan analisis klaster. Koefisien keragaman genetik yang diperoleh mengindikasikan adanya keragaman genetik antar galur yang diuji. Heritabilitas menunjukkan nilai yang tinggi pada semua variabel kecuali jumlah baris biji. Karakter panjang tongkol dan diameter tongkol memiliki korelasi dan pengaruh langsung yang tinggi terhadap bobot tongkol. Analisis klaster menghasilkan tiga kelompok pada nilai koefisien similarity 70%. Kelompok yang memiliki koefisien similarity paling rendah memiliki jarak genetik terjauh dan dianjurkan sebagai tetua untuk pembuatan hibrida dengan heterosis tinggi.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-12-11 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/7919
Ilmu Pertanian (Agricultural Science); Vol 18, No 3 (2015): December
ind
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/8600
2016-12-09T04:21:36Z
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"160201 2016 eng "
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Hairmansis, Aris
Balai Besar Penelitian Tanaman Padi
Salah satu indikator keberhasilan program pemuliaan adalah diadopsinya varietas unggul oleh petani. Meskipun pemulia memiliki kemampuan untuk memilih varietas-varietas terbaik, selera petani terhadap varietas unggul dapat berbeda dan sangat beragam antar daerah. Program seleksi varietas partisipatif (participatory varietal selection=PVS) dikembangkan untuk meningkatkan efisiensi seleksi yang dilakukan pemulia dengan melibatkan petani sebagai pengguna akhir produk pemuliaan dalam proses seleksi. Dua kegiatan seleksi varietas partisipatif dilakukan pada musim hujan 2012-2013 di dua sentra padi gogo yakni Cianjur (Jawa Barat) dan Kebumen (Jawa Tengah). Sepuluh galur harapan padi gogo dan empat varietas unggul pembanding digunakan dalam kegiatan PVS. Masing-masing galur atau varietas ditanam oleh seorang petani kooperator dengan luas tanam 2000 m2 sampai 2500 m2. Budidaya padi dilakukan oleh petani berdasarkan paket rekomendasi dari peneliti. Seleksi dilakukan pada saat menjelang panen dengan melibatkan sebanyak 20 sampai 22 orang petani di masing-masing lokasi. Hasil PVS menunjukkan keragaman preferensi petani di dalam dan antar daerah. Hasil penelitian ini mengindikasikan adanya kesesuaian antar nilai preferensi varietas hasil seleksi petani dengan nilai penerimaan fenotipe oleh pemulia. Namun demikian tidak semua genotipe dengan nilai preferensi yang tinggi menghasilkan gabah yang tinggi, mengindikasikan bahwa komponen hasil bukan satu-satunya penentu preferensi petani dalam mengadopsi varietas unggul. Dampak dari pelaksanaan PVS terhadap adopsi varietas unggul, peningkatan keragaman genetik di lapang dan sarana penyebaran benih informal didiskusikan dalam tulisan ini.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-08-01 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/8600
Ilmu Pertanian (Agricultural Science); Vol 18, No 2 (2015): August
ind
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/8654
2016-12-09T04:21:37Z
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"151211 2015 eng "
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The Relationships Among Physiological Characters and Productivities of Nine PGL Clones in Medium Land
Irmayanti, Ika
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Indradewa, Didik
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada http://www.faperta.ugm.ac.id/buper/staf/edu/didik-indradewa/
Putra, Eka Tarwaca Susila
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada https://scholar.google.co.id/citations?user=t29e7O8AAAAJ&hl=en&oi=ao
PGL clones, physiological character, and productivity
The objectives of the study were to determine the relationships among the physiological characters and productivities of nine PGL clones in medium land. Field trial was arranged in a Randomized Complete Block Design (RCBD) single factor with three blocks as replications. The treatment was PGL clones, consisting of nine clones, namely PGL 1 PGL 3, 4 PGL, PGL 7, PGL 10, PGL 11, PGL 12, PGL 15, and PGL 17. The observations were done on several variables of physiological characters and productivities. Data were analyzed by using the Analysis of Variance (ANOVA) at 5% levels. If there were significant differences among the treatments, they will be analysed by Duncan Multiple Range Test (DMRT). The relationships among variables were determined using correlation analysis. Results showed that there were wide variations in the stomatal density and width openings and also productivities among the nine PGL clones. Stomatal density and width openings have significant positive correlation with the productivity. PGL 12 and 15 with a denser of stomatal arrangement and wider stomatal openings have higher productivities when compared to other PGL clones, especially PGL 7 with the most loosely stomatal arrangement and narrower stomatal openings.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-12-11 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/8654
Ilmu Pertanian (Agricultural Science); Vol 18, No 3 (2015): December
eng
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9087
2016-12-09T04:21:36Z
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"160201 2016 eng "
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Listia, Eka
Agriculture Faculty, Universitas Gadjah Mada
Indradewa, Didik
http://www.faperta.ugm.ac.id/buper/staf/edu/didik-indradewa/
Putra, Eka Tarwaca Susila
https://scholar.google.co.id/citations?user=t29e7O8AAAAJ&hl=en&oi=ao
Penelitian ini bertujuan untuk mengetahui pertumbuhan, produktivitas dan rendemen minyak kelapa sawit yang ditanam pada dataran tinggi. Penelitian dilaksanakan pada empat lokasi penelitian dengan ketinggian tempat 50, 368, 693 dan 865 m dpl yang berada di wilayah Sumatera Utara. Penelitian disusun dalam Rancangan Acak Kelompok menggunakan kelapa sawit jenis tenera pada kelompok tanaman muda yang berumur 7 – 8 tahun. Hasil penelitian menunjukkan bahwa pertumbuhan tanaman kelapa sawit di dataran tinggi yang meliputi panjang rachis, indeks luas daun, bobot kering daun, tinggi tanaman, volume batang dan bobot kering batang memiliki nilai lebih tinggi dibandingkan tanaman kelapa sawit di dataran rendah. Produktivitas tertinggi mencapai 28,5 ton TBS/ha/tahun pada penanaman kelapa sawit di ketinggian 368 m dpl. Rendemen minyak tertinggi 25,9% dicapai pada ketinggian tempat 50 m dpl. Kandungan karoten tertinggi 590,8 ppm dan nilai indeks panen tertinggi 0,39 dicapai oleh tanaman kelapa sawit di dataran rendah dengan ketinggian 368 m dpl.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-08-01 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9087
Ilmu Pertanian (Agricultural Science); Vol 18, No 2 (2015): August
ind
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9088
2016-12-09T04:21:36Z
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Wardhika, Citra Mayang
Agriculture Faculty, Universitas Gadjah Mada
Tebu merupakan salah satu komoditas perkebunan penting bagi perekonomian nasional dan berperan dalam mendorong pengembangan wilayah dan agroindustri. Indonesia telah mencanangkan untuk swasembada gula, sehingga peningkatan produksi tebu yang merupakan salah satu bahan pokok gula, harus dilakukan. Mikoriza merupakan suatu bentuk hubungan simbiosis mutualistik antara jamur dan perakaran tumbuhan tingkat tinggi. Jamur Mikoriza Arbuskular (JMA) dapat mempercepat laju pertumbuhan, meningkatkan kualitas dan daya hidup bibit tanaman dan meningkatkan pertumbuhan dan produktivitas tanaman lahan kritis. Penelitian ini meliputi identifikasi jenis JMA yang paling dominan pada semua isolat yang diperoleh dari rizosfer tebu, perbanyakan starter inokulum JMA, dan inokulasi pada bibit tebu. Hasil isolasi JMA dari berbagai lokasi, diperoleh 6 genus JMA, yaitu: Glomus, Gigaspora, Acaulospora, Scutellospora, Entrophospora, dan Sclerocystis. Genus Glomus merupakan genus yang dominan dan digunakan dalam pengujian selanjutnya. Hasil uji infektivitas dengan menggunakan klon tebu PS 862 menunjukkan bahwa isolat PKP, MS, KLT, dan BTG yang masing-masing berasal dari Kulon Progo, Sleman, Klaten, dan Batang menunjukkan infektivitas yang paling tinggi dan dapat dijadikan kandidat bahan pupuk hayati. Penambahan JMA pada bibit tebu dapat mengurangi intensitas penyakit karat jingga; penyakit utama pada bibit tebu, yang berarti JMA berpotensi sebagai agens pengendali hayati.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-08-01 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9088
Ilmu Pertanian (Agricultural Science); Vol 18, No 2 (2015): August
ind
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9090
2016-12-09T04:21:36Z
jip:ART
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"160201 2016 eng "
2527-7162
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Efisiensi Teknis Usahatani Kopi Arabika di Kabupaten Enrekang
Thamrin, Syahruni
Agriculture Faculty, Universitas Gadjah Mada
Penelitian ini bertujuan untuk mengetahui efisiensi teknis usahatani kopi arabika di Kabupaten Enrekang. Populasi dari penelitian ini adalah petani kopi arabika, jumlah sampel dalam penelitian ini sebanyak 100 orang. Analisis dilakukan dengan analisis deskriptif kualitatif, analisis efisiensi teknis dan inefisiensi teknis. Estimasi dilakukan dengan menggunakan fungsi produksi frontir stokastik. Faktor-faktor yang berpengaruh sangat nyata pada efisiensi teknis kopi adalah luas lahan, penggunaan pupuk Urea, ZA dan tenaga kerja. Rata-rata efisiensi teknis petani responden adalah 0,89. Berarti petani telah efisien secara teknis khususnya dalam mengalokasikan sumberdaya dan memanfaatkan teknologi budidaya yang ada. Sementara itu hasil estimasi dengan menggunakan metode MLE, variable yang signifikan dan berkorelasi negatif adalah jumlah anggota keluarga.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-08-01 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9090
Ilmu Pertanian (Agricultural Science); Vol 18, No 2 (2015): August
eng
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9091
2016-12-09T04:21:36Z
jip:ART
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"160201 2016 eng "
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Nurdiani, Ulfah
Agriculture Faculty, Universitas Gadjah Mada
The purposes of this study were: (1) To identify the level of onion farmers entrepreneurship in Bantul district, (2) To determine the influence of individual factors, physical, social, economic and institutional environment on the level of farmers entrepreneurship and performance of red onion farming in Bantul district, and (3) To determine the effect of the level farmers entrepreneurship on performance of red onion farming in Bantul district. The method study uses descriptive analytical, which analyzed the data further to find a relationship or ratio between the variables in the theoretical framework of thinking. Data collection using questionnaires previously tested the validity of using Product Moment Correlation and reliability testing using Cronbach Alpha coefficients. Data analysis techniques broadly consists of three stages: a preliminary analysis to calculate individual farm performance indicators (produtifitas, revenue and Private Cost Ratio), descriptive analysis of the percentage of the study variables and analysis of structural equation model (SEM). The research results showed that the level of red onion farmers entrepreneurship in Bantul categorized high with an overall average percentage of 70.87%. Individual factors, physical, social, economic and institutional environment positive and significant impact on the farmers entrepreneurship and performance of farming. The factor that has the greatest positive effect of individual factors followed by the institutional environment. The physical environment and the economy have the same magnitude, while the smallest is the social environment influences. Farmer entrepreneurship positive effect on farm performance and has an important role in mediating the influence of individual and environmental factors on farm performance. These results provide evidence for the idea that entrepreneurial farmers is something that can be grown and can be considered to be a new approach in improving farm performance
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-08-01 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9091
Ilmu Pertanian (Agricultural Science); Vol 18, No 2 (2015): August
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Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9092
2016-12-09T04:21:36Z
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"160201 2016 eng "
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Jayanti, Kamelia Dwi
Agriculture Faculty, Universitas Gadjah Mada
Perubahan pola curah hujan di Indonesia telah terjadi sejak beberapa decade terakhir. Perubahan ini menyebabkan terjadinya pergeseran musim di beberapa daerah. Tanaman tebu (Saccharum officinarum L.) merupakan tanaman yang membutuhkan banyak air pada fase vegetative tetapi membutuhkan kondisi kering ketika menjelang panen. Penentuan masa tanam yang kurang tepat dapat menurunkan hasil produksi bahkan gagal panen. Penelitian penentuan masa tanam tebu dilakukan di Kecamatan Kalasan, Sleman. Daerah ini merupakan lahan tadah hujan. Curah hujan sangat berpengaruh terhadap ketersediaan lengas tanah pada lahan tadah hujan. Data yang digunakan dalam penelitian ini adalah data curah hujan bulanan selama 10 tahun terakhir (2002 -2011), suhu, kelembaban, kecepatan angin, lama penyinaran, sifat fisik tanah dan data tanaman. Penelitian ini didahului dengan membangkitkan data curah hujan bulanan 10 tahun ke depan (2012-2022) dengan menggunakan model Thomas-Fiering. Data curah hujan bangkitan ini digunakan untuk membuat neraca air. Neraca air menggambarkan kondisi surplus dan defisit ketersediaan lengas tanah. Data analisis neraca air menunjukkan bahwa masa tanam tebu yang tepat adalah September- Agustus dan Oktober-September.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-08-01 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9092
Ilmu Pertanian (Agricultural Science); Vol 18, No 2 (2015): August
ind
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9139
2017-08-17T04:31:43Z
jip:ART
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"160817 2016 eng "
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Pratama, Vanindyantara Nugra
This research aims to study the result of proper glyphosate and paraquat application and tillage system as weed controller and to get the proper herbicide application timing and soil tillage system for increased growth and yield of tobacco. The research was conducted in Pakel Village, Sumberpucung District, Malang Regency in July-October 2014. Method used in the research was Split-Plot design with 2 levels of tillage system as main plot and 6 levels of application herbicide timing as sub-plot with 3 replications. Glyphosate application before planting increased growth factor of tobacco i.e. number of leaves, plant height, and leaf area. Glyphosate application before tillage and planting increased yield factor of tobacco i.e. fresh weight of roots and stems, fresh weight of leaves, dry weight of chopped tobacco, and nicotine content.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-17 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9139
Ilmu Pertanian (Agricultural Science); Vol 1, No 2 (2016): August
ind
Copyright (c) 2016 Jurnal Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9202
2017-08-30T05:10:48Z
jip:ART
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"170830 2017 eng "
2527-7162
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Yusiana, Eka Lia
Hartono, Slamet
Irham, Irham
This study amis at determining factors that become source of yard farming inefficiency of both KRPL farmers (those who participated in Sustainable Food House Area program) and non KRPL farmers in Kulon Progo. Data Envelopment Analysis (DEA) was used with input and output-oriented assumptions to measure the efficiency score of yard farming observed. This Study showed that the sources of inefficiency in the yard farming were the excessive use of labor, cost and land area. Therefore, it should be adjusted with the number of workers to be reduced by 32%, farming cost by 31%, and the land area by 39%. Meanwhile, the output approach must be adjusted by adding 0.8% output for production and 1.17% for income.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9202
Ilmu Pertanian (Agricultural Science); Vol 1, No 3 (2016): December
ind
Copyright (c) 2016 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9240
2017-08-30T05:10:48Z
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"170830 2017 eng "
2527-7162
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Performance Evaluation and Optimum Portfolio Allocation for Stocks of Agribusiness and Non-Agribusiness Companies in ILQ45
Nurhayati, Azizatun
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Suryantini, Any
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Jamhari, Jamhari
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
DEA; Farming Efficiency; KRPL
Investors need fundamental aspects to allocate their fund in a set of efficient portfolio to maximize their yield. One of many fundamental aspecs is risk and return stocks price analysis. There were some agribusniness companies and non-agribusiness companies listed in ILQ45. This study was aimed to know stock performance of agribusiness companies compared with non-agribusiness companies which were listed in Index Liquid 45 in Indonesia Stock Exchange and to allocate optimum portfolio with cut off point method and randomly designed methode. Data of monthly from August 2011-December 2015 was used in this study. The result showed that range of return of agribusiness companies was -13.24% up to 20.098% and non-agribusiness was 49.50% up to 10.39%. Range of standard deviation for agribusiness companies was 6.43%-14.36% and 5.87-15.54% for non-agribusiness. Range of positive coefficient of variance (CV) for agribusiness was 3.59-18.61 and 5.47-59.19. Optimum portfolio formed by Unilever Indonesia (61.27%), Indofood ICBP (32.27%), BCA (3.81%), and BRI (2.65%). Return of optimum portfolio was 21.77% year on year and it was the highest return among portofolios which were formed randomly.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9240
Ilmu Pertanian (Agricultural Science); Vol 1, No 3 (2016): December
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/9256
2017-07-02T23:39:30Z
jip:ART
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"160403 2016 eng "
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Contribution of Agricultural Sector Towards Regional Income Inequality of Sumatera Economic Corridor
Juhandi, Dany
Politeknik Wilmar Bisnis Indonesia
Irham, Irham
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTk2MjEzMTcxOTg5MDMxMDAy
Jamhari, Jamhari
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTk3MzAzMTgxOTk3MDIxMDAx
Array
Finding of previous studies shows that Sumatera Economic Corridor is categorized as the highest income inequality. The Indonesian goverment enacts MP3EI (Master Plan for the Acceleration and Expansion of Indonesia Economic Development) program to promote equitable development where each economic corridor owns strategic economic sector. The objective of this study is to analyze the contribution of agricultural sector on income inequality in Sumatera Economic Corridor (SEC) using a weighted coefficient of variation. We use secondary time series data of Gross Regional Domestic Product (GRDP), number of population, and per capita income of a time range between 2002 and 2013. Data analysis shows that agricultural sector has the least contribution on income inequality. Consequently, goverment policy should be focusing on the development of agricultural sector in Sumatera Economic Corridor
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2016-04-03 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9256
Ilmu Pertanian (Agricultural Science); Vol 1, No 1 (2016): April
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/9295
2017-07-02T23:39:54Z
jip:ART
nmb a2200000Iu 4500
"160403 2016 eng "
2527-7162
0126-4214
dc
How to Mitigate The Production Risks on Coastal Red Chilli Farming in Kulon Progo Regency
Basyarahil, Azmi
Magister Management of Agribusiness, Faculty of Agriculture, Universitas Gadjah Mada
Irham, Irham
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTk2MjEzMTcxOTg5MDMxMDAy
Waluyati, Lestari Rahayu
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTMyMDA1NzQw
Array
The southern part of the Special Province of Yogyakarta consists of a coastline spanning over 113 km, under the administrations of Bantul, Gunung Kidul and Kulon Progo regencies, that can become an asset and resource of an important economy. Cabe Merah (red chilli) is one of the commodities that show high numbers of productivity in Kulon Progo Regency. Activities of red chilli farming on the coastal land of this regency have been growing, especially since the establishment of commodity auction market to help farmers sell their harvests. The study was conducted to (1) find out the size of production in red chilli agribusiness on coastal land, (2) to analyze the risk levels of production faced by the farmers, and (3) how to mitigate the production risks on coastal red chilli farming. There were 40 participating farmers from Banaran Village, Galur Sub-district, Kulon Progo Regency. The location was intentionally chosen by using multistage area sampling method. The data used were collected from the production and income of three growing seasons. Data analyses were performed using production risk and The House of Risk methods. Based on the variance coefficient, the production risks level was at 0,03 with the production lower limit of 9.596 Kg/Ha, which showed a low level of risk. The various risk mitigation strategies have been performed by the farmers to lessen the risks that can causes losses in the process of coastal red chilli productions.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2016-04-03 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9295
Ilmu Pertanian (Agricultural Science); Vol 1, No 1 (2016): April
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/9907
2019-02-14T07:49:18Z
jip:ART
nmb a2200000Iu 4500
"181221 2018 eng "
2527-7162
0126-4214
dc
Khasanah, Ukhwatul
Hadi, Dwijono
Hartono, Slamet
The aims of this study are to analyze and describe the potency and challenge in implementation of warehouse receipts system in Niaga Mukti Cooperative, Cianjur. The used method is descriptive analysis with the subject of Niaga Mukti Cooperative as the sample of WRS for rice commodity. The result of the research tells that warehouse receipts system has potency as collateral credit document to obtain the finance of farm for the member of Niaga Mukti Cooperative with 6% per year or 1,5% per month after obtaining from the government grant. In conducting WRS program, the cooperative confronts various challenges such as empowering of economic society through WRS, empowering of warehouse receipts as alternative finance, finance instruments and marketing for farm and requiring coordination and correlation among the government, regions, farm cooperative, bussinessmen, and finance institutions.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2018-05-16 00:00:00
https://jurnal.ugm.ac.id/jip/article/view/9907
Ilmu Pertanian (Agricultural Science); Vol 3, No 3 (2018): December
ind
https://jurnal.ugm.ac.id/jip/article/download/9907/20299
Copyright (c) 2018 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/9912
2017-07-02T23:39:53Z
jip:ART
nmb a2200000Iu 4500
"160403 2016 eng "
2527-7162
0126-4214
dc
Pratiwi, Liana Fatma Leslie
Hardyastuti, Suhatmini
http://acadstaff.ugm.ac.id/MTk1NTA1MDkxOTgyMTEyMDAx
Waluyati, Lestari Rahayu
http://acadstaff.ugm.ac.id/MTMyMDA1NzQw
It takes into account in potato farming sustainability, since it was recognised as a holticultural commodity for farmers’ subsistence in Wonosobo Regency. For the reason that farming land was being degraded by errossion, the potato productivity apparently continued to decline. Potato farming sustainability can be deliberated from economic (profitability) and environmental (conservation efforts) points of view in order to remain profitable in a long term sustainable environment. This study is aimed to (1) to analyse the profitability of potato farming; (2) to analyse farmers’ effort on soil conservation and factors which affected sustainability of potato farming. The method used in this study was basic descriptive analysis. The study site was in Kejajar District, Wonosobo Regency, subsequently 50 random farmers as respondences was obtained. Gross Margin, Return on Invested Capital, and Operating Ratio were used to measure the profitability of potato farming. Conservation Activity Index (CAI) was used to measure farmers’ effort on soil conservation, while paired liner regression model with Ordinary Least Square (OLS) method was used to understand the factors which affected the conservation efforts of test sites. The study results revealed that the potato farming was profitable. Farmers conservation efforts mostly was in average category (74%), and only view in high category (16%) and low category (10%). Factors affected the farmers conservation efforts i.e. land area, potato products, potato price, the off-farm income, number of family members, farmers ages, and village dummy.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2016-04-03 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/9912
Ilmu Pertanian (Agricultural Science); Vol 1, No 1 (2016): April
ind
https://jurnal.ugm.ac.id/jip/article/download/9912/18207
https://jurnal.ugm.ac.id/jip/article/download/9912/18436
Copyright (c) 2016 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/10225
2017-07-02T23:39:53Z
jip:ART
nmb a2200000Iu 4500
"160403 2016 eng "
2527-7162
0126-4214
dc
Competitive and Comparative Advantages Analysis of Organic Rice Farming in Karanganyar Regency, Central Java Province
Suharyati, Anita
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Hartono, Slamet
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada http://sosek.faperta.ugm.ac.id/dr-ir-slamet-hartono-m-sc/
Waluyati, Lestari Rahayu
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTMyMDA1NzQw
Array
In era of the free trade which increasingly competitive, it is important to understandthe competitiveness of foodstuff commodity by every country. Public awareness of health hazards and adverse environmental impacts, as well as the trend of consumers choosing safe foodstuffs, lead to a shift to the cultivation of organic systems. This paper uses Policy Analysis Matrix (PAM) analysis to determine whether rice farming system has a comparative and competitive advantages when produced with organic farming practices. The purposes of this paper are to (1) Analyse the financial and economic advantages of organic rice farming in Karanganyar. (2) Analyse competitiveness of organic rice in Karanganyar Regency viewed from competitive advantage and comparative advantage. Based on the data analysis,results show that the organic rice farming in Karanganyar Regency has a competitive advantage and comparative advantage, indicated by PCR and DRC value that is less than one. The competitive advantage of organic rice in Karanganyar Regency is greater than the comparative advantage. PCR coefficient amount of 0.74 and DRC coefficient amount of 0.56. Thus organic rice farming in Karanganyar Regency is worth developing and has good competitiveness in domestic market as well as international market.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2016-04-03 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10225
Ilmu Pertanian (Agricultural Science); Vol 1, No 1 (2016): April
eng
https://jurnal.ugm.ac.id/jip/article/download/10225/19659
https://jurnal.ugm.ac.id/jip/article/download/10225/19696
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/10614
2016-12-09T04:21:37Z
jip:ART
nmb a2200000Iu 4500
"151211 2015 eng "
2527-7162
0126-4214
dc
Basuki, Basuki
Purwanto, Benito Heru
Sunarmito, Bambang Hendro
Hidayah Utami, Sri Nuryani
Industri gula Indonesia berada di bawah tekanan untuk meminimalkan kehilangan nutrisi off-farm dan mengurangi seluruh biaya produksi. Saprodi pupuk menyerap biaya produksi 65% dari total biaya. Salah satu upaya yang dapat dilakukan adalah penerapan rekomendasi pupuk spesifik berdasarkan analisis tanah. Penelitian ini bertujuan untuk mengelompokkan petak Status Hara N Total, P-Tersedia, K-Tertukar dan cluster rekomendasi pemupukan tanaman tebu (Saccharum officinarum Linn.) di kebun Unit Usaha PG. Djatiroto, Lumajang melalui pemetaan. Analisis dilakukan terhadap 48 sampel, dengan 1 sampel mewakili petak 6,25 ha. Pengelompokan petak berdasarkan peubah konsentrasi N Total, P-Tersedia, K-Tertukar dilakukan dengan metode Hierarchical cluster Analysis dan Sistem Informasi Geografis (GIS) mulai dari bulan Januari sampai Mei 2014. Hasil analisis mendapatkan 5 kelompok area rekomendasi pemupukan. Satu kelompok (cluster 3) yang terdiri dari satu petak dengan rekomendasi 160 kg N/ha, 90 kg P2O5/ha,145 kg K2O/ha; cluster 1 yang terdiri dari 29 petak dengan rekomendasi 160 kg N/ha, 90 kg P2O5/ha, 175 kg K2O/ha; cluster 2 yang terdiri dari 7 petak dengan rekomendasi 120 kg N/ha, 90 kg P2O5/ha, 175 kg K2O/ha, cluster 4 yang terdiri dari 23 petak dengan rekomendasi 160 kg N/ha, 135 kg P2O5/ha, 175 kg K2O/ha; cluster 5 yang terdiri dari 6 petak dengan rekomendasi 120 kg N/ha, 135 kg P2O5/ha, 175 kg K2O/ha.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-12-11 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10614
Ilmu Pertanian (Agricultural Science); Vol 18, No 3 (2015): December
ind
Copyright (c) 2016 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/10615
2016-12-09T04:21:37Z
jip:ART
nmb a2200000Iu 4500
"151211 2015 eng "
2527-7162
0126-4214
dc
Hasanah, Uswatun
Masyhuri, Masyhuri
Djuwari, Djuwari
Penelitian ini bertujuan untuk membandingkan nilai tambah agroindustri sale pisang berdasarkan : 1) ukuran pisang raja siam yang digunakan, 2) metode membuat kerekel sale, 3) asal kerekel sale yang digunakan, 4) pengusahanya, dan 5) mengetahui faktor-faktor yang berpengaruh terhadap produksi sale pisang. Metode dasar penelitian menggunakan metode deskriptif analitis. Sampel kabupaten dan kecamatan ditentukan menggunakan metode purposive sampling, pengumpulan data menggunakan metode sensus. Analisis data untuk menghitung nilai tambah agroindustri menggunakan metode Hayami dan untuk mengetahui faktor-faktor yang berpengaruh terhadap produksi menggunakan metode analisis regresi OLS. Hasil penelitian menunjukkan: bahwa ukuran pisang raja siam yang digunakan tidak menghasilkan nilai tambah yang berbeda; metode membuat kerekel sale cara pasahan dan cara pres tidak menghasilkan nilai tambah yang berbeda; pengusaha murni mampu menciptakan nilai tambah lebih besar dibandingkan petani pengrajin sale pisang; pengusaha yang membeli kerekel sale mampu menciptakan nilai tambah lebih besar dibandingkan dengan yang membuat kerekel sendiri; faktor-faktor yang berpengaruh terhadap produksi sale pisang adalah jumlah modal, jumlah pisang, dan variabel dummy cara pembuatan kerekel sale.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-12-11 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10615
Ilmu Pertanian (Agricultural Science); Vol 18, No 3 (2015): December
ind
Copyright (c) 2016 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/10616
2016-12-09T04:21:37Z
jip:ART
nmb a2200000Iu 4500
"151211 2015 eng "
2527-7162
0126-4214
dc
Contribution of Agricultural Sector and Sub Sectors on Indonesian Economy
Khairiyakh, Refa’ul
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Irham, Irham
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada http://www.faperta.ugm.ac.id/sosek2006/edu_staff/prof_irham.htm
Mulyo, Jangkung Handoyo
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada https://www.researchgate.net/profile/Jangkung_Mulyo
Agricultural Sector; Linear Trend; LQ and DLQ
This research aimed to analyze trend of agricultural GDP and agricultural contribution in Indonesia, and identify the role of agricultural sector and sub sectors in provinces of Indonesia. Source of data this research use linear trend analysis to analyze trend agricultural Gross Domestic Product (GDP) and agricultural contribution. Location Quotient (LQ), Dynamic Location Quotient (DLQ), and combination LQ and DLQ is used to identify the role of agricultural sector and sub sectors. The analysis found that agricultural GDP in Indonesia has increasing trend while agricultural contribution has decreasing trend. Agricultural sector is basic sector in 29 provinces in Indonesia. Farm food crop is leading sub sector in 6 provinces, farm non food crops is leading sub sector in 14 provinces, livestock is leading sub sector in 3 provinces, forestry is leading sub sector in 1 provinces, fishery is leading sub sector in 5 provinces.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-12-11 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10616
Ilmu Pertanian (Agricultural Science); Vol 18, No 3 (2015): December
eng
Copyright (c) 2016 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/10617
2016-12-09T04:21:37Z
jip:ART
nmb a2200000Iu 4500
"151211 2015 eng "
2527-7162
0126-4214
dc
Analisis Efisiensi dan Daya Saing Komoditas pada Sistem Usahatani Integrasi Jagung-Sapi di Kabupaten Kupang
Marjaya, Siviardus
Program Studi Manajemen Agribisnis Politeknik Pertanian Negeri Kupang
Jl. Adisucipto Penfui Kupang, P.O. Box 1152, Kupang 85011
Efisiensi; Daya Saing Usahatani Integrasi Jagung-Sapi
Sistem usahatani integrasi jagung-sapi sangat menentukan keberhasilan produk yang bisa bersaing dipasar, sekaligus membuka peluang kesempatan kerja dan memberikan pendapatan bagi petani. Penelitian ini bertujuan untuk menganalisis faktor-faktor yang mempengaruhi produksi, pendapatan, efisiensi dan daya saing sistem usahatani integrasi jagung-sapi di Kabupaten Kupang. Model analisis yang digunakan adalah analisis fungsi produksi Stochastic Frontier Cobb-Douglas model Battese and Coelli, 1995 dengan opsi Technical Efficiency Effect Model. Hasil pendugaan fungsi produksi stocastik frontier secara teknis telah efisien, dengan nilai efisiensi teknis rata- rata adalah 0,957 untuk komoditas jagung, dan ternak sapi potong adalah 0,999. Pendugaan fungsi biaya menunjukan bahwa nilai efisiensi biaya (cost efficiency) usahatani integrasi jagung-sapi lebih besar dari satu (CE >1) yakni 1.009 dan 1.268. Artinya penggunaan biaya faktor produksi pada usahatani integrasi jagung-sapi harus dikurangi agar dapat mencapai efisiensi yang optimal. Hasil PAM menunjukan bahwa usahatani integrasi jagung-sapi efisien secara finansial, memiliki keunggulan kompetitif dan dapat memacu pertumbuhan produksi. Sedangkan secara ekonomi atau memiliki keunggulan komparatif.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2015-12-11 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10617
Ilmu Pertanian (Agricultural Science); Vol 18, No 3 (2015): December
ind
Copyright (c) 2016 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/10656
2017-08-17T04:31:45Z
jip:ART
nmb a2200000Iu 4500
"170817 2017 eng "
2527-7162
0126-4214
dc
Performance of Village Unit Co-Operatives in Yogyakarta Special Region: A Data Envelopment Analysis Approach
Siregar, Abi Pratiwa
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Jamhari, Jamhari
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Waluyati, Lestari Rahayu
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Array
This study assessed the performance of 32 village unit co-operatives (KUD) in Yogyakarta Special Region during 2011 to 2012. The efficiency level of the KUD were evaluated by employing the data envelopment analysis and multiple regression analysis using panel data to determine the factors affecting efficiency level. Efficiency analysis was decomposed into three dimensions to explore possible sources of inefficiency. According to Marwa and Aziakpono (2016), the first dimension was technical efficiency, which explored the overall effectiveness of transforming the productive inputs into desired outputs compared to the data-driven frontier of best practice. The second dimension was pure technical efficiency, which captured managerial efficiency in the intermediation process. The third dimension was scale efficiency, which explored whether KUD were operating in an optimal scale of operation or not. The results found that the average scores are 64%, 92%, and 68% for technical, pure technical, and scale efficiency respectively in 2011, while in 2012 the average scores are 57%, 94%, and 60% for technical, pure technical, and scale efficiency. Factors having significantly positive impact on several measures of efficiency are incentive and dummy variables (agriculture inputs and hand tractor). Accounts receivable only has positive relationship to pure technical efficiency. On the other hand, rice milling unit and electricity services have negative impact with several measures of efficiency.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-17 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10656
Ilmu Pertanian (Agricultural Science); Vol 1, No 2 (2016): August
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/10662
2017-08-17T04:31:46Z
jip:ART
nmb a2200000Iu 4500
"170817 2017 eng "
2527-7162
0126-4214
dc
Competitiveness of Tea Exports in Asean: A Constant Market Share Analysis
Oktaviana, Nadia
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Masyhuri, Masyhuri
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Hartono, Slamet
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
ASEAN, Competitiveness, Constant Market Share, Export of Tea
This study was aimed to find out the competitiveness of tea exports in ASEAN during 2011-2014. Competitiveness indicates a country ability to compete with other countries in international trade activities. Constant Market Share (CMS) employed to understand the weaknesses and strengths of a country viewed from the effect of exports growth. CMS results showed that the major weakness of tea exports in Malaysia, Singapore, Thailand, and Vietnam is the effect of market distribution. Market distribution effect indicated that their exports to countries with a high demand for tea in the world. On the other hand, the strengths of tea exports in Malaysia, Singapore, Thailand, and Vietnam are the effect of world exports growth, commodity composition effect, and the competitiveness effect. Conversely, the major weakness of tea exports in Indonesia is competitiveness effect, while the strengths are the effect of world exports growth and the effect of market distribution.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-17 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10662
Ilmu Pertanian (Agricultural Science); Vol 1, No 2 (2016): August
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/10706
2017-08-30T05:10:47Z
jip:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2527-7162
0126-4214
dc
Correlation of Growth Parameters with Yield of Two Cassava Varieties
Amarullah, Amarullah
Departemen of Agrotechnology, Faculty of Agriculture, Borneo Tarakan University, North Borneo, Indonesia
Indradewa, Didik
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta, Indonesia
Yudono, Prapto
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta, Indonesia
Sunarminto, Bambang Hendro
Department of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta, Indonesia
Growth Parameters; Yield; Growth Phase; Yield Components
The correlation of major growth parameters with the yield of cassava in different growth phases was investigated in 2013 and 2014. This experiment was conducted to assess the effect of two cassava varieties and the different growth phases to the yield and yield components. In experiment, the varieties as treatment were arranged in a randomized complete block design (RCBD) with three replications. Two varieties consisted of superior Adira-4 and local varieties Singgah were used. The growth parameters (plant height, stem diameter, leaf number) and yield components (number of tuber, weight per tuber and tuber yield) in early growth phase, maximum vegetative growth phase and charging tuber phase, were observed. Based on the correlation results, the growth parameters and the yield highly affected to the final outcome of cassava tubers at different growth phases. In the early growth phase, occurs high demand to assimilate with the expense of storage root. However, from the maximum vegetative phase, growth parameters began to show a significant positive contribution to the tuber weight. Weight of fresh tuber in both varieties increased at the charging of tubers phase and thereafter (enlarged bulb). The early growth phase and maximum vegetative phase might not generate a significant contribution to the final yield of cassava tuber. Making those two periods were not suitable time for optimum harvesting result, and it still depended on the variety and its allocation.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10706
Ilmu Pertanian (Agricultural Science); Vol 1, No 3 (2016): December
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/10783
2017-08-17T04:31:45Z
jip:ART
nmb a2200000Iu 4500
"170817 2017 eng "
2527-7162
0126-4214
dc
Analysis of Rice Price Trend and Vertical Integration of Rice Market in Indonesia
Kusumaningsih, Asih
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Jamhari, Jamhari
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Darwanto, Dwidjono Hadi
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Integration, Price, Rice, Trends, Vertical
The aims of this study were (1) to determine the trend of retail rice price in Indonesia and the price of grain at the farmer level in Indonesia and (2) to identify the vertical integration of the rice market in Indonesia. The monthly data of retail rice price and the price of grain at the farmer level (price of harvested dried grain at the farmer level) in Indonesia during January 2008 - January 2016 were used in this study. The least squares method was applied to determine the trend of prices, while Co-integration Model of Engle-Granger and ECM was used to estimate the vertical integration of Indonesian rice market. The results indicated that both types of prices had an upward trend. In the analysis of the vertical integration of rice market in Indonesia, there was a long-term balance relationship and short-term equilibrium relationship.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-17 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10783
Ilmu Pertanian (Agricultural Science); Vol 1, No 2 (2016): August
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/10786
2017-07-03T00:03:49Z
jip:ART
nmb a2200000Iu 4500
"160403 2016 eng "
2527-7162
0126-4214
dc
Proline Activity and Growth of Oil Palm affected by Aluminium Toxicity and Silica as Ameliorant
Khoiriyah, Annisa
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Putra, Eka Tarwaca Susila
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada https://scholar.google.co.id/citations?user=t29e7O8AAAAJ&hl=en
Yudono, Prapto
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTMwNTMwNzM0
Array
The research aims to investigate the effects of silica (Si) as an ameliorant on the proline compound concentration and the growth response of oil palm exposed to aluminum toxicity. The research was arranged in a complete randomized block design with 8 blocks as replications. The first factor was Al toxicity which consisted of two levels as without and with Al toxicity. Al toxicity treatment was applied by giving 300 ppm of Al concentrate along with watering activity regularly. The second factor was the application of silica which consisted of four levels as 0, 32, 64 g/plant. Proline and growth activities of leaf area, plant height, number of leaves, and dry weight were observed in the research. The data subjected to analysis of variance (ANOVA) at 5% test level. If the result of ANOVA showed significant differences among treatments, then the data would have been analyzed by Duncan’s Multiple Range Test (DMRT) at 5% test level. The results of the research provide information that Al toxicity increases proline compound in the plant tissues and decreases leaf area, plant height, number of leaves, and dry weight of Oil Palm. Applying Si at the level of 64 g/plant could increase proline concentrate and dry weight of oil palm exposed to A1 toxicity. Proline compound in the plant tissues did not have any correlation with the growth of oil palm. Thus, this case indicated that proline was a product and not a plant tolerant mechanism of Al toxicity.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2016-04-03 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10786
Ilmu Pertanian (Agricultural Science); Vol 1, No 1 (2016): April
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/10827
2017-08-31T01:15:33Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
The Influence of Attitude, Subjective Norm, and Perceived Behavioural Control Toward Snack Consumer Behaviour in Halal Labeling in Yogyakarta
Afsari, Ayu
Magister of Agribusiness Management, Faculty of Agricuture, Universitas Gadjah Mada
Suryantini, Any
Magister of Agribusiness Management, Faculty of Agricuture, Universitas Gadjah Mada
Mulyo, Jangkung Handoyo
Magister of Agribusiness Management, Faculty of Agricuture, Universitas Gadjah Mada
Attitudes; Consumer Behaviour; Learning; Subjective Norms; Perceived Behavioural Control; Price
Halal label was not only related to substances forbidden for a particular religion, but was also associated with many other important things. The talk about halal label issue also meant a talk about health and hygiene. This research aimed to determine the learning level of consumer of the concept of halal-labeled snack; to know how to influence learning, attitudes, subjective norms, perceived behavioural control, and the prices on consumer behaviour of packaged halal-labeled snack, either partially or simultaneously. The effect was determined using a multiple linear regression analysis. Data were collected through compiled structured questionnaires based on certain indicators addressed to 100 respondents. The sampling technique used in this study was a convenience sampling technique, where the sample was selected from members of the population willing to become respondents. The choice of location was determined intentionally (purposive). Attitude scale used was Likert scale, and scale variable used was interval scale. The results showed that the consumer learning level on a basic concept of halal contained in a halal label was very high. This was proven with the results of the interpretation of a score interval, i.e. 88.12%. Consumer behaviour towards snacks in packaging labeled halal simultaneously was influenced by learning, attitudes, subjective norms, perceived behavioural control, and price, while attitude and price influenced partially.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/10827
Ilmu Pertanian (Agricultural Science); Vol 2, No 1 (2017): April
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/11194
2017-08-31T01:15:32Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
Analysis of The Growth of Oil Palm (Elaeis guineensis Jacq.) Exposed by Aluminum Toxicity and Silica as an Amelioration
Ratnasari, Satiti
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Putra, Eka Tarwaca Susila
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Indradewa, Didik
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Aluminum Toxicity; Oil Palm; Plant Growth; Silica
Aluminum (Al) contained in acidic soil could become an obstacle for plant growth. The Al toxicity could inhibit root growth, water and nutrient absorption. One of the solution to overcome Al toxicity was by applying Silica (Si). The aim of this research was to study the impacts of Al to the growth activity of oil palm and to know the effects of Si to the growth activity of oil palm contaminated by Al. The factorial treatments were arranged in a complete random design with two factors. The first factor was Al toxicity, i.e. with and without Al, while the second factor was the application of Si that consisted of four levels (0, 32, 64, 96 gram per plant). some of variables included leaf area ratio (LAR), leaf area, net assimilation rate (NAR), relative growth ratio (RGR), plant height, and plant dry weight were observed. The result showed that Al toxicity decreased the LAR, leaf area, NAR, RGR, plant height, and plant dry weight. The application of Si 32 gram per plant increased leaf area ratio and was not significantly different from the application of 96 gram Si per plant. However, the application of Si to oil palm contaminated with Al did not affect to relative grow rate, but its application to normal plant would increase the relative growth ratio.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11194
Ilmu Pertanian (Agricultural Science); Vol 2, No 1 (2017): April
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/11217
2017-08-30T05:10:49Z
jip:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2527-7162
0126-4214
dc
The Export Strategy of PT. Dagsap Endura Eatore Yogyakarta for Entering Asean International Market
Wijayanto, Khusaini
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Darwanto, Dwidjono Hadi
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Waluyati, Lestari Rahayu
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
ASEAN International Markets; Export Strategy; PT. Dagsap Endura Eatore Yogyakarta
This study aimed to determine the position of PT. Dagsap Endura Eatore Yogyakarta and to formulate the export strategy to enter the international market of ASEAN. The primary and secondary data were used in this study. The SWOT analysis, consisted of four indicators i.e strengths, weakness, opportunities, and threats, was used for analysis data. The results showed that the total of weighting score for force factor of PT. Dagsap Endura Yogyakarta Eatore was 4.45; the vulnerability factor was 4.07; odds factor was 4.70; and threats factor was 4.11. The current PT. Dagsap Endura Eatore Yogyakarta is in quadrant 1 (one) SWOT matrix that supports an aggressive growth policy (Growth Oriented Strategy). Export strategy for PT. Dagsap Endura Eatore Yogyakarta should use the power, so that it can seize the export opportunities to enter the international market of ASEAN.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11217
Ilmu Pertanian (Agricultural Science); Vol 1, No 3 (2016): December
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/11227
2017-08-30T05:10:49Z
jip:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2527-7162
0126-4214
dc
Consumer Willingness to Pay of Organic Rice and The Factors which Affected in Pontianak
Setiyadi, Heru
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Hartono, Slamet
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Darwanto, Dwidjono Hadi
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Consumers; Contingent Valuation Method; Organic Rice; Willingness To Pay
Organic rice is claimed as one of staples food alternative choice. Consuming organic rice is not only about fulfilling the quality needs but also a part of life style. Organic rice is also available in many modern retails in Pontianak so that it is affordable enough to be consumed by Pontianak’s residents. The aims of study were to analyze Willingness To Pay (WTP) of consumers with Contingent Valuation Method (CVM) and find factors affected consumers WTP value of organic rice . Primary data were collected during March to April 2016 and analyzed by multiple regression. The samples of Pontianak’s residents were used as respondents. The result showed that willingness to pay rate of organic rice in Pontianak was low. The age, price of organic rice, ergonomic packaging, respondent expenditure in month, and non-organic rice price affected WTP with marked positive, while marital status factor had negative marked.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11227
Ilmu Pertanian (Agricultural Science); Vol 1, No 3 (2016): December
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/11254
2017-07-02T23:39:30Z
jip:ART
nmb a2200000Iu 4500
"160403 2016 eng "
2527-7162
0126-4214
dc
Root Morphology of Eight Hybrid Oil Palms Under Iron (Fe) Toxicity
Nurmalasari, Aprilia Ike
Departemen of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Putra, Eka Tarwaca Susila
Departemen of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada https://scholar.google.co.id/citations?user=t29e7O8AAAAJ&hl=en
Yudono, Prapto
Departemen of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTMwNTMwNzM0
Array
The research aims to study the change of morphology root characters of eight hybrid oil palms under iron toxicity (Fe). Field experiment done in arranged in a Randomized Complete Block Design (RCBD) two factors and three blocks as replications. The first factor was Fe concentration. It consists of two levels which are concentration 0µ.g-1 and concentration 600 µg.g-1 Fe. The second factor is the hybrid of oil palms which consists of eight hybrid oil palms as Yangambi, Avros, Langkat, PPKS 239, Simalungun, PPKS 718, PPKS 540 and Dumpy. Fe was applied by pouring FeSO4 solvent for 600 µg.g-1 500 ml.-1plant.-1day-1 on two months of plants after transplanting in the main nursery. Data were collected on root morphology and plant dry weight The data were analysis of variance (ANOVA) at 5% significanly, followed by Duncan's multiple range test (DMRT). The relationships by among variables were determined by correlation analysis. The results showed that Fe concentration 600 µg.g-1 inhibits relatively root growth rate, narrows surface area, reduces the diameter, and shrinks root volume of all hybrid oil palms tested. The slowing relatively root growth rate, narrowing of root surface area and root diameter also root volume shrinkage due to Fe stress. It was also shown that the dry weight of plants was inhibit by existing of Fe toxicity.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2016-04-03 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11254
Ilmu Pertanian (Agricultural Science); Vol 1, No 1 (2016): April
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/11341
2017-08-17T04:31:44Z
jip:ART
nmb a2200000Iu 4500
"170817 2017 eng "
2527-7162
0126-4214
dc
Effect of The Substitution of Compound Fertilizer With Single Fertilizer and Mycorrhizal Inoculation on The Growth and Yield of Soybean Among Eucalyptus
Sinaga, Apresus
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Indradewa, Didik
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Suryanto, Priyono
Faculty of Forestry, Universitas Gadjah Mada
Combination of Inorganic Fertilizers-Mycorrhizae, Crops, Soybean
The efforts to improve the productivity of soybean can be done through technological innovation by the provision of chemical fertilizers and mycorrhizae. This study were aimed to obtain information on the effect of a single fertilizer, which can provide the same or higher level of soybean crops if compared with those compound fertilizers, as well as to find out the effect of mycorrhizae to the improvement of efficiency in the use of inorganic fertilizers. It is expected that the mycorrhizae inoculation can reduce single fertilizer’s dose to the level equivalent to the compound fertilizer given by farmers. The study was conducted in Bleberan Village, Playen Subdistrict, Gunung Kidul Regency, Yogyakarta from February to May 2015. It was conducted by using a two-factors factorial design arranged in a randomized block design with three replications. The first factor was inorganic fertilizer (N, P2O5 and K2O), consisting of 5 levels, i.e. without fertilizer (0-0-0 kg/ ha), Phonska fertilizer (45-45-45 kg/ha), single fertilizer (45 -45-45 kg/ha), a low single fertilizer (23-36-30 kg/ha) and high single fertilizer (23-108-90 kg/ha). The second factor was mycorrhizal inoculation, consisting of three levels, i.e. without mycorrhizae (0 g), medium dose (2.5 g) and high dose (5 g). Data were analyzed using Analysis of Variance (ANOVA) at a significance level of 5%. If there was a significant difference, analysis was followed by Duncan Multiple Range Test with a significance level of 5%. The relationship between variables observed was examined by a correlation analysis. The results showed that there was no interaction between inorganic fertilizer and mycorrhizal application. The dose of single fertilizer which was equivalent to the dose of compound fertilizer given to soybean could increase crops by 1.37 t/ha compared with plants treated with a compound fertilizer 1.13 t/ha. The results of correlation analysis among parameters showed that there were correlations between the grain crops and height (r = 0.506**), stem diameter (r = 0.303*), and the number of pods per plant (r = 0.313*).
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-17 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11341
Ilmu Pertanian (Agricultural Science); Vol 1, No 2 (2016): August
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/11512
2020-04-01T04:06:16Z
jip:ART
nmb a2200000Iu 4500
"200214 2020 eng "
2527-7162
0126-4214
dc
Maknun, Luluil
Azhari, Noerma Juli
http://orcid.org/0000-0003-0551-0336 http://orcid.org/0000-0003-0551-0336
Izzati, Mike Nur
Huda, Rizal Nur
Bahrudin, Abdul Malik
Ginting, Erliana
Sulistyarti, Hermin
Cyanides are deadly toxic substances commonly found in cassava root tuber. Higher content of cyanides causes bitter taste of the root tuber. Therefore, analysis of cyanide content has been used as one of criteria for bitterness in cassava. The substitute common method used for this purpose was organoleptic test that could lead to poisoning, or argentometry, which is complicated, time-consuming, and requires lots of reagents. Therefore, a fast, easy, and safe method is strongly demanded. In this work, a smart screening technology kit (SST-Kit) was developed using ninhydrin reagent. This simple, fast, and low-cost method can be applied in the field for the analysis of cyanide levels in cassava. This method was optimized to the concentration of sodium carbonate from 0.5 to 2.0% by measuring the red color intensity produced under various times of reading from 1 to 3 minutes and three sample preparation techniques. The optimum condition for SST-Kit to read the cyanides level was achieved under the condition of 0.5% of sodium carbonate with a time readout of 2 minutes, using grinding preparation technique followed by dilution. The SST-kit had been applied on cassava samples with the accuracy of more than 90%.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2020-01-28 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11512
Ilmu Pertanian (Agricultural Science); Vol 5, No 1 (2020): April
ind
Copyright (c) 2020 Ilmu Pertanian
oai:jurnal.ugm.ac.id:article/11654
2017-07-02T23:39:29Z
jip:ART
nmb a2200000Iu 4500
"160403 2016 eng "
2527-7162
0126-4214
dc
Survey and Detection of Pectobacterium atrosepticum in Major Potato-Growing Areas in Central Java Province, Indonesia
Ismiyatuningsih, Ismiyatuningsih
Agency for Agricultural Quarantine Class I Semarang
Joko, Tri
Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada https://www.researchgate.net/profile/Tri_Joko
Hartono, Sedyo
Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada http://acadstaff.ugm.ac.id/MTk2ODA0MDUxOTk1MTIxMDAx
Array
Potato (Solanum tuberosum) is a seasonal shrub-tuber crop originated from sub-tropical area. Soft-rot is one of the most important diseases of potato. It can be caused by Pectobactorium atrosepticum, a pathogen within a status of quarantine plant pest A1 type I in Indonesia. The objective of this study was to know the incidence of potato soft rot disease and to detect P. atrosepticum in major potato-growing areas in Central Java Province by applying the serology method using DAS-ELISA technique. Survey of soft rot disease was carried out in some regencies in Central Java Province, i.e. Magelang, Banjarnegara, Wonosobo and Karanganyar. The field survey of potato plant in all the regencies indicated symptoms of stem rot which was black in color (blackleg) and foul-smelling, with disease incidence of about 10–90%. The laboratory testing showed that by applying DAS-ELISA method, P. atrosepticum was detected in samples collected from Pandean and Bagongan villages, district of Ngablak,Regency of Magelang, Central Java Province.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2016-04-03 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11654
Ilmu Pertanian (Agricultural Science); Vol 1, No 1 (2016): April
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/11786
2017-08-17T04:31:44Z
jip:ART
nmb a2200000Iu 4500
"170817 2017 eng "
2527-7162
0126-4214
dc
Yield, Capsaicin Content and Peroxidase Enzyme Activity of Four Chili Cultivars on Three Environments
Rohmah, Mahya Nur
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Mitrowihardjo, Suyadi
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Murti, Rudi Hari
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Capsaicin Levels, Drought Stress, Environment, Enzyme Peroxidase Activity
The experiment aimed to determine the effect of different environment (altitude and drought stress) on the growth, yield per plants, capsaisin levels, and peroxidase activities of four chili cultivars. Capsicum annuum (‘Lado’ and ‘Gada’) and Capsicum frutescens (‘Pelita’ and ‘Sona’) were grown with standard cultivation in medium land (± 700 m asl, Kaliurang) and low land (112 m asl, Bulaksumur) in two environments i.e. standard cultivation and drought treatment. The cultivars were arranged in Complete Randomize Design with four replications in each environment. The data were analyzed using analysis of variance with orthogonal contrast model, while the GGE biplot was applied for identification of stability. The result showed significant interaction between environment and cultivar on plant height, fruit’s weight per plant and the contents of capsaicin. Medium land of Kaliurang had suitable environment for chili cultivation of four cultivars and the high capsaicin content of C. frutescens. ‘Gada’ was significantly higher than other cultivars for fruit weight per plant in all planting conditions, while ‘Sona’ had the highest capsaicin content and was stable in all environments. Drought stress increased capsaicin content in low capsaicin content variety, in contrast to high capsaicin content cultivar. Peroxidase enzyme activity of C. frutescens was significantly higher than C. annuum, while C. annuum cultivars also shown significantly different in peroxidase activity.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-17 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/11786
Ilmu Pertanian (Agricultural Science); Vol 1, No 2 (2016): August
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/12534
2017-08-17T04:31:46Z
jip:ART
nmb a2200000Iu 4500
"170817 2017 eng "
2527-7162
0126-4214
dc
Risk Management Strategy on Shallot Farming in Bantul and Nganjuk Regency
Hasan, Fuad
Department of Agribusiness, Faculty of Agriculture, Trunojoyo University, Madura
Darwanto, Dwidjono Hadi
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Masyhuri, Masyhuri
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Adiyoga, Witono
Indonesian Vegetable Research Institute
Ex Ante, Ex Post, Interactive, Risk Management, Risk Perception
The objectives of this research were to understand farmers’ perception to risk and risk management strategy on shallot farming. The research was conducted in Bantul and Nganjuk Regency. The number of samples taken were 57 farmers in Bantul and 90 farmers in Nganjuk. Analysis used was frequency table that disaggregate based on agroecosystem and cropping pattern. The result showed that according to farmers’ perception, production and price risk were high. Farmer's decision to follow dominant cropping pattern and production system reflected on the ex ante risk management strategies done by the farmers as their own respection. In the interactive risk management strategies, farmers tended to use chemical fertilizers over chemical pesticides. In ex post risk management strategy, in the failure of shallot farming, they kept cultivating shallot that their capital got on cash and input for shallot farming.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-17 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/12534
Ilmu Pertanian (Agricultural Science); Vol 1, No 2 (2016): August
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/12564
2017-08-30T05:10:46Z
jip:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2527-7162
0126-4214
dc
Various Shallot Seed Treatments with Trichoderma to Increase Growth and Yield on Sandy Coastal
Darsan, Stefany
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Sulistyaningsih, Endang
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Wibowo, Arif
Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada
Sandy Costal, Shallot, Trichoderma
Sandy coastal area is a poor land, with minimal nutrients and low ability to store water and nutrition. Therefore, plant is difficult to grow well, consequently the treatments for improving sandy coastal is required before planting to support their growth. Application of Trichoderma as a plant-growth promoting and controlling pathogens had been known. Shallot seed treatment by Trichoderma agents was intended to improve and support plant growth and yield in the sandy coastal land. The aim of experiment was to determine the most effective treatment to improve growth and yield of shallot on sandy coastal land. The experiment had been carried out in Yogyakarta during August - November 2015. The factorial treatments of cultivar and Trichoderma applications were arranged in Completely Randomized Design with three replications. The shallot cultivars consisted of Tiron, Crok, and Biru, while Trichoderma application consisted of control (no treatment), sprayed with Trichoderma, soaked in Trichoderma, matricontioning media i.e. rice husk charcoal and brick in combination with Trichoderma. The collected data related to plant growth and yield. The result showed that seed treatment methods with Trichoderma increased the plant height, the leaf area index, extensive root, net assimilation rate (NAR), plant growth rate (PGR), Nitrate Reductase Activities (NRA), total chlorophyll, and fresh bulb weight. The best technical treatment for cultivar Tiron was soaked with Trichoderma, and Crok was sprayed with Trichoderma, while Biru cultivar was using brick in combination with Trichoderma.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/12564
Ilmu Pertanian (Agricultural Science); Vol 1, No 3 (2016): December
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/12840
2017-08-31T01:15:30Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
In Vitro Induced Resistance of Fusarium Wilt Disease (Fusarium oxysporum f.sp. cepae) by Salicylic Acid in Shallot CV ‘Bima Brebes’
Khotimah, Khusnul
Faculty of Agriculture, Muhadi Setiabudi University http://orcid.org/0000-0003-0948-338X
Sulistyaningsih, Endang
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Wibowo, Arif
Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada
Cv ‘Bima Brebes’; Exogenous Inducer; Fusaric Acid; Regeneration of Callus
Fusarium wilt caused by Fusarium oxysporum f.sp.cepae (Foc) is one of the most important diseases of onion in Indonesia. Induced resistance was one of the effective techniques to acquire resistance to fusarium wilt in shallot. Salicylic acid (SA) had been inferred to be in endogenous signal in the systemic acquired resistance response of plants. This research aimed to study the effect of exogenously added SA to resistance in shallot callus cv ‘Bima Brebes’ to fusarium wilt disease in vitro; and to determine the effective concentration of SA to induce resistance. A group of shallot callus was grown in MS medium containing varying SA concentration (0, 15, 20 and 25 ppm) in vitro for 2 weeks. Then, the callus were treated with toxin of Fusarium oxysporum, namely fusaric acid, to have observe the resistance response. In vitro selection was done twice in different fusaric acid concentration. Application of exogenous SA at all concentration did not suppres time of appearance of disease symptom yet. Toxic symptom in the callus was shown by the browning or blackening (off) of callus. Salicylic acid at concentration of 20 ppm effectively reduced the toxic symptom up to 16.66% and supported callus regeneration better than the concentration of 15 ppm and 25 ppm. The number of resistant callus regenerated was 66.67% at pretreatment of 20 ppm of SA.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/12840
Ilmu Pertanian (Agricultural Science); Vol 2, No 1 (2017): April
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/12841
2017-08-31T01:15:31Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
Effects of Pyraclostrobin on Growth and Yield of Curly Red Chili (Capsicum Annum L.)
Hardiansyah, Arizal Nur
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Sulistyaningsih, Endang
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Putra, Eka Tarwaca Susila
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Curly Red Chili; Dosage; Frequency; Pyraclostrobin
Curly red chili was one of vegetable commodities in Indonesia used for seasoning of home cuisine, food industry, and pharmaceutical industry. Curly red chili cultivation needed fungicide to prevent fungal disease. Pyraclostrobin was a fungicide which could overcome fungal attack and improve plant growth. This research was conducted to study the effectiveness of pyraclostrobin application on vegetative growth of curly red chili plant. Research had been done in farmer’s land in Kemiriombo Village, Dukun Sub District, Muntilan District, Magelang Regency from December 2013 to June 2014. The treatments were assigned in the Randomized Complete Block Design with three replications. The treatments consisted of P1: pyraclostrobin doses 1.5 kg ha-1, 30 and 90 days after planting (dap), P2: pyraclostrobin 1.5 kg ha-1 at 30, 60, and 90 dap, P3: pyraclostrobin 1.5 kg ha-1, at 15, 30, 60, and 90 dap, P4: pyraclostrobin 3 kg ha-1, at 30 and 90 dap, P5: pyraclostrobin 3 kg ha-1, at 30, 60, and 90 dap, P6: pyraclostrobin 3 kg ha-1, at 15, 30, 60, and 90 dap, and P0: control (no treatment). Data were analyzed by orthogonal contrast test with α=5%. The result indicated significant different in the dry weights of root, stem, leaf, and total yield at 12 weeks after planting; number of flower at 9-11 week after planting, 14 week after planting, and 18-21 week after planting; and number of fruits at 10-12 week after planting, 15, and 16 week after planting. The application of pyraclostrobin at all dosages could increase IAA content. The numbers of flower and fruit were influenced by the increasing of IAA content in plant tissue, but did not affect the yield.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/12841
Ilmu Pertanian (Agricultural Science); Vol 2, No 1 (2017): April
eng
https://jurnal.ugm.ac.id/jip/article/download/12841/25686
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/13613
2017-08-31T01:15:34Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
Analysis of Soybean Availability in Indonesia
Natalia, Grace
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Darwanto, Dwidjono Hadi
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Hartono, Slamet
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Availability; ECM; Soybean
This study aimed to determine the factors affected the soybean availability in Indonesia. This study used secondary data obtained from FAO (Food and Agriculture Organization), World Bank, and the Ministry of Finance. In this study, the data from 1964 to 2013 used to determine the factors affected soybean availability in Indonesia . The Error Correction Model (ECM) was used to determine the factors affected soybean availability. The results showed that (1) the data were stationary at first difference; (2) the data used co-integrated means long-term parameters; (3) ECT coefficient was 0.846 (significant at α = 5%) indicated the model used was valid. Soybean availability in Indonesia in the short term was positively influenced by the total planted area, total soybean consumption, and soybean import tariffs. In the long term, soybean availability in Indonesia was positively influenced by the total planted area, productivity of soybean, domestic soybean prices, soybean consumption, and rupiah exchange rate to dollar. In the long-term, availability of soybeans was negatively affected by the price of imported soybean.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/13613
Ilmu Pertanian (Agricultural Science); Vol 2, No 1 (2017): April
eng
https://jurnal.ugm.ac.id/jip/article/download/13613/28054
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/16349
2017-08-30T05:10:48Z
jip:ART
nmb a2200000Iu 4500
"170830 2017 eng "
2527-7162
0126-4214
dc
Effects of Plant Growth Promoting Rhizobacteria (PGPR) on Growth and Yield of Shallot in Sandy Coastal Land
Tuhuteru, Sumiyati
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Sulistyaningsih, Endang
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Wibowo, Arif
Department of Plant Protection, Faculty of Agriculture, Universitas Gadjah Mada
PGPR; Sandy Coastal Land; Shallot
The marginal sandy coastal land should be utilized to maintain production level of shallot. But for increasing the productivity of sandy coastal land, in the shallot cultivation should be applied biological fertilizers, such as Plant Growth Promoting Rhizobacteria (PGPR). The purpose of this research was to obtain the most effective isolate of PGPR (Plant Growth Promoting Rhizobacteria) to the growth of three shallot cultivars in the sandy coastal land. The research had been conducted in August-November 2015 at Samas sandy coastal land, Bantul. The Factorial treatments were assigned in Randomized Complete Block Design with three blocks as replications. The first factor was shallot cultivars consisted of Crok, Tiron and Tuk-tuk, while the second factor was the PGPR suspension, i.e. control (without PGPR), PGPR isolates BP25.2 (Bacillus methylotrophicus), BP25.6 (Bacillus amyloliquofaciens), BP25.7 (Bacillus subtilis), BrSM 4 (Burkholderiacepacia), and BrSG 5 (Burkholderiaseminalis). The data of growth and yield were analyzed using ANOVA with α = 5%, then followed by DMRT α 5% . The result showed that Tiron cultivar was able to grow in sandy coastal land, proven from its good germination, high number of bulb, high fresh weight, and dry weight of bulb. Meanwhile, BP25.2 isolate was able to increase seed growth simultaneously of Tiron cultivar and BrSM 4 isolate was able to increase the chlorophyll content of Tuk-tuk cultivars.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-30 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/16349
Ilmu Pertanian (Agricultural Science); Vol 1, No 3 (2016): December
eng
Copyright (c) 2016 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/16432
2017-08-31T01:15:34Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
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The Efficiency of Farmers Group Association on Strengthening The Institutions of Community Food Distribution Program Stage in Yogyakarta Special Region 2014
Ivan's, Eny
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Mulyo, Jangkung Handoyo
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
Darwanto, Dwidjono Hadi
Department of Agricultural Socio Economics, Faculty of Agriculture, Universitas Gadjah Mada
DEA; Efficiency; Gapoktan; Strengthening-LDPM
In protecting and empowering the farmers, farmers group, and farmers group association (Gapoktan) from falling prices of grain and rice at harvest time and food accessibility problems, the government through the Ministry of Agriculture and Food Security Agency implemented the Strengthening the Institutions of Community Food Distribution Program (Strengthening-LDPM). This research was aimed to analyse the level of efficiency and to identify factors influencing the efficiency of Gapoktan in implementing the Strengthening-LDPM by involving 40 Gapoktan post-independence. The data used in this research were primary and secondary data, drawn from stockopname reports in 2014. This research used DEA (Data Envelopment Analysis) analysis, assuming that CRS (Constant Return to Scale) and VRS (Variable Return to Scale) using output-oriented assumptions. In addition, factors affecting the efficiency were analysed using multiple regression OLS (Ordinary Least Square). Based on DEA-CRS approach, as much as 37.5% Gapoktan were efficient and 62.5% Gapoktan were inefficient. Whereas with the approach of the DEA-VRS, 50% Gapoktan were efficient and 50% Gapoktan were inefficient. The average age of Gapoktan board, total volume of grain or rice sales, total volume of food reserve, and total loan interest affect significantly in increasing the efficiency of Gapoktan in running the strengthening-LDPM Program.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/16432
Ilmu Pertanian (Agricultural Science); Vol 2, No 1 (2017): April
eng
https://jurnal.ugm.ac.id/jip/article/download/16432/31168
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/16983
2017-11-16T08:17:00Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
Population of Herbivorous and Carnivorous Arthropods in Rice Field Ecosystem Modified with Vermicompost and Flower Plants
Suparni, Suparni
Departement of Plant Pest and Disease, Faculty of Agriculture, Universitas Gadjah Mada
Putra, Nugroho Susetya
Departement of Plant Pest and Disease, Faculty of Agriculture, Universitas Gadjah Mada
Suputa, Suputa
Departement of Plant Pest and Disease, Faculty of Agriculture, Universitas Gadjah Mada
Glyphosate; Paraquat; Tobacco Plant; Weed
Biological diversity index could be used as an option to assess the stability of an agricultural ecosystem. This limited field research was aimed to determine the effect of vermicompost and flowering plants (Asteraceae) to the diversity of herbivore and carnivore arthropods (M+). Conventional treatment with the application of non-organic fertiliser and without the addition of flowering plant was used as control (M0). Sampling was conducted using insect nets, and began at 30 days after planting (DAT), and repeated every other week until before harvesting. The results showed that the diversity of herbivore and carnivore arthropods in modified plots with organic fertiliser worm cast and flower plants/habitat manipulated system (M+) was moderate (herbivores: Shannon diversity index from 1.1 - 2.2; carnivores: 1.93 - 2.09), as well as the diversity of arthropods in the field of non-modified/custom system (M0) (herbivores: Shanon index of 1.2 - 1.7; carnivore: 1.34 - 2.18). Meanwhile, the number of arthropod species found in the M+ plot was 59 species, consisted of 22 herbivores and 37 carnivores (9 order, 32 families, and 35 genera). Number of arthropods found in the M0 plot was 54 species, consisted of 17 species of herbivores and 37 species of carnivores (7 orders, 28 families, and 30 generas). Statistical analysis showed that there was no significant difference in the plot diversity M+ and M0. Nevertheless, mean diversity of the M+ plot tended to be higher (Shannon Index herbivore and carnivore = 1.6 = 2.01) compared with M0 plot (herbivore and carnivore = 1.45 = 1.76).
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/16983
Ilmu Pertanian (Agricultural Science); Vol 2, No 2 (2017): August
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/17236
2017-11-16T08:17:15Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
Effect of Planting Distance on Nitrogen Uptake and Productivity of Paddy Var. Rojolele Irradiated with Gamma Rays in Inceptisol
Amanah, Amri
Department of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada
Utami, Sri Nuryani Hidayah
Department of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada https://www.researchgate.net/profile/Sri_Utami17
Nuruddin, Makruf
Department of Soil Science, Faculty of Agriculture, Universitas Gadjah Mada https://scholar.google.co.id/citations?user=RzQfmb0AAAAJ&hl=id
Array
The objective of this study was to examine the effect of planting distance of paddy var. Rojolele planted in conventional legowo system and dosage of gamma rays irradiated on nitrogen uptake and productivity of paddy. The experiment was arranged in a randomized complete block design (RCBD) with twelve treatments and three replications. The first factor was gamma ray radiation, consisted of three levels, namely control seed (B0), seed irradiated with gamma rays of 200 gray (B2), and seed irradiated with gamma ray of 300 gray (B3). The second factor was planting distance, consisted of four levels, namely distance of 25 x 25 (J1), distance of 30 x 30 (J2), legowo system of 2 : 1 (J3), and legowo system of 4 : 1 (J4 ). The results showed that jajar legowo system with planting distance of 2 : 1 significantly affected the nutrient content of nitrogen in shoot, nitrogen uptake of plant, and yield per hectare. Paddy var. Rojolele irradiated by 300 gray produced higher nitrogen content in shoot, nitrogen uptake of plant, and yield per hectare than those in control seeds and seeds irradiated with 200 gray. There was a tendency that planting distance with jajar legowo system resulted in higher grain (yield), on the contrary, the narrow row spacing impacted on lower grain (yield).
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/17236
Ilmu Pertanian (Agricultural Science); Vol 2, No 2 (2017): August
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/17668
2017-11-16T08:17:15Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
Growth Response of Carrot (Daucus Carota) Local and Hybrids Varieties on Different Pb Doses
Permata, Boy Indra
Department of Agronomy, Faculty of Agriculture, University of Andalas
Akhir, Nasrez
Department of Agronomy, Faculty of Agriculture, University of Andalas http://faperta.unand.ac.id/?q=node/254
Syarif, Zulfadly
Department of Agronomy, Faculty of Agriculture, University of Andalas http://faperta.unand.ac.id/?q=node/145
Carrot; Growth; Pb; Yields
This research aimed to analyse the growth and yield of local and hybrid carrots (Daucus carota) on various heavy metal (Pb) doses. The experiments had been done in Nagari Situjuah Limo Nagari, Kabupaten Lima Puluh Kota from August to December 2015. The purpose of this experiment was to obtain the safe doses of Pb for growth and yield of carrots as food consumption. Treatments were arranged in a split plot design with three replications. The treatments were four doses of Pb (0, 100, 200 and 300 mg/10 kg soil) and varieties (local and hybrid carrots). Data were analysed by variance analysis α=1%, and Duncan's Multiple Range Test (DMRT) with α=1%. The results showed that various doses of heavy metal Pb affected significantly different of Pb content in leaves, yields, and chlorophyll. Local and hybrid carrots had significantly difference in plant height, long leaves, yields weight and diameter, Pb doses in leaves and yields and chlorophyll. Pb contamination levels in leaves and the leaves exceeded the limits set by Indonesian National Standard (SNI)
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/17668
Ilmu Pertanian (Agricultural Science); Vol 2, No 2 (2017): August
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/17700
2017-08-31T01:15:32Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
The Effect of Various Weedy Periods on Growth and Yield of Soybean in Agroforestry System with Kayu Putih
Nugroho, Joko Budi Santoso
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Sulistyaningsih, Endang
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Suryanto, Priyono
Department of Silviculture, Faculty of Forestry, Universitas Gadjah Mada
Array
This study was aimed to detect the effect of various treatment periods of weedy on the growth and yield of soybean; and to determine the most appropriate time periods of weedy for soybean in agroforestry systems with kayu putih. The experiment had been conducted in Menggoran, BDH Playen, KPH Yogyakarta, Gunungkidul Regency, Special Province of Yogyakarta from February 28 to May 9, 2015. Randomized Complete Block Design (RCBD) with three blocks as replications waas applied in this experiment. The treatments were weedy periods on 0, 14, 28, 42, and 56 days after planting (dap) and weed-free period on 0, 14, 28, 42, and 56 dap. The results showed that there were significant differences in the soil moisture content, root surface area, root length, chlorophyll content, root dry weight, shoot dry weight, dry weight of soybean seeds, and weed dry weight. The highest seed weight per hectare was found in weed-free until harvest treatment but it was not significantly different from weedy periods after 56 dap and weed-free after 14 dap. The effective periods of weedy time for soybean in agroforestry systems with kayu putih began at 28 dap - 56 dap.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/17700
Ilmu Pertanian (Agricultural Science); Vol 2, No 1 (2017): April
eng
https://jurnal.ugm.ac.id/jip/article/download/17700/36740
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/17991
2017-11-16T08:17:14Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
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The Optimum Dose of Nitrogen, Phosporus, and Potassium to Improve Soybean (Glycine max (L) Merr) Productivity on Kayu Putih (Melaleuca cajuputi) Stands
Jati, Roni Ismoyo
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Tohari, Tohari
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Suryanto, Priyono
Department of Silviculture, Faculty of Forestry, Universitas Gadjah Mada
Array
It was necessary to obtain optimum dose of nitrogen, phosphorus, and potassium obtained through fertilisation in order to improve productivity in the intercropping. Kayu putih tree was cultivated in Yogyakarta for oil production, and the inter-row was designed for intercropping plants, including soybean. The objective of present study was to obtain optimum dose of urea, SP-36, and KCl for soybean intercropped with kayu putih. The experiment was conducted in Menggoran Forest Resort (RPH Menggoran), Playen Forest Section (BDH Playen), Yogyakarta Forest Management District (KPH Yogyakarta) using split-split plot design. The main plot was urea, subplot was SP-36, and sub-subplot was KCl. Fertilisation consisted of three levels (0, 25, 50 kg ha-1 of urea), (0, 150, 300 kg ha-1 of SP-36) and (0, 75, 150 kg ha-1 of KCl). The results showed that application of 50 kg ha-1 urea, 300 kg. ha-1 SP-36, and 150 kg. ha-1 KCl increased N, P, K uptake per hectare as much as 16.23 kg N ha-1, 86.27 kg P ha-1, 40.02 kg K ha-1, respectively. There was positive interaction between urea and SP-36, SP-36 and KCl at leaf area, photosynthetic rate, number of seeds per plants, seed weight per plants, and seed weight per hectare. Under kayu putih intercropping, optimum dosage of urea, SP-36 and KCl were 0, 298.03 and 87.12 kg ha-1, respectively. These combination enabled to produce maximum seed weight of 2.01 tons. ha-1.
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/17991
Ilmu Pertanian (Agricultural Science); Vol 2, No 2 (2017): August
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/18333
2017-11-16T08:17:15Z
jip:ART
nmb a2200000Iu 4500
"170831 2017 eng "
2527-7162
0126-4214
dc
Shallot Growth and Yields Based on Ammonium:Nitrate Ratio on Coastal Sandy Soil
Safitri, Wiji
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Sulistyaningsih, Endang
Department of Agronomy, Faculty of Agriculture, Universitas Gadjah Mada
Purwanto, Benito Heru
Department of Soil Science Faculty of Agriculture, Universitas Gadjah Mada
Harper, Stephen
Australian Centre for International Agricultural Research
Array
Nitrogen was a key component for increasing yield and quality of vegetables like shallots. The growth and development of plants were influenced by nitrogen form. Common plants preferred nitrate for growth, but the enormity preference varies within plant species and other environmental factors. The purpose of this experiment was to study the effect of ammonium:nitrate ratio in sandy soil to growth and yield of shallot (Allium cepa L. Aggregatum group). The experiment had been conducted in August-October 2015 in the sandy land on Samas Beach, Bantul, Yogyakarta, Indonesia. The research was arranged in a Split-Plot design. The main plot was the source of nitrogen (NH4+; NO3-; NH4+: NO3- 1:1; NH4+: NO3- 1:2; and NH4+: NO3- 2:1) and the subplot was cultivars (Crok Kuning, Tiron, and Bima Brebes). Each subplot covered an area of 2.5 m² (2.5 m x 1 m) with three blocks as replications. Shallot bulbs were planted in sixth-row, spacing 20 cm between rows and 15 cm within rows. The dose was applied according to the recommendation of BPTP (urea 200 kg ha-1, ZA 250 kg ha-1, SP-36 150 kg ha-1, and KCl 150 kg ha-1) 144.5 kg N ha-1. Ammonium:nitrate ratio influenced shallot growth in sandy soil through number of leaves at maximum vegetative phase and its leaf area. The NH4+: NO3- 1:2 ratio gave the best result in dry weight of leaves following bulb dry weight than other ratio. Nevertheless, ammonium:nitrate ratio had no significant influence on bulb dry weight (ton ha-1).
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2017-08-31 00:00:00
application/pdf
https://jurnal.ugm.ac.id/jip/article/view/18333
Ilmu Pertanian (Agricultural Science); Vol 2, No 2 (2017): August
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
oai:jurnal.ugm.ac.id:article/24229
2017-04-20T08:24:14Z
jip:ART
oai:jurnal.ugm.ac.id:article/24318
2020-08-19T07:44:51Z
jip:ART
nmb a2200000Iu 4500
2527-7162
0126-4214
dc
Penilaiaan Mutu Hasil Beberapa Galur Harapan Padi Gogo Aromatik
Taryono, Taryono
Fakultas Pertanian, Universitas Gadjah Mada
Array
Penilaian bertujuan untuk....
Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI
2006-12-13 00:00:00
https://jurnal.ugm.ac.id/jip/article/view/24318
Ilmu Pertanian (Agricultural Science); Vol 13, No 2 (2006): September
eng
Copyright (c) 2017 Ilmu Pertanian (Agricultural Science)
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