2024-03-29T14:02:13Z
https://jurnal.ugm.ac.id/index/oai
oai:jurnal.ugm.ac.id:article/9298
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Pengendalian Nematoda Parasitik Tanaman secara Hayati dengan Bakteri Pasteuria penetrans: Inventarisasi, Pembiakan Massal, dan Uji Patogenisitas Isolat Bakteri
Mulyadi, Mulyadi
Fakultas Pertanian Universitas Gadjah Mada
Triman, B.
Fakultas Pertanian Universitas Gadjah Mada
Rahayu TP, Bambang
Fakultas Pertanian Universitas Gadjah Mada
biological control; parasitic nematodes; Pasteuria penetrans
The research on “Biological control of plant parasitic nematodes by nematophagous bacteria (Pasteuria penetrans)” was planned to be conducted within 3 years period, started in 1994/1995. In the first year research was done with the following objectives: 1) inventory on the isolates of P. penetrans, and 2) study on the mass production and pathogenicity test of P. penetrans. Survey of P. penetrans was done in the provinces of D.I. Yogyakarta, Central Java, East Java, and West Java. Soil and root samples were collected in this survey, plant parasitic nematodes were isolated using centrifugation and funnel and spray method. Mass production of P. penetrans was done with their host especially root-knot nematodes (Meloidogyne spp.). The bacterial infected nematodes were inoculated on tomato planted on sterilized soil. Roots contain root-knot nematodes inhabiting spores of P. penetrans were used as inoculum source. The pathogenicity tests of the isolates were done using bioassay method and in the green house in Completely Randomized Design.The research results is as follows: 1) seventeesn isolates of P. penetrans were found in the survey, these isolates were pathogenic to root-knot nematodes, 2) mass production of P. penetrans was done with their host especially root-knot nematodes and 4) treatment with P. penetrans significantly reduced the root-gall caused by root-knot nematodes.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9298
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9300
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Kajian Tanaman Inang Nematoda Puru Akar Padi (Meloidogyne graminicola)
Mulyadi, Mulyadi
Fakultas Pertanian
Universitas Gadjah Mada
Triman, B.
Fakultas Pertanian Universitas Gadjah Mada
host plants; Meloidogyne graminicola
The objective of the research was to study host plants or alternate hosts of root-knot nematode of rice (Meloidogyne graminicola). At the first phase research, ten rice cultivars were inoculated with M. graminicola. On the second phase, nineteen species of plants were treated with M. graminicola. Both experiments were done in green house in Completely Randomized Design. The third phase research was conducted as a survey method using “proportional random sampling”, with D.I. Yogyakarta as its survey areas. The research results indicated that all rice cultivars tested were attacked by M. graminicola. The lowest number of root-gall was found in IR 26. Of the 19 species plants tested, soybean, pea common bean, france bean, cabbage, and sugarcane var. Ps 56 were attacked by M. graminicola. The survey results indicated that 15 species of weeds were invaded by M. graminicola, i.e. Coix lacrymajobi, Comelina nudiflora, Cyperus flavidus, C. iria, Echinochloa colona, Eragrotis amabilis, Fimbristylis pilosa, Ichaimum mutichum, Leersia hexandra, Ludwigia adscendens, L. peruviana, Marsilea crenata, Monochoria vaginalis, Polygonum barbatum, and Stagnima sp. The highest populatiom of M. graminicola was found on E. colona.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9300
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9303
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Fluktuasi Populasi Wereng Coklat (Nilaparvata lugens Stal) di Kalitirto Yogyakarta Selama 10 Musim Padi
Untung, Kasumbogo
Fakultas Pertanian
Universitas Gadjah Mada
-
Population observations of the brown planthopper and its predators were conducted at Kalitirto Agriculture Experimentation Station, Yogyakarta during 10 seasons from 1986/1987 Planting Season up to 1991/1992. Five rice varieties were planted under randomized completely block design consisted of one susceptible varieties (IR 36 and IR 64). No pesticides applied during the experimentation. The data showed that BPH populations were constantly low and under subeconomic condition. The BPH populations tend to decrease from first season to the following seasons. The populations of BPH were fully controlled by the population of predators complex. The total of predator populations always surpasses BPH population in every season. The ratio of predators and BPH’s population were increasing as planting seasons went along. The level of BPH resistance of rice varieties do not affect the fluctuation of BPH population and the total predators and BPH populations ratio.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9303
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9305
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Various Stages of Pink Fungus (Upasia salmonicolor) in Java
Tjokrosoedarmo, Ambarwati Harsojo
Fakultas Pertanian
Universitas Gadjah Mada
pink fungus; Corticiaceae; Basidiomycetes; Necator
Pink fungus in Java is classified as Upasia salmonicolor (Basidiomycetes: Corticiaceae) and its anamorph is Necator decretus. This fungus is a serious pathogen which attacks many woody plants. The pink fungus in Java exhibits five developmental stages on the surface of the host bark: I. An initial cobweb stage as thin, white, cobweb-like hyphal layer, which creeps over the surface of the bark, during which penetration of the host occurs; II. Pseudonodular stage, as conical white pustules occurring only on lenticels or cracks, and only on shady side of branches; III. Teleomorph, occurs as pink incrustation and pink pustules on shady side of branches; IV. Nodular stages, as globose white pustules occurring chiefly on intact bark, but also on the lenticels or cracks, on exposed side of branches; V. Anamorph, as small orange-red sporodochium, on exposed side of branches.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9305
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9307
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Peran Infeksi Jamur dalam Memperparah Kerusakan Buah Kakao Akibat Serangan Helopeltis sp.
Martoredjo, Toekidjo
Fakultas Pertanian
Universitas Gadjah Mada
Ardy, Djungdjunan
Fakultas Pertanian Universitas Bengkulu
Hermansyah, Hermansyah
Fakultas Pertanian Universitas Bengkulu
Sunardi, Tri
Fakultas Pertanian Universitas Bengkulu
cocoa; pathogenicity; combine inoculation; Botryodiplodia theobromae; Colletotrichum gloeosporioides; Helopeltis theobromae
Cocoa pod devastation caused by combine inoculations between pest and pathogen., either between Helopeltis theobromae and Botryodiplodia theobromae or between H. theobromae and Colletotrichum gloeosporioides, more sever than total single inoculation only by pest (H. theobromae) or pathogen (B. theobromae and C. gloeosporioides).
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9307
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9316
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Virulensi beberapa Isolat Colletotrichum musae terhadap Buah Pisang dan Ketahanan Beberapa Buah Kultivar Pisang terhadap Colletotrichum musae
Martoredjo, Toekidjo
Fakultas Pertanian
Universitas Gadjah Mada
banana; resistancy; Colletotrichum musae
Colletotrichum musae was isolated from banana cultivar of Ambon Hijau, Ambon Kuning, Emas, Gabu, Kepok, Kidang, Raja Gintung, Raja Sepet, Raja Temen, Raja Uter, Susu, and Tanduk. Virulency test showed that Raja Sepet, Raja Temen, and Susu C. musae isolates much more virulent than Tanduk isolate, while Ambon Kuning isolates its virulent is between two those groups. So Raja Sepet isolate is the highest virulent isolate and Tanduk isolate is the lowest virulent one. Resistancy test showed that Raja Temen, Ambon Hijau, and Raja Uter banana cultivars are much more resistant than Raja Gintung and Tanduk banana cultivars, while Raja Lumut, Kepok, Susu, Ambon Kuning, and Raja Uter banana cultivars their resistancy are between two those groups. So Ambon Hijau banana cultivar is the highest resistant banana cultivar and Tanduk banana cultivar is the lowest resistant one.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9316
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9317
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Propagation and Purification of Baculovirus oryctes Huger
Somowiyarjo, Susamto
Faculty of Agriculture
Universitas Gadjah Mada
Sumardiyono, YB
Faculty of Agriculture Universitas Gadjah Mada
Hartono, Sedyo
Faculty of Agriculture Universitas Gadjah Mada
Triharso, Triharso
Faculty of Agriculture Universitas Gadjah Mada
Kobayashi, Jun
Mie University
Baculovirus oryctes; transmission; purification
An isolate of Baculovirus oryctes, a possible biological control agent for coconut beetle (Oryctes rhinoceros Huger) from East Java was propagated and purified. The virus could be transmitted by feeding the imago with 10% sucrose containing virus from homogenate of infected beetles. Effectivity of virus to 9 healthy females by sexual copulation. Virus be succesfully purified by a method of Payne.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9317
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9318
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Properties of Oryctes Baculovirus Isolated in Indonesia
Kobayashi, Jun
Mie University
Somowiyarjo, Susamto
Faculty of Agriculture Universitas Gadjah Mada
Baculovirus oryctes; electrophoresis
An Indonesian isolate of Oryctes baculovirus was purified from infected midguts of the rhinoceros beetle (Oryctes rhinoceros) by centrifugation on a 10–40% (w/v) sucroese gradient. Morphological features of nucleocapsid including a tail-like projection were very same as those previously reported. Both protein components of purified particles and restriction fragment electrophoresis profiles of viral DNA were similar to those of their isolates of Oryctes baculovirus, although there were some differences.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9318
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9349
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Elektron Mikroskopi dan Imunogenisitas Baculovirus oryctes Isolat Yogyakarta
Sumardiyono, Y. B.
Fakultas Pertanian
Universitas Gadjah Mada
Baculovirus oryctes; polyclonal antibody
Palm rhinoceros beetle (Oryctes rhinoceros) was infected per os with Yogyakarta isolate of Baculovirus oryctes in laboratory condition. Midguts of infected beetle obtained were then extracted for further nucleoprotein purification by centrifugation method. Electron microscopy studies on purified nucleoprotein revealed rod-shape viruses with rounded end measured 190×94 nm in average. One end of the particle showed tail-like structure. Antibodies against the virus were obtained by immunization to rabbit, and reacted against either purified virus or extract of infected beetle, but not against extract of healthy beetle.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9349
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9350
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Ketahanan Beberapa Jamur Patogen terhadap Fungisida
Sumardiyono, Christanti
Fakultas Pertanian
Universitas Gadjah Mada
Pusposendjojo, Nursamsi
Fakultas Pertanian
Universitas Gadjah Mada
Trisnowati, Sri
Fakultas Pertanian
Universitas Gadjah Mada
contact fungicides; systemic fungicides; resistance
Chemical control of plant pathogens have been done for a long time using contact and systemic fungicides. Resistance of the pathogens to fungicides may caused failure of disease control program. Studies by in vitro, in green house and fields were done at Yogyakarta to know the fungal which were resistant to several fungicides after treatment. The pathogen tested to fungicides were Colletotrichum capsici on red pepper to propineb, mancozeb, mixture of carbendazim and mancozeb, and thiophanate methyl, Alternaria porri on garlic to thiophanate methyl, Phytophthora palmivora on cocoa to Al-fosetyl, metalaxyl, mancozeb, and Copper Oxychloride, and Peronosclerospora maydis on corn to metalaxyl. The study indicated that C. capsici was resistant to propineb, mancozeb, and mixture of carbendazim and mancozeb, but sensitive to thiophanate methyl. A. porri from plant treated with thiophanate methyl indicated resistant to the fungicides. ED50 of Al-fosetyl and metalaxyl on P. palmivora were higher than on mancozeb and copper oxychloride, so that it was resistance strain.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9350
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9351
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Peranan Faktor Cuaca terhadap Infeksi dan Perkembangan Penyakit Bercak Ungu pada Bawang Merah
Hadisutrisno, Bambang
Fakultas Pertanian
Universitas Gadjah Mada
Sudarmadi, Sudarmadi
Fakultas Pertanian
Universitas Gadjah Mada
Subandiyah, Siti
Fakultas Pertanian
Universitas Gadjah Mada
Priyatmojo, Achmadi
Fakultas Pertanian
Universitas Gadjah Mada
purple blotch; climatic factor; Alternaria porri; shallot
Purple blotch disease caused by Alternaria porri (Ell.) Cif. is one of the most important diseases on shallots. The farmers have been using fungicides as a reliable control method, however, the chemical control method has to be considered for the negative effect on the environment and the danger to the other species and causes the resistance to a certain pesticide. Therefore, it is important to develop other method that is safe, effective, and efficient, like the use of climatic data to decide the control strategy. The result of the study on ecology of purple blotch disease carried out at the experimental station in Kramat-Tegal, Kledung-Temanggung, and KP4 Kalitirto in dry and rainy season (1991/1992) suggested that climatic factors played on important role on the daily conidium dissemination of Alternaria porri and on the intensity of purple blotch disease. Daily conidium dissemination which was one of the important component in the epidemy of purple blotch disease was influenced by the temperature, relative humidity, and the wind velocity. Conidium dissemination was occurred both during the day and night and at 10.00 am-14.00 pm when the air temperature and wind velocity were high with low relative humidity, conidium dissemination was maximum. On the other hand, at 22.00 pm – 02.00 am there was minimum conidium dissemination. The result on the effects of leaf wetness period on disease intensity suggested that high humidity was not the only factor caused disease infection but it has to be supported by the presence of thin film water on the leaf surface at least for 4 hours since the attachment of the conidia on the leaves.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9351
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9352
2017-08-15T07:15:09Z
jpti:ART
"951221 1995 eng "
2548-4788
1410-1637
dc
Konsentrasi PEG 6000 dan Senyawa Aditif Buffer Fosfat yang Diperlukan dalam Pemurnian Soybean Mosaic Virus
Sumardiyono, Y. B.
Fakultas Pertanian
Universitas Gadjah Mada
Somowiyarjo, Susamto
Fakultas Pertanian
Universitas Gadjah Mada
Andayani, Wuye Ria
Fakultas Pertanian
Universitas Merdeka
soybean mosaic virus; method; virus purification
The objective of study was to determine the concentration of PEG 6000 for precipitation of virus particles, and additive substance added to the resuspension buffer, during the purification of Soybean Mosaic Virus isolated from Yogyakarta. The result showed that precipitation with PEG 6000 of 6 per cent at final concentration, followed by either two or three cycles differential centrifugation and the virus obatained from each centrifugation resuspended in Phosphate buffer 0.05 M contained NaCl 0.1 M added with 0,005 M Na-EDTA, and then subjected to 10-50 per cent sucrose density gradient centrifugation. The purified virus obtained was infective, with the ultraviolet absorption maximum at 260 nm and minimum at 247 nm, ratio A280/A260 was 0.7343. based on extinction coefficient at 260 nm = 2.4, the yield was 0.306 mg/100 g infected leaves. SDS-PAGE indicating that coat protein molecule weight was 29.71 kD.
Universitas Gadjah Mada
1995-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9352
Jurnal Perlindungan Tanaman Indonesia; Vol 1, No 1 (1995)
eng
Copyright (c) 1995 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9358
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Ekstraksi DNA Phytophthora palmivora Isolat Kelapa
Priyatmojo, Achmadi
Fakultas Pertanian
Universitas Gadjah Mada
Subandiyah, Siti
Fakultas Pertanian
Universitas Gadjah Mada
DNA; Phytophthora palmivora
Coconut isolate of Phytophthora palmivora DNA was extracted from sporangium and mycelium using SDS and Proteinase-K method. Sporangium and mycelium were harvested from liquid and solid culture of Potato Dextrose medium. The result of the study showed that the DNA extracted from sporangium and mycelium of 8 days solid culture was seen as distinct band. On the other hand, the dNA from sporangium and mycelium of 24 days old liquid culture was fragmented with smear band appearance.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9358
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9359
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Keparahan Penyakit Hawar Daun Jingga pada Beberapa Galur dan Varietas Padi
Sudir, Sudir
Balai Penelitian Tanaman Padi
Sukamandi
Suparyono, Suparyono
Balai Penelitian Tanaman Padi
Sukamandi
orange leaf blight; resistance
Disease severity of orange leaf blight (OLB) was observed on several different genotypes of rice in Sukamandi, Pusakanegara, and Batang Research Station during the dry season of 1993. Results indicated, that except in Batang, under natural condition OLB developed well in all locations. Different responses were observed among rice genotypes, indicated that different level of resistance to OLB are available in rice germplasm. Out of 230 rice genotypes observed in bastard population, 4 were rated resistant (disease severity 8.5-10%), 7 were moderately resistant (disease severity 15-20%). No resistant or moderately resistant genotypes were observed among 24 genotypes in yields trials, 16 in adaptability trials, 12 in promising lines demonstration, and 49 in hybrid rice trials.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9359
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9360
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Isolasi Bakteri Inti Es pada Kentang
Arwiyanto, Triwidodo
Fakultas Pertanian
Universitas Gadjah Mada
ice nucleating-active bacteria; potato; frost
Frost injury is one of the limiting factors in potato production in Dieng (2000 m above sea level), Central Java. The damage caused by frost has been recorded since long time ago, however, there is no studies about this matter. The objective of the present study is to isolate ice nucleation active bacteria which reside epiphytically at the surface of potato leaves. Potato and several crop leaves were collected and the ice catalyst was detected from leaf-washing. The bacteria were isolated on Nutrien Agar and Nutrien Agar Glycerol medium. The result indicated that ice catalyst was detected from the leaf washing of potato (Solanum tuberosum L.) and broad bean (Vicia faba L.) but not from others. The ice catalyst was not detected from the extract of surface soil, neither. The ice nucleation active bacteria were successfully isolated from potato leaf and were identical to Erwinia ananas in their bacteriological properties.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9360
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9361
2017-08-15T07:14:39Z
jpti:ART
"960921 1996 eng "
2548-4788
1410-1637
dc
Hama Penggerek Buah Kakao - Kendala Utama Industri Kakao Indonesia dan Saran Pengelolaannya
Wiryadiputra, Soekadar
Pusat Penelitian Kopi dan Kakao
Jember
cocoa pod borer; control strategy
Outbreak of cocoa pod borer has occurred inCentral Sulawesiand other Indonesian provinces since 1991. The reason of the outbreak has not been clearly defined, however, it was presumed that the event look place after tremendous expansion of cocoa plantation in the last two decades. Until December, 1995 the pest has infested 11 provinces including several main cocoa producing areas ofIndonesia. Total cocoa area damaged by the pest is about 40,000 ha. Bioecological aspects and management of the pest were reviewed from some recent literatures. These information should be useful to arrange the control strategy of the pest inIndonesia. Control measures developed in other countries can be adopted directly in handling the pest, especially for short term practices.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9361
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9362
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Pengendalian Penyakit Karat Daun Kopi dengan Ekstrak Teh Hitam
Sumardiyono, Christanti
Fakultas Pertanian
Universitas Gadjah Mada
Agung, Setyo
Fakultas Pertanian
Universitas Gadjah Mada
black tea; Hemileia vastatrix; triadimefon
The research was done to know the efficacy of black tea extract to control coffee leaf rust, the most important disease of Arabica coffee caused by the fungus Hemileia vastatrix B et Br. Black tea was extracted by boiling 50 g of tea in 500 ml of water until 50 ml of solution was left and used as spraying material after 10 time dilution. Influence of black tea extract to urediospores germination was done by spore germination technique. Field experiment was done at Pagilaran Tea Plantation with a susceptible Arabica coffee Kate 26 variety. Coffee plants was sprayed with diluted tea extract eight times with 10 days interval and 0,3% of triadimefon was used as standart fungicide. The result showed that black tea extract inhibited germination of urediospora and reduced germtube length up to 10-4 dilution. The extract of black tea could reduce disease intensity of coffee leaf rust in the field better than triadimefon. Ten days after first spraying, disease intensity was reduced but it increased after 5 times spraying. After 8 times spraying disease intensity on coffee tree sprayed with the black tea extract was lower than that sprayed with tradimefon.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9362
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9363
2017-08-15T07:14:39Z
jpti:ART
"960921 1996 eng "
2548-4788
1410-1637
dc
Kajian Bioekologi Pasteuria penetrans
Mulyadi, Mulyadi
Fakultas Pertanian
Universitas Gadjah Mada
Triman, B.
Fakultas Pertanian
Universitas Gadjah Mada
Rahayu TP, Bambang
Fakultas Pertanian
Universitas Gadjah Mada
bioecology; P. penetrans
In bioecological studies of P. penetrans, six experiments were done i.e. study the nematode hosts of P. penetrans; the effect of temperature, soil moisture, spores storage length, soil chemicals (compound fertilizer, carbofuran, and mancozeb) and methods of application on the pathogenicity of P. penetrans. The research results are as follows: (1) nematode hosts of P. penetrans are M. incognita, M. javanica, and M. graminicola; (2) temperature tested up to 100oC did not affect on the infectivity of P. penetrans; (3) the highest infectivity of P. penetrans was found on soil moisture 45% than on 0%-30%; (4) spores storage for one, two, and three year after effected the infectivity of P. penetrans; (5) treatment with carbofuran, mancozeb, and compound fertilizer did not affect on the infectivity of P. penetrans; and (6) the used of spores of P. penetrans in grounded tomato roots more effective than in soil and water suspension and more efficient than in soil.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9363
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9364
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Penghambatan Penyakit Damping Off (Rebah Semai) pada Semai Pinus dengan Ekstrak Biji Nyiri (Xylocarpus granatum)
Widyastuti, Siti Muslimah
Fakultas Kehutanan
Universitas Gadjah Mada
Xylocarpus granatum; pine damping off disease; botanical fungicide
Forest Development inIndonesiais based on sustainable concept. To support this policy, forest protection must be done based on environmental approach. In this approach the use of synthetic pesticide must be minimized. Consequently it is necessary to find out alternative method to substitute the use of synthetic pesticide. Phytofungicide is one of the alternative for the synthetic pesticide. The aim of the research was to evaluate the potential of nyiri (Xylocarpus granatum Koen) seed as phytofungicide for controlling Fusarium sp., a pathogen of pine damping off disease. Evaluation was done based on the activity of the extracted nyiri seeds collected from Cilacap mangrove in inhibiting the spore germination and germ tube length in the laboratory, and suppressing the disease intensity in green house. The result showed that the extract of nyiri had antifungal activity against the pathogen tested. This is the first report on the activity of nyiri as phytofungicide for plant pathogens.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9364
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9365
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Kloning Gen Coat Protein SMV dengan Pendekatan PCR
Sismindari, Sismindari
Pusat Antar Universitas Bioteknologi
Universitas Gadjah Mada
Sudjadi, Sudjadi
Pusat Antar Universitas Bioteknologi
Universitas Gadjah Mada
SMV; coat protein
SMV is RNA virus had to be converted to the first strand DNA using oligo (dT) and murine reverse transcriptase. Amplification of coat protein gene region was carried out by Polimerase Chain Reaction (PCR) with two primers, 5’-TACATCTTGGAACCAATGGCAGGCAAGGAGAGAAG-3’ and 5’-AGGACAACAAACATTGCCG-3’. The PCR product was blund ended by S1 nuclease, and ligated into SmaI digested pUC18 and phosphatase treatment by calf intestine phosphatase. Ligation mixture was used to transform E. coli DH5α. Recombinant plasmid was digested with EcoRI and HindIII showed 0,8 kb fragment. Southern blot analysis at high strigency using PCR using PCR product as a probe shows that the 0,8 kb fragment produced intense signal.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9365
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9366
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Jamur Upas (Upasia salmonicolor) pada Daun Kopi di Pagilaran
Tjokrosoedarmo, Ambarwati Harsojo
Fakultas Pertanian
Universitas Gadjah Mada
fungus on coffee leaves; cobweb stage of pink fungus; teleomorph
The result of this study showed that most of fungus as thin mycelial layer on the coffee leaves were connected with pink fungus on the branch. The microscopic study showed the hyaline mycelia producing perpendicular branches, and anastomose easily; the hyphal cells contain one to four nuclei. The anatomy of pink incrustation of fungus composed of four layers: 1. basal layer; 2. intermediate layer; 3. subhymenial layer; and 4. hymenial layer. From the results of both field and laboratory studies it is concluded that the fungus on the coffee leaf is actually the cobweb stage of pink fungus occurring on the leaves, and it is notorious fungus because it may act as inoculum source of pink disease.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9366
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9367
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Penemuan Jerami sebagai Bahan Baku Budidaya Jamur Tiram Putih (Pleurotus ostreatus) di Fakultas Pertanian UGM
Tjokrosoedarmo, Ambarwati Harsojo
Fakultas Pertanian
Universitas Gadjah Mada
-
-
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9367
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9377
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Penyakit Mosaik Pisang, Reaksi Inang, dan Pemurnian Virus
Sulandari, Sri
Fakultas Pertanian
Universitas Gadjah Mada
Purnawan, Edy
Fakultas Pertanian
Universitas Gadjah Mada
CMV; banana diseases; host reaction
Banana var. Koja showed mosaic symptoms sontained in Kotagede, Yogyakarta used in the studies. The virus then isolated with single lesion method on Chenopodium amaranticolor, and propagated on Nicotiana tabacum var. Xanthi. The result of host reaction study showed that infected Nicotiana tabacum var. Xanthi, N. tabacum var. Samsun, Cucumis sativus, and Lycopersicon esculentum produced systemic symptoms, while Chenopodium amaranticolor produced necrotic local lesions. Infected Vigna unguiculata did not produce any symptom. The purified virus obtained with the method of Scon showed A260/A280=1.21, with single protein m.w. 24.0 ×103. Virus showed serological relationship to CMV. All the result indicated that causal agent of banana mosaic disease has some similar properties with CMV.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9377
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9378
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Faktor Sosial Ekonomi yang Mempengaruhi Petani dalam Penerapan Pengendalian Hama Terpadu (PHT)
Hariadi, Sunarru Samsi
Fakultas Pertanian
Universitas Gadjah Mada
-
For spreading concept of Integrated Pest Management (PHT), Agricultural Disease and Plant Controllers (PHP) and Field Agricultural Extension Workers (PPL) worked together for agricultural extension about integrated pest management through Field School of Integrated Pest Management (SLPHT), in the hope that farmers could adopt PHT in their rice field. The result of the research in Central Java and Yogyakarta Special Region Province showed that social economic factors namely farmers income, farmers knowledge about PHT, farmers attitude about PHT, and farmers participation in SLPHT influenced adoption of PHT.
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9378
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9379
2017-08-15T07:14:39Z
jpti:ART
"960919 1996 eng "
2548-4788
1410-1637
dc
Peran Infeksi Jamur dalam Memperparah Kerusakan Buah Kakao Akibat Serangan Helopeltis sp. Jurnal PTI Vol. 1 No. 1 Hal. 28-32
Suparno, Teddy
Fakultas Pertanian
Universitas Bengkulu
Ulasan Balik Artikel (Tanpa Abstract)
Universitas Gadjah Mada
1996-09-19 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9379
Jurnal Perlindungan Tanaman Indonesia; Vol 2, No 1 (1996)
eng
Copyright (c) 1996 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9383
2017-08-15T07:01:53Z
jpti:ART
"110728 2011 eng "
2548-4788
1410-1637
dc
Analisis Variabilitas Genetik Rigidoporus microporus (Jamur Akar Putih) pada Karet dengan Teknik PCR-RFLP Fragment ITS
Novianti, Ria
Magister Biologi
Universitas Kristen Satya Wacana
Salatiga
Semangun, Haryono
Magister Biologi
Universitas Kristen Satya Wacana
Salatiga
Karwur, Ferry F.
Magister Biologi
Universitas Kristen Satya Wacana
Salatiga
Martosupono, Martanto
Magister Biologi
Universitas Kristen Satya Wacana
Salatiga
genetic variability; PCR-RFLP Fragment ITS Technique; Rigidoporus microporus; white root rot of rubber
The eleven isolates studied fell into two groups, which showed that the fungus did not have high genetic variability. Isolates from diseased rubber trees in shorter vicinities, which were due to pathogen’s vegetative spread through root contact, have close genetic relationship. Meanwhile isolates from far apart trees, either in one estate or from different islands, does not necessarily have distant genetic relationship. It might be due to the fact that long distance dispersal of the disease could also due to rhizomorph contaminating rubber stumps. PCR-RFLP Fragment ITS Techniques can be applied to study genetic relationship of Rigidoporus microporus isolates. It is expected that the technique will be applied with more isolates from different provinces by using additional different restriction enzymes.
Universitas Gadjah Mada
2011-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9383
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 1 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9384
2017-08-15T07:01:53Z
jpti:ART
"110728 2011 eng "
2548-4788
1410-1637
dc
Pemanfaatan Beberapa Kaldu Hewan sebagai Bahan Formula Cair Pseudomonas fluorescens P60 untuk Mengendalikan Sclerotium rolfsii pada Tanaman Mentimun
Soesanto, Loekas
Fakultas Pertanian
Universitas Jenderal Soedirman
Purwokerto
Mugiastuti, Endang
Fakultas Pertanian
Universitas Jenderal Soedirman
Purwokerto
Rahayuniati, Ruth Feti
Fakultas Pertanian
Universitas Jenderal Soedirman
Purwokerto
animal broth; cucumber; Pseudomonas fluorescens P60; Sclerotium rolfsii
A research aiming at knowing the potency of several animal broths as organic liquid formula of Pseudomonas fluorescens P60, soaking period of Sclerotium rolfsii sclerotia, and its application method on cucumber stem-end rot was done. Completely randomized design and randomized block design both arranged by factorial were used for in vitro and in planta tests, respectively. The first factor was six kinds of animal broth, i.e., golden snail, local chicken,broiler chicken, catfish, cow bone, and rat. The second one for in vitro test was the soaking period in the Pseudomonas fluorescens P60 formula, i.e., 0, 1, 10, and 100 hours and for in planta one was application methods, i.e., seed soaking or crop spraying. Result of the research showed that the best animal broth as liquid formula for Pseudomonas fluorescens P60 was golden snail broth indicated by suppression of sclerotial germination up to 97.4% after soaking for 100 hours. The best application method to suppress the disease was spraying method showed by suppressed of sclerotial germination, longer incubation period, and suppressed disease incidence and sclerotial late population of 55.79, 147.35, 66.67, and 59.68%, repectively. Spraying the formula could also increase crop height difference, fresh and dry weight of crop, fresh and dry weight of root, and root length to 146.83, 86.62, 112.5, 87.88, 140, and 159.68%, respectively.
Universitas Gadjah Mada
2011-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9384
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 1 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9389
2017-08-15T07:01:53Z
jpti:ART
"110728 2011 eng "
2548-4788
1410-1637
dc
Aktivitas Ngengat Scirpophaga incertulas di Wilayah Kabupaten Klaten
Yunus, Mohammad
Fakultas Pertanian
Universitas Tadulako
Palu
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
Yogyakarta
Wijonarko, Arman
Fakultas Pertanian
Universitas Gadjah Mada
Yogyakarta
Soesilohadi, RC Hidayat
Fakultas Biologi
Universitas Gadjah Mada
Yogyakarta
moth activity; Scirpophaga incertulas; stem borer
The activities of Scirpophaga incertulas adult from Klaten Regency were studied from April to November 2010. The purposes of this study were to observe the activity of moth after adult emergence, their flying activity, and eggs oviposition. Two hundred pupae were collected from the field, then incubated in the laboratory and observed every hour for 72 hours. Flying activity was observed every hour by counting the number of moths that were found in the light traps. This observation was replicated three times during the dark; from 6:00 p.m. to 6:00 a.m. Oviposition activity of moths was observed by infesting twenty females of insect on the rice plants planted in the polybag and covered with plastic sheet. This oviposition activity was also observed every hour during the dark; from 6:00 p.m. to 6:00 a.m. in order to get the number of egg-laying moths. The results showed that the emergence of S. incertulas moth was mainly from 2:00 to 4:00 a.m., the flying activity was detected mostly from 6:00 p.m. to 1:00 a.m., and the moths ovipositing activity was mainly occured from 7:00 to 11:00 p.m. In addition, we found that the intensity of light affected the number of moths coming into the light trap. The light exposed from the 23 Watt lamp (1,500 lumen) was twice more effective in attracting the moths than the 11 Watt lamp (700 lumen).
Universitas Gadjah Mada
2011-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9389
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 1 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9390
2017-08-15T07:01:53Z
jpti:ART
"110728 2011 eng "
2548-4788
1410-1637
dc
Karakterisasi dan Deteksi Cepat Bakteri Penyebab Penyakit Darah pada Pisang
Edy, Nur
Fakultas Pertanian
Universitas Tadulako
Palu
Subandiyah, Siti
Fakultas Pertanian
Universitas Gadjah Mada
Yogyakarta
Sumardiyono, Christanti
Fakultas Pertanian
Universitas Gadjah Mada
Yogyakarta
Widada, Jaka
Fakultas Pertanian
Universitas Gadjah Mada
Yogyakarta
Blood Disease Bacterium; characterization; Polymerase Chain Reaction
Blood disease of banana is one of the most serious banana disease in Indonesia. Although the disease has became the subject of quarantine it eventually spread and found in most provinces in Indonesia. The aim of this research were to identify the blood disease bacterium (BDB) using morphological observation, biochemical assay, pathogenicity testing of hosts range using infectivity titration and rapid detection by Polymerase Chain Reaction (PCR). The results showed that the blood disease bacterium could be differentiated from Ralstonia solanacearum race 2, the causal agent of Moko disease and R. solanacearum tobacco isolates. BDB isolates were not able to hydrolyze gelatin, Tween 80, starch, and were not able to produce nitrite from nitrate. They were only able to produce acid from galactose and glycerol. The pathogenicity test indicated that the BDB was only able to infect the banana/plantain and was not able to infect tomato, eggplant, and chili. Rapid detection using PCR method showed that the 121F/R primers was able to amplify the BDB genome and was not able to amplify the genome of R. solanacearum tobacco isolates.
Universitas Gadjah Mada
2011-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9390
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 1 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9396
2017-08-15T07:01:53Z
jpti:ART
"110728 2011 eng "
2548-4788
1410-1637
dc
Pengendalian Hayati Penyakit Layu Fusarium Pisang (Fusarium oxysporum f.sp. cubense) dengan Trichoderma sp.
Sudirman, Albertus
Politeknik Negeri Lampung
Sumardiyono, Christanti
Fakultas Pertanian
Universitas Gadjah Mada
Widyastuti, Siti Muslimah
Fakultas Kehutanan
Universitas Gadjah Mada
biological control; Trichoderma sp.; Fusarium wilt of banana; Foc
The aim of this research was to study the inhibiting ability of Trichoderma sp. to control fusarium wilt of banana in greenhouse condition. The experiments consisted of the antagonism test between Trichoderma sp. and Fusarium oxysporum f.sp. cubense (Foc) in vitro using dual culture method and glass house experiment which was arranged in 3×3 Factorial Complete Randomized Design. First factor of the latter experiment was the dose of Trichoderma sp. culture (0, 25, and 50 g per polybag), second factor was time of Trichoderma culture application (2 weeks before Foc inoculation, at same time with Foc inoculation and 2 weeks after Foc inoculation). Trichoderma sp. was cultured in mixed rice brand and chaff medium. The disease intensity was observed with scoring system of wilting leaves (0–4). The results showed that Trichoderma sp. was antagonistic against Foc in vitro and inhibited 86% of Foc colony development. Mechanism of antagonism between Trichoderma sp. and Foc was hyperparasitism. Trichoderma hyphae coiled around Foc hyphae. Lysis of Foc hyphae was occurred at the attached site of Trichoderma hyphae on Foc hyphae. Added banana seedling with Trichoderma sp. Culture reduced disease intensity of Fusarium wilt. Suggested dose of Trichoderma culture application in glass house was 25 g/polybag, given at the same time with Foc inoculation.
Universitas Gadjah Mada
2011-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9396
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 1 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9397
2017-08-15T07:01:53Z
jpti:ART
"110728 2011 eng "
2548-4788
1410-1637
dc
Prevalensi Nematoda Parasit pada Pertanaman Pisang di Daerah Istimewa Yogyakarta
Indarti, Siwi
Fakultas Pertanian
Universitas Gadjah Mada
Rahayu TP, Bambang
Fakultas Pertanian
Universitas Gadjah Mada
Subandiyah, Siti
Fakultas Pertanian
Universitas Gadjah Mada
Indarti, Lilis
Fakultas Pertanian
Universitas Gadjah Mada
banana; distribution; parasitic nematodes, prevalence
A study to determine the prevalence and distribution of plant parasitic nematodes associated with banana was undertaken in banana growing areas at four districts (Bantul, Gunung Kidul, Kulon Progo, and Sleman) of Yogyakarta Special Province. Seven genera of plant parasitic nematodes were found on these area: Criconemoides, Helicotylenchus, Hoplolaimus, Meloidogyne, Pratylenchus, Radopholus, and Rotylenchulus. Genera Hoplolaimus and Meloidogyne were distributed at all districts and occurring in soil and root samples of banana cultivars, Ambon, Kepok, Koja, Klutuk, Raja, Tanduk, and Uter, respectively. Four genera, Hoplolaimus, Meloidogyne, Pratylenchus, and Radopholus were dominant and were found with high level of population than the others on each district. Pratylenchus mostly was found on banana cv Kepok with average population 348,2–2057,3 nematodes on total samples of 5g banana root and 100g soil.
Universitas Gadjah Mada
2011-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9397
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 1 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9762
2017-08-15T07:01:53Z
jpti:ART
"110728 2011 eng "
2548-4788
1410-1637
dc
Toksisitas Abu Terbang Kayu terhadap Nilaparvata lugens dan Kompleks Predatornya
Wagiman, Fransiscus Xaverius
Fakultas Pertanian
Universitas Gadjah Mada
Fauzana, Hafiz
Fakultas Pertanian
Universitas Riau
Prasetyani, Kartika Yoga
Fakultas Pertanian
Universitas Gadjah Mada
Nilaparvata lugens; paddy; wood fly-ash
The brown planthopper (Nilaparvata lugens) is currently a very noxious pest insect and it threatened the self sufficience of rice in Indonesia. Innovation of control technology is urgently needed to be developed. Objective of the study was to determine mortality-effect of the wood fly-ash obtained from pulp factory in Riau against N. lugens and its predator complex. A bioassay of the wood fly-ash was done in the laboratory to determine its activity against the test insects. A randomized complete block design (RCBD) experiment with three treatments —fly-ash 40 kg/ha, botanical insecticide containing of root extract of Derris eliptica, and control— with five replications was conducted at a paddy field in Sleman District Yogyakarta. Results showed that the wood fly-ash was toxic against N. lugens: LD50 at 72 hours after treatment were 4.84 and 43.26 g/m2, respectively. As compared with control and botanical insecticide of D. eliptica, the wood fly-ash was significantly more effective for controlling the N. lugens but relatively safe against predator complex. Dusting of the wood fly-ash at rate of 40 kg/ha effectively reduced population of N. lugens within 2 days but did not significantly reduce population of the predator complex namely spiders (Lycosa sp., Oxyopes sp., Callitrichia sp., Argiope sp., and Tetragnatha sp.), Coccinellidae (Menochilus sexmaculatus and Verania sp.), Cicindelidae (Ophionea sp.), and Staphylinidae (Paederus fuscipes).
Universitas Gadjah Mada
2011-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9762
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 1 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9811
2017-08-25T05:01:43Z
jpti:ART
"111221 2011 eng "
2548-4788
1410-1637
dc
Pengaruh Konsentrasi Subletal Deltametrin terhadap Nutrisi dan Pertumbuhan Tanaman Padi
Ratna, Yuni
Fakultas Pertanian
Universitas Jambi
Trisyono, Y. Andi
Fakultas Pertanian
Universitas Gadjah Mada
Witjaksono, Witjaksono
Fakultas Pertanian
Universitas Gadjah Mada
Indradewa, Didik
Fakultas Pertanian
Universitas Gadjah Mada
deltamethrin, plant growth, plant nutrition, sublethal concentration; konsentrasi subletal, nutrisi tanaman, pertumbuhan tanaman
Increasing the reproductive capacity through increasing plant growth and nutrition is one plausible mechanism of resurgence. This research was intended to determine the effect of deltamethrin on plant vigor and nutrition contents. The experiment was carried out outdoor. The treatments tested were deltamethrin (50 ppm), buprofezin (100 ppm), and control (water). Insecticide applications were applied one time (at age 26 d or 50 d) and two times (at age 26 and 50 d). Deltamethrin applications as many as two times did not increase the total chlorophyll and the photosynthesis rate, nutrients (total nitrogen, total protein, total sugar, total reducing sugar at aged 26 d, and sucrose), growth (plant height and number of tillers), and yield (number of panicles). However, application of deltamethrin at aged 26 d
increased the amount of asparagine. Asparagine is known to be associated with the feeding rate of Nilaparvata lugens stimulation. Therefore, increasing level of asparagine after application of deltamethrin at sublethal concentration was considered as one of the factors that might be involved in the mechanism of N. lugens resurgence.
Salah satu mekanisme resurjensi adalah peningkatan reproduksi hama melalui peningkatan nutrisi dan pertumbuhan tanaman. Penelitian ini dimaksudkan untuk melihat pengaruh deltametrin terhadap kandungan nutrisi dan vigor tanaman. Pengujian dilakukan di lapangan. Perlakuan yang diuji adalah deltametrin 50 ppm, buprofezin 100 ppm, dan kontrol (air). Aplikasi insektisida dilakukan satu kali masing-masing pada umur tanaman 26 dan 50 hst dan dua kali pada umur 26 dan 50 hst. Aplikasi deltametrin sebanyak dua kali tidak meningkatkan total klorofil dan laju fotosintesis, nutrisi (total nitrogen, total protein, total gula, total gula reduksi pada 26 hst, dan sukrosa) kecuali asparagin, pertumbuhan (tinggi tanaman dan jumlah anakan), dan hasil (jumlah malai) tanaman. Oleh karena asparagin berperan sebagai pemacu laju makan Nilaparvata lugens, maka peningkatan kadar asparagin tanaman setelah aplikasi konsentrasi subletal deltametrin diduga sebagai salah satu faktor yang terlibat dalam mekanisme resurjensi N. lugens
Universitas Gadjah Mada
2011-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9811
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 2 (2011)
eng
Copyright (c) 2011 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9813
2017-03-27T05:34:00Z
jpti:ART
"111221 2011 eng "
2548-4788
1410-1637
dc
Optimasi Metode PCR untuk Deteksi Pectobacterium carotovorum, Penyebab Penyakit Busuk Lunak Anggrek
Joko, Tri
Fakultas Pertanian
Universitas Gadjah Mada
Kusumandari, Nanda
Fakultas Pertanian
Universitas Gadjah Mada
Hartono, Sedyo
Fakultas Pertanian
Universitas Gadjah Mada
detection, PCR optimization, Pectobacterium carotovorum, soft rot disease; deteksi, optimasi PCR, penyakit busuk lunak
Soft rot is one of the most important diseases of orchids caused by Pectobacterium carotovorum. The conventional methods for the detection of pathogen is tedious and time consuming. In recent years, numerous molecular diagnostic approaches for the detection of P. carotovorum have been developed, including various PCR-based assays. Optimization of PCR technique to DNA amplification is essential for time and material efficiency, which will make detection to be rapid and more appropriate. The purposes of this study were to decide concentration of DNA and primer, and also the concentration of bacterial pure cultures and primer to amplify 16S rRNA gene fragment. Optimization of PCR was done by using various concentration of DNA, pure cultures of bacteria, and primer to amplify the 16S rRNA gene sequence. The results showed that the most optimum concentration to amplify 16S rRNA gene sequence at DNA and primer concentration were 63,4 ng/µl and 10 pmol, while pure cultures and primer concentrations were at 8×109 CF U/ml and 10 pmol respectively.
Penyakit busuk lunak yang disebabkan oleh Pectobacterium carotovorum merupakan salah satu penyakit penting pada tanaman anggrek. Deteksi patogen secara cepat dan akurat dapat dilakukan secara molekular menggunakan teknik Polymerase chain reaction (PCR). Optimasi metode PCR perlu dilakukan untuk mengefisienkan waktu dan penggunaan bahan sehingga proses deteksi dapat dilakukan dengan cepat dan tepat. Penelitian ini bertujuan untuk menentukan konsentrasi DNA dengan primer maupun konsentrasi kultur murni bakteri dengan primer yang paling tepat untuk mendapatkan fragmen gen 16S rRNA. Optimasi PCR dilakukan menggunakan beberapa variasi pengenceran pada DNA, kultur murni bakteri, dan primer untuk mengamplifikasi gen 16S rRNA. Hasil penelitian menunjukkan bahwa konsentrasi yang paling optimal untuk mengamplifikasi gen 16S rRNA yaitu DNA dan primer masing-masing sebesar 63,4 ng/µl dan 10 pmol, sedangkan konsentrasi kultur murni dan primer sebesar 8×109 CFU/ml dan 10 pmol.
Universitas Gadjah Mada
2011-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9813
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 2 (2011)
eng
Copyright (c) 2016 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9815
2017-03-27T05:36:21Z
jpti:ART
"111221 2011 eng "
2548-4788
1410-1637
dc
Ketahanan Relatif Enam Belas Nomor Klon Teh PGL terhadap Serangan Empoasca sp.
Wagiman, F.X.
Fakultas Pertanian
Universitas Gadjah Mada
Triman, Bellarminus
Fakultas Pertanian
Universitas Gadjah Mada
Empoasca, PGL clone, resistance, tea; ketahanan, klon PGL, teh.
The relative resistance of sixteen selected PGL tea clones against Empoasca sp. had been studied at tea estate of Pagilaran. Six selected and superior tea clones were PGL 4, 6, 9, 10, 11, 15, and ten other selected clones were PGL1, PGL2, PGL3, PGL5, PGL7, PGL8, PGL12, PGL13, PGL14, dan PGL16. Growth stage of the test tea-plants was productive stage, hence it was already infested by Empoasca sp.within several years. The study was conducted in the dry season of September 2011−November 2011, in which the climatic conditions support the increase of pest populations. Moderate level of pest populations was appropriate for conducting the research. Therefore, afdeling Pagilaran was chosen as a research site because of its moderate level of Empoasca sp. population (3.74 individuals/20 sweepnets), while in the afdeling Andongsili the population was low (1.70 individuals/20 sweepnets) and in afdeling Kayulandak was too high (9.81 individuals/20 sweepnets). Resistance criterion was developed based on statistical-analysis result of the pest population. Results showed that all PGL clones were attacked by Empoasca sp. However, PGL 4 was consistently the most sensitive and PGL 15 was the most resistant, while others showed moderate resistance against the pest attack.
Ketahanan relatif enam belas nomor terpilih klon teh PGL terhadap serangan Empoasca sp. telah dikaji di kebun teh Pagilaran. Enam nomor klon terpilih dan unggul adalah PGL4, PGL6, PGL9, PGL10, PGL11, PGL15, dan 10 nomor terpilih lainnya adalah PGL1, PGL2, PGL3, PGL5, PGL7, PGL8, PGL12, PGL13, PGL14, dan PGL16. Stadia pertumbuhan tanaman teh uji adalah stadia produksi sehingga telah beberapa tahun mengalami serangan Empoasca sp. Kajian dilaksanakan dalam musim kemarau selama bulan September 2011–November 2011, ketika kondisi iklim mendukung peningkatan populasi hama ini. Tingkat populasi hama yang moderat sesuai untuk melakukan kajian. Afdeling Pagilaran dipilih sebagai arena kajian karena tingkat populasi Empoasca sp. moderat (3,74 ekor/20 ayunan jaring serangga). Sementara itu di afdeling Andongsili populasi hama ini rendah (1,70 ekor/20 ayunan jaring serangga) dan di afdeling Kayulandak sangat tinggi (9,81 ekor/20 ayunan jaring serangga). Kriteria ketahanan ditentukan berdasarkan hasil analisis statistik populasi Empoasca sp. Hasil kajian menunjukkan bahwa semua klon PGL terserang oleh Empoasca sp., tetapi PGL 4 konsisten paling peka dan PGL 15 paling tahan, sementara 14 klon lain menunjukkan ketahanan moderat terhadap serangan hama ini.
Universitas Gadjah Mada
2011-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9815
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 2 (2011)
eng
Copyright (c) 2016 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9816
2017-03-27T05:37:36Z
jpti:ART
"111221 2011 eng "
2548-4788
1410-1637
dc
Penyakit-Penyakit Penting Buah Naga di Tiga Sentra Pertanaman di Jawa Tengah
Wibowo, Arif
Fakultas Pertanian
Universitas Gadjah Mada
Widiastuti, Ani
Fakultas Pertanian
Universitas Gadjah Mada
Agustina, Wahyu
Fakultas Pertanian
Universitas Gadjah Mada
DIY and Central Java, dragon fruit, important diseases; buah naga, Jawa Tengah, penyakit penting
The objective of this study was to identify the causal agent of some dragon fruit disease emerging in Daerah Istimewa Yogyakarta (DIY) and Central Java. Samples were taken from the dragon fruit plantation from the district of Sleman and Kulonprogo, Province of Daerah Istimewa Yogyakarta as well as Magelang, Province of Central Java. Isolation of pathogen from symptomatic plant tissue was performed on Potato Dextrose Agar (PDA) for fungi and Nutrient Agar (NA) for bacteria and continued with Koch's postulates testing. The results of field observation showed that the disease commonly occured in all 3 plantations of dragon fruit were stem rot caused by Erwinia sp. and scab caused by Pestalotiopsis sp. Other miscellaneous diseases found among the plantations were brown spot (Fusarium sp.), anthracnose (Colletotrichum sp.), mosaic that might be caused by Cactus Virus X, root knotnematode (Meloidogyne sp.), black rot and red spot which were still unidentified.
Penelitian ini bertujuan untuk mengetahui penyakit-penyait penting pada tanaman buah naga yang ditanam pada sentra pertanaman buah naga di Propinsi Daerah Istimewa Yogyakarta (DIY) dan Jawa Tengah, serta untuk mengidentifikasi penyebab penyakit penting tersebut. Sampel tanaman buah naga diambil dari pertanaman buah naga di Kabupaten Sleman dan Kulon Progo untuk Provinsi DIY serta Magelang untuk Propinsi Jawa Tengah. Isolasi patogen dari jaringan tanaman bergejala dilakukan pada medium Potato Dextrose Agar (PDA) untuk jamur dan Nutrient Agar (NA) untuk bakteri serta dilanjutkan dengan uji Postulat Koch. Hasil pengamatan di lapangan menunjukkan bahwa penyakit yang umum terdapat di 3 lokasi pertanaman buah naga tersebut adalah busuk batang yang disebabkan oleh Erwinia sp. dan kudis yang disebabkan oleh Pestalotiopsis sp. Adapun penyakit-penyakit lain yang dijumpai antara lain bercak coklat (Fusarium sp.), antraknosa (Colletotrichum sp.), mosaik yang kemungkinan disebabkan oleh Cactus Virus X, puru akar (Meloidogyne sp.), serta busuk hitam dan bercak merah yang belum teridentifikasi penyebabnya.
Universitas Gadjah Mada
2011-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9816
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 2 (2011)
eng
Copyright (c) 2016 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9828
2017-03-27T05:39:35Z
jpti:ART
"111221 2011 eng "
2548-4788
1410-1637
dc
Uji Efektivitas Pestisida terhadap Beberapa Patogen Penyebab Penyakit Penting pada Buah Naga (Hylocereus sp.) secara In Vitro
Widiastuti, Ani
Fakultas Pertanian
Universitas Gadjah Mada
Agustina, Wahyu
Fakultas Pertanian
Universitas Gadjah Mada
Wibowo, Arif
Fakultas Pertanian
Universitas Gadjah Mada
Sumardiyono, Christanti
Fakultas Pertanian
Universitas Gadjah Mada
benomil, chemical control, diseases in dragon fruit, streptomycin sulfate; pengendalian kimiawi, penyakit buah naga, streptomisin sulfat
Problem caused by pathogen in Dragon Fruit (Hylocereus sp.) cultivation became very important because it decreased significantly the quantity and quality of the fruit production. This study aims to determine the effectiveness of some pesticides against pathogens that cause diseases of dragon fruit in several plantations in the DIY (Sleman and Kulon Progo) and Central Java (Magelang and Batang). Test of fungicide effectiveness was done in vitro on PDA medium (potato dextrose agar) by poisoned food technique. The fungicides were mancozeb 80 %, methyl tiofanat 70 %, copper hydroxide 80 %, chlorotalonil 75 %, mancozeb 64 % + metalaxyl 4 %, mancozeb karbendazim 73.8 % + 6.8 %,benomyl 50 % at a concentration of 1g/L. The bactericides used were streptomycin sulfate 20 % and oxytetracycline 150 AL with each concentration of 1 g/L and 1 mL /L. The results showed that benomyl 50 % was the most effective fungicide to suppress the growth of Fusarium sp. (brown spot), Colletotrichum sp. (anthracnose) and Pestalotiopsis sp. (scab), followed by mancozeb 73.8 % +karbendazim 6.8 % and 73.8 % mancozeb. Bactericide which was able to suppress the growth of Erwinia sp. (stem rot) was streptomycin sulfate 20 %.
Gangguan patogen pada buah naga (Hylocereus sp.) saat ini menjadi masalah penting karena secara signifikan menurunkan kuantitas dan kualitas hasil panen. Penelitian ini bertujuan untuk mengetahui keefektivan beberapa pestisida terhadap patogen penyebab penyakit-penyakit penting pada tanaman buah naga yang ditanaman pada beberapa sentra pertanaman di Propinsi DIY (Sleman dan Kulon Progo) dan Jawa Tengah (Magelang dan Batang). Uji keefektivan pestisida dilakukan secara in vitro pada medium PDA (potato dextrose agar) dengan metode teknik makanan beracun (poisoned food technique). Fungisida yang dipergunakan adalah mankozeb 80%, tiofanat metil 70%, tembaga hidroksida 80%, klorotalonil 75%, mankozeb 64% + metalaksil 4%, mankozeb 73,8% + karbendazim 6,8%, benomil 50% dengan konsentrasi 1g/L, sedangkan bakterisida yang dipergunakan adalah streptomisin sulfat 20% dan oksitetrasiklin 150 AL dengan konsentrasi masing-masing 1 g/L dan 1 mL/L. Hasil penelitian menunjukkan bahwa dari enam jenis fungisida yang dipergunakan, benomil 50% merupakan fungisida yang paling efektif untuk menekan pertumbuhan Fusarium sp. (bercak cokelat), Colletotrichum sp. (antraknos), dan Pestalotiopsis sp. (kudis), diikuti oleh mankozeb 73,8% + karbendazim 6,8% serta mankozeb 73,8%. Untuk fungisida yang lain, efektifitasnya tidak terlalu tinggi jika dibandingkan dengan perlakuan kontrol. Bakterisida yang mampu menekan perkembangan Erwinia sp. (busuk batang) adalah streptomisin sulfat 20%.
Universitas Gadjah Mada
2011-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9828
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 2 (2011)
eng
Copyright (c) 2016 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9829
2017-03-27T05:41:10Z
jpti:ART
"111221 2011 eng "
2548-4788
1410-1637
dc
Pengendalian Hayati Afid pada Tanaman Cabai Merah dengan Menochilus sexmaculatus
Simanjuntak, Dahlia
Fakultas Pertanian
Universitas Katolik Santo Thomas
Wagiman, F. X.
Fakultas Pertanian
Universitas Gadjah Mada
Prabaningrum, Laksminiwati
Balai Penelitian Tanaman Sayuran
aphid, chilli, Menochilus sexmaculatus, predator, sihalotrin; afid, cabai,
A field trial on biological control of aphids (Homoptera: Aphididae) with Menochilus sexmaculatus (Coleoptera: Coccinellidae) was conducted at red chilli field in Sleman, Yogyakarta, in the planting season of 2010. Second instar was released at rate of 1 larva/250 aphids. The number of predator per plant varied depending on aphid-population density. The effectiveness of the predator was compared with application of sihalotrin 25 g/l at concentration rate of 2 cc/l as much as 500 l/ha. The results showed that effectiveness of the predator application was equal with the insecticide application.
Percobaan lapangan pengendalian hayati Aphis spp. (Homoptera: Aphididae) dengan Menochilus sexmaculatus (Coleoptera: Coccinellidae) dilakukan di lahan cabai merah di daerah Sleman, Yogyakarta, pada musim tanam tahun 2010. Satu ekor larva instar II dilepas pada populasi 250 ekor afid. Banyaknya predator per tanaman bervariasi tergantung kepadatan populasi afid. Keefektifan aplikasi predator dibandingkan dengan perlakuan sihalotrin 25 g/l, konsentrasi 2 cc/l sebanyak 500 l/ha. Hasil kajian menunjukkan bahwa keefektifan aplikasi predator setara dengan aplikasi insektisida
Universitas Gadjah Mada
2011-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9829
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 2 (2011)
eng
Copyright (c) 2016 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9830
2017-03-31T03:36:23Z
jpti:ART
"111221 2011 eng "
2548-4788
1410-1637
dc
Uji Lapangan Formula Cair Pseudomonas fluorescens P60 terhadap Layu Fusarium pada Tanaman Tomat
Soesanto, Loekas
Fakultas Pertanian
Universitas Jenderal Soedirman
Mugiastuti, Endang
Fakultas Pertanian
Universitas Jenderal Soedirman
Rahayuniati, Ruth Feti
Fakultas Pertanian
Universitas Jenderal Soedirman
Manan, Abdul
Fakultas Pertanian
Universitas Jenderal Soedirman
Fusarium wilt, liquid formula, Pseudomonas fluorescens P60, tomato; formula cair, penyakit layu fusarium, tomat
A research aimed at knowing 1) the effect of Pseudomonas fluorescens P60 in liquid formula on Fusarium wilt of tomato, 2) the effect of P. fluorescens P60 in the formula on tomato growth and yield, and 3) P. fluorescens P60 mechanisms on tomata was carried out at tomato field of Selomoyo Village, Kaliangkrik Subdistrict, Magelang Regency at altitude of 826 m above sea level. Randomized block design was used with seven treatments and four replicates. The treatments were control, with P. fluorescens P60 soaked for 15 min and without fungicide, pathogen without P. fluorescens P60 with fungicide (PBG1), pathogen with P. fluorescens P60 without fungicide, pathogen with pouring P. fluorescens P60 1, 3, and 5 times. Result indicated that application of formulated P. fluorescens P60 for 5 times decreased the disease intensity as high as 26.77%, and late population of the pathogen but increased P. fluorescens P60 as high as 4.54×1010 cfu ml-1. P. fluorescens P60 affected growth and yield of tomato. P. Fluorescens P60 induced tomato resistance by increasing qualitatively its phenolic compound content (saponin, tannin, glycoside).
Penelitian dengan tujuan untuk mengetahui: 1) pengaruh Pseudomonas fluorescens P60 dalam formula cair terhadap penyakit layu fusarium pada tanaman tomat, 2) pengaruh P. fluorescens P60 dalam formula cair terhadap pertumbuhan dan produksi tanaman tomat, dan 3) mekanisme P. fluorescens P60 pada tanaman tomat dilakukan di lahan Desa Selomoyo, Kecamatan Kaliangkrik, Kabupaten Magelang dengan ketinggian 826 m di atas permukaan laut. Penelitian menggunakan Rancangan Acak Kelompok (RAK), dengan 7 perlakuan dan jumlah ulangan 4 kali, dan setiap unit terdiri atas 8 tanaman. Perlakuan tersebut meliputi kontrol; dengan P. fluorescens P60 rendam 15 menit dan tanpa fungisida; dengan patogen; tanpa P. fluorescens P60; dengan fungisida (PBG1); patogen, tanpa P. fluorescens P60, tanpa fungisida; patogen, dengan penyiraman P. fluorescens P60 1 kali; patogen, dengan penyiraman P. fluorescens P60 3 kali; dan patogen, dengan penyiraman P. fluorescens P60 5 kali. Pemberian P. fluorescens P60 selama 5 kali memberikan pengaruh sangat nyata dalam menekan penyakit layu fusarium yang disebabkan Fusarium oxysporum. Hal ini ditunjukkan pada penurunan intensitas penyakit sebesar 26,77%, rendahnya kepadatan akhir F. oxysporum serta tingginya nilai kepadatan P. fluorescens P60 sebesar 4,54×1010 unit pembentuk spora/ml. Pengaruh pemberian P. fluorescens P60 belum menunjukkan pengaruh nyata pada komponen pertumbuhan dan hasil. P. fluorescens P60 mampu mengimbas ketahanan tanaman tomat dengan meningkatkan kandungan senyawa fenol (saponin, tanin, glikosida).
Universitas Gadjah Mada
2011-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9830
Jurnal Perlindungan Tanaman Indonesia; Vol 17, No 2 (2011)
eng
Copyright (c) 2016 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9832
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Dampak Andrografolid dan Dua Jenis Insektisida Sintetik sebagai Penghambat Makan Nephotettix virescens, terhadap Transmisi Virus Tungro
Widiarta, I Nyoman
Balai Penelitian Tanaman Padi, Sukamandi
Muhsin, Muhammad
Balai Penelitian Bioteknologi Tanaman Pangan, Bogor
Kusdiaman, Dede
Balai Penelitian Tanaman Padi, Sukamandi
antifeedant; N. virescens; rice tungro virus disease
The effect of andrographolide and two synthetic insecticides of pymetrozine and imidacloprid, an antifeedant against N. virescens (Distant), to the rice virus transmission were tested using test tube inoculation method in the green house under natural photoperiod and average temperature of 28.5oC. The root of tungro diseased plant were soaked for 24 hours into tested materials before acquisition feeding to test virus acquisition inhibition, while root of rice seedlings were soaked into tested material for 24 hours before inoculation feeding to test virus inoculation inhibition. The results of studies showed that andrographolide, pymetrozine, and imidacloprid significantly reduced virus acquisition and virus inoculation by N. virescens. Pymetrozine and andrographolide treatments to the tungro diseased plants at concentration of 20 ppm significantly reduced proportion of viruliferous vector to become 17% in average. The increasing concentration into 40 ppm of both materials did not significantly reduce proportion of viruliferous vector. Imidacloprid at concentration of 0.01 and 0.02 ppm, completey inhibited feeding acquisition. Pymetrozine and andrographolide treatment at concentration of 20 ppm to the rice seedlings reduced significantly virus transmission by N. virescens to become 69% in average. The increasing concentration of pymetrozine up to 40 ppm did not reduce virus transmission rate. Imidacloprid at concentration of 0.01 ppm and 0.02 ppm reduced virus transmission to become 25% and 39%, respectively. It was concluded that imidacloprid was the most effective antifeedant reducing virus transmission by N. virescens among tested chemicals.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9832
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9834
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Pengaruh Daun Tanaman dalam Pemeraman terhadap Perkembangan Antraknos pada Pisang Ambon
Martoredjo, Toekidjo
Fakultas Pertanian
Universitas Gadjah Mada
Budiasih, Wahyu
Fakultas Pertanian
Universitas Gadjah Mada
Tjokrosoedarmo, Ambarwati Harsojo
Fakultas Pertanian
Universitas Gadjah Mada
anthracnose; fruit-ripening stage
Using plant leaves such as banana leaves, glyricidia leaves, and rice straw for ripening resulted in lower ripening stage score than control or using chemical such as ethrel, although statistically they are not siginificantly different. Glyricidia leaves and rice straw inhibit disease symptom representing anthracnose (Colletotrichum musae) development on Gros-Michel banana.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9834
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9835
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Aktivitas Biologis Rimpang Kencur terhadap Lalat Buah Melon II. Bioaktivitas Ekstrak Metanol Rimpang
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
kumchura extract; melon fly; bioactivity
Kumchura (Kaempferia galangal L.) rhizome has been known to posses bioactivity to melon fly in its crude form. Extract preparation from the same plant part was tested against melon fly Bactrocera cucurbitae Coquillet’s eggs and larvae to investigate its toxicity and activity. Toxicity test was done by diluting the rhizome’s methanolic extract and incorporating the solution to larval diet. Based on the toxicity test, sublethal concentrations were then tested to determine the extract activity to egg and larval survivals, larval stage duration, puparial weight and length, extracts’ repellency to larvae and extracts’ hormonal activity to larvae. The result showed that kumchura extract toxicity was only considered “slightly toxic”, but sublethal concentration as low as 0.3125% (to eggs) and 2.5% (to larvae) significantly affected the fly’s survival, while the same concentration to egg and 0.625% concentration to larvae significantly prolonged larval stage durations. Extracts’ repellency to larvae was siginificant in sublethal concentration as low as 0.3125%, but kumchura extract has no significant effect on puparial weight and length, and did not contain any hormonal activities toward melon fly.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9835
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9836
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Struktur Komunitas Artropoda pada Ekosistem Padi Tanpa Perlakuan Pestisida
Mahrub, Eddy
Fakultas Pertanian
Universitas Gadjah Mada
predator; parasite; neutral arthropod
Generally, rice ecosystem was les stable because the structure of natural community often change, and it may cause decrease in the natural biodiversity. The research has been done in the lowland ricefield during wet and dry season without pesticides application. Observation was started when the plant (IR64) was 7 days old after transplanting with interval of 8 days until one week before harvest, to collect the arthropods from each samples. The objectives were to study the structure of community of arthropods during wet and dry season and to study food web chain in natural ecosystem and its implementation in the Integrated Pest Management Program. The results showed that in rice ecosystem four arthropod groups or guilds, was found i.e. Pests, Predators, Parasites and Neutral Arthropods. The diversity and species abundance of arthropods were high but the highest abundance of arthropods was found on the member of certain order and family only. The population of pest was lower than predator. The relative abundance of pests were 5.75% in wet season and 8.57% in dry season, while predators were 27.96% in wet season and 33.88% in dry season. The population density of spider predators especially Lycosa sp. during wet and dry season were very high. It was supported by the abundant of neutral arthropods as alternate prey when the pest population was very low. This condition may support negative feed back interaction and increase the potential of natural control in the absence of pesticide application.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9836
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9837
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Kajian Aspek Biologi Stegobium paniceum (Coleoptera: Anobiidae)
Poerdriesti, V.
Fakultas Pertanian
Universitas Gadjah Mada
Wagiman, F. X.
Fakultas Pertanian
Universitas Gadjah Mada
Ananda, Koeswari
Fakultas Pertanian
Universitas Gadjah Mada
Stegobium paniceum; coriander; Anobiidae
The biological aspects of Stegobium paniceum (L.) (Coleoptera: Anobiidae) was studied by culturing the insect on coriander seeds at the Laboratory of Research Center for Biological Control (RCBC), Gadjah Mada University, under room temperature of 26.55± 0.72oC – 30.66± 0.40oC and 57.38 ± 5.53% relative humidity. The results showed that egg, larval, and pupal stages of S. paniceum were 9.15±1.37; 35.97±5.53 and 5.80±0.54 days, respectively. Females laid eggs firstly at 5 days old, hence, the life cycle was 55.92 days. The female produced eggs for 4.69±3.42 days, as many as 13.67±9.39 eggs. The eggs were laid in the coriander seeds; up to more than 50 eggs per seed, but only 68.54±29.27% out of them hatched and the one to three individuals of them developed into adult. Larvae and pupae lived in the coriander seeds or in coriander powder. The adults did not eat and could survive for 27.90±18.71 days, but could cause damage by making exit holes on the coriander seeds. The pest might cause coriander damage up to 80%.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9837
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9847
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Distribution Pattern of Aphis gossypii and its Coccinellid Predator Menochilus sexmaculatus in the Chilli Ecosystem
Wagiman, F. X.
Faculty of Agriculture
Universitas Gadjah Mada
Hussein, M. Y.
Faculty of Agriculture
Universiti Putra Malaysia
Muhamad, Rita
Faculty of Agriculture
Universiti Putra Malaysia
Sajap, A. S.
Faculty of Forestry
Universiti Putra Malaysia
Ismail, A.
MARDI, Perak
Aphis gossypii; Menochilus sexmaculatus; distribution
A study on the distribution pattern of Aphis gossypii Glover and its coccinellid predator, Menochilus sexmaculatus Fabricius, was conducted in a chilli ecosystem at the experimental field of Universiti Putra Malaysia. The study had revealed that distribution of M. sexmaculatus positively correlated with its prey distribution. The patterns of lateral and vertical distribution of A. gossypii and M. sexmaculatus were categorized as a clumped pattern.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9847
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9877
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Pengaruh Cara Aplikasi Minyak Suling Melaleuca bracteata dan Metil Eugenol terhadap Daya Pikat Lalat Buah Bactrocera dorsalis
Kardinan, Agus
Balai Penelitian Tanaman Rempah dan Obat
Iskandar, Momo
Balai Penelitian Tanaman Rempah dan Obat
Wikardi, Ellyda Abas
Balai Penelitian Tanaman Rempah dan Obat
Melaleuca bracteata; Bactrocera dorsalis
Research has been conducted at farmer’s fruit garden in Cilebut area, Bogor during 1997–1998. The objective is to know the effect of some application techniques of oil distilled from Melaleuca bracteata leaves on trapping fruit fly. Research consisted of three activities, those were the effect of some techniques of application on trapping fruit flies (I) weekly, (2) in two weeks and (3) the effects of some concentrations of methyl eugenol (ME) on trapping fruit fly. All treatments were hung at the fruit trees as high as 1.5 m. Observations were done in the number and gender of fruit flies trapped weekly and two-weekly. Result revealed that melaleuca distilled oil can be applied either by dropping into water or into cotton ball. Melaleuca leaves distilled oil should be applied once in two weeks, since its effectiveness lasted for two weeks only. The minimum concentration of methyl eugenol which could fruit flies effectively was 57%.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9877
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9881
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Sumbangan Pengenalan Waktu Tradisional “Pranata Mangsa” pada Pengelolaan Hama Terpadu
Wisnubroto, Sukardi
Fakultas Pertanian
Universitas Gadjah Mada
Pranata Mangsa; Integrated Pest Management
Cropping pattern and time of planting are two of several factors supporting Integrated Pest Management (IPM). Pranata Mangsa (PM) is a Javanese traditional time reckoning which has existed since some thousand years ago but formally as a calendar was socialized by the King of Surakarta in June 22, 1855. PM has twelve mangsas (similar to a month for other calendar system). Some farmers in Central Java, especially around Surakarta, still use this time reckoning system as a guidance for their activities including the agricultural ones. This system for example enables people to predict the beginning of wet and dry season and also to determine the best time for rice planting to escape from pests and diseases. Based on the information collected in Boyolali district, Central Java, it is known that there is a relationship between mangsa indicators with the attack intensity of rice stemborers.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9881
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9883
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Reaktivitas Antibodi Poliklonal SSV terhadap Antigen Homolog dan Heterolog
Sulandari, Sri
Fakultas Pertanian
Universitas Gadjah Mada
Sumardiyono, Y. B.
Fakultas Pertanian
Universitas Gadjah Mada
Roechan, M.
Pusat Penelitian Bioteknologi Tanaman Pangan
SSV; polyclonal antibodies; ELISA
Polyclonal antibodies for Soybean Stunt Virus (SSV) were produced in white rabbit through the following procedures: approximately 100 mg of purified virions emulsified in Complete Freund’s Adjuvant (CFA) were injected intramuscularly first. In the second and third injection 150 mg of purified virions in Incomplete Freund’s Adjuvant (IFA) per injection were injected intramuscularly. Finally, about 300 mg of purified virions were injected intravenously as a booster. The injection were done at 2 weeks interval. Antiserum was collected 5 days after the final injection. Antisera was purified by precipitation in saturated ammonium sulfate. Purified antibody was tested for the titer and reactivity of antibodies against the homologous and heterologous antigen. The studies were conducted with non-precoated I-ELISA test. This research was able to obtain about 25 ml of crude antisera for SSV, the concentration of purified polyclonal antibodies was about 9 mg/ml. the titer of polyclonal antibodies was 10.000 in I-ELISA. Without absorbtion with sap of healthy plant, the antibodies could not be use to identify the infected and healthy plant samples. In the following test, the absorbed antibody was used. Using antibodies to SSV at a dilution of 1:1000 and 1:10.000 against sap extracts sample of healthy and infected plant at a dilution of 1:10 by non-precoated I-ELISA test, indicated that the antibody could be used to identify the healthy and infected samples. By the same test, the antibody could be reacted to both homologous antigen (SSV) and heterologous antigen (CMV isolated from banana).
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9883
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9885
2017-08-24T05:14:56Z
jpti:ART
"980728 1998 eng "
2548-4788
1410-1637
dc
Pembiakan Massal Lyriomiza huidobrensis dengan Pakan Daun Kacang Babi (Vicia faba)
Suputa, Suputa
Fakultas Pertanian
Universitas Gadjah Mada
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
Lyriomiza huidobrensis; Vicia faba; mass-rearing
Mass rearing of Lyriomiza huidobrensis, a relatively new leaf miner known to attack potato, was done by using Vicia faba leaf as feed. The leaf miner was able to survive well on this feed, which in the field provide the larvae with alternative host. Result of the rearing was as follows: egg stadium, 4–5 days; larval stadium, 8–9 days; pupal stadium, 12–14 days; male adult longevity, 7–32 days; female adult longevity, 13–41 days. The number of eggs deposited by an average female varied between 114 to 592, with viability of 69.93 to 97.78%, and an average daily deposit of 8–25 eggs. The most important environmental factor in this mass rearing is temperature.
Universitas Gadjah Mada
1998-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9885
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 1 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9901
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Pengendalian Hayati Penyakit Akar Merah pada Akasia dengan Trichoderma
Widyastuti, S. M.
Pusat Studi Pengendalian Hayati
Universitas Gadjah Mada
Sumardi, Sumardi
Fakultas Kehutanan
Universitas Gadjah Mada
Sulthoni, A.
Pusat Studi Pengendalian Hayati
Universitas Gadjah Mada
Harjono, Harjono
Fakultas Kehutanan
Universitas Gadjah Mada
biological control; red root-rot disease; Trichoderma; acacia
The experiment was aimed to measure the distribution and intensity of root rot disease of Acacia spp. in the urban forest at the campus of Gadjah Mada University, to isolate and identify the causal organism and to select Trichoderma sp. as biological agent for controlling the disease. The pathogenicity of the causal organism was tested using Crotalaria juncea L. and trunk of A. mangium Willd. (10 cm diameter, 8 cm length) as indicator plant. The ability of Trichoderma sp. as antagonist was tested in vitro. It was concluded that the pathogen of the root rot disease was Ganoderma philippii. The pathogen attacked for species of Acacia spp. in the location namely A. auriculiformis, A. mangium, A. oraria, and A. crassicarpa. Of the total individual trees of those species in the campus, as much as 38.6%, 22.2%, and 66.7% were attacked by the root rot pathogen respectively. Of the 20 Trichoderma spp. isolate capable to inhibit the pathogen in vitro, three isolates were found as promising agents for biological control of the pathogen. The promising isolates were T. resei/T23, T. koningii/T1, and T. koningii/T16 with inhibition effectivity of 94.58%; 93.66%; and 91.76% respectively.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9901
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9902
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Kajian Kekhususan Inang Stegobium paniceum (Coleoptera: Anobiidae)
Wagiman, F. X.
Fakultas Pertanian
Universitas Gadjah Mada
Poerdriesti, V.
Fakultas Pertanian
Universitas Gadjah Mada
Stegobium paniceum; Anobiidae; coriander
The study of the host range of Stegobium paniceum (L.) (Coleoptera: Anobiidae) was conducted at the Laboratory of Research center for Biological Control (RCBC), Gadjah Mada University, under room temperature of 26.55±0.72oC–30.66±0.40oC and 57.38±5.53% relative humidity. The materials tested were seventh materials of stored products in their original and flour form. No Choice Method and Free Choice Method were to determine the applied host range and host specificity. New generation of S. paniceum produced from a material was used to indicate that the material was its host. The results showed that the main host of S. paniceum was coriander, and its alternative hosts were caraway seed, rice, dry ginger, candlenut, and nutmeg, while S. paniceum could not survive on pepper. The material form did not significantly affect the S. paniceum development.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9902
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9903
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Effect of Diapause on Development and Reproduction of White Rice Stem Borer Scirpophaga innotata Walker (Lepidoptera: Pyralidae)
Suparno, Teddy
Faculty of Agriculture
University of Bengkulu
insecta; white rice stem rice borer; Scirpophaga innotata; diapause
The objective of this study was to determine the effect of diapause on the development and reproduction of white rice stem borer (WRSB), Scirpophaga innotata Walker. During diapause, larvae of the WRSB, progressively decreased in weight at the rate 3.2 mg per week. Larvae lost 50 per cent of their initial body mass and had up to four stationary molts. Larvae became less active, lost pigmentation and leg rudimentary. The longer the larvae remained in diapause, the lighter in weight the emerging moths were, with fewer eggs and oocytes. After 5 months in diapause, the emerging moths weighted about half as much and had about half as many eggs and oocytes (230.0±35.8 egg cells in ovaries) as moths that emerged from nondiapausing larvae.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9903
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9904
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Sifat-Sifat Biokimiawi dan Fabrikasi Ganoderma Jamur Patogen Pohonan
Susanto, Agus
Pusat Penelitian Kelapa Sawit (PPKS) Medan
Ganoderma lucidum; medicine
Besides as a cause of tree disease, Ganoderma is also a medicine for human health. Ganoderma used as medicine is Ganoderma lucidum. This fungus contains polysaccharides, terpenoid, ganoderic acid, germanium, protein, adenosine, and fiber. All of these materials have the following properties: antitumor activities, increase of oxygen in brain, balance of bioelectric function, decrease of cholesterol and glucose concentration in blood, detoxification of poison, etc. because of that, Ganoderma is used to cure diabetes, stroke, hypertension, and it is used as a tonic to promote good health in old age.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9904
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9905
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Kajian Histopatologi Serangan Pratylenchus spp. pada Akar Pisang Kultivar Kepok
Indarti, Siwi
Fakultas Pertanian
Universitas Gadjah Mada
Rahayu TP, Bambang
Fakultas Pertanian
Universitas Gadjah Mada
Pratylenchus spp.; histopathology; root tissues
The root lesion nematode, Pratylenchus spp., were found infecting banana. The objective of this study was to investigate the damage and malformation on root tissues caused by these nematodes. The nematode inoculum was collected from roots of cultivar Kepok contained high population of Pratylenchus spp. Banana cv. Kepok were inoculated with 1000 nematodes as inoculum level per plant per pot for histopathological study. Pratylenchus spp. infected the root of Banana cv. Kepok and caused black necrotic lesions on the root surface. The exoderm, epiderm, and cortical tissue of the roots showed severe damage with necrotic cells or lesion. Especially on the cortex the burrowings were observed.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9905
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9906
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Percobaan Pendahuluan Pengaruh Minyak Mimba dan Ekstrak Biji Srikaya terhadap Mortalitas Helopeltis sp. (Heteroptera: Miridae)
Wiryadiputra, Soekadar
Pusat Penelitian Kopi dan Kakao Jember
Azadirachta indica A. Juss.; Annona squamosa L.; Helopeltis sp.
Preliminary trial of neem (Azadirachta indica A. Juss.) seed oil and aqueous seed extract of custard-apple (Annona squamosa L.) on the mortality of Helopeltis sp. has been conducted in laboratory condition. Neem oil obtained from directly pressed seed kernel and aqueous extract of custard-apple seed at concentration of 1.0% and 2.0% were significantly causing the mortality of the insect. The effectiveness of the substances in killing Helopeltis were not significantly different with propoxur and sipermethrin insecticides. Neem oil obtained from steamed seed before being pressed and aqueous leaf extracts were also causing high mortality but still lower than two substances previously applied. Number of eggs produced by Helopeltis treated with the neem oil and seed extract of custard-apple were also significantly lower than control.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9906
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9918
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Kloning Gen cry dari Bacillus turingiensis var. kurstaki
Ardiani, Nur Rahmi
Fakultas Pertanian
Universitas Brawijaya
Sismindari, Sismindari
Fakultas Farmasi
Universitas Gadjah Mada
Sudjadi, Sudjadi
Fakultas Farmasi
Universitas Gadjah Mada
cloning; cry gene; Bacillus thuringiensis
Bacillus thuringiensis is an entomopathogenic organism. The pathogenic effect is caused by crystalline protein, δ-endotoxin, which is encoded by the cry gene. The aim of this study was to clone the cry gene from B. thuringiensis var. kurstaki with a genomic library approach. HindIII digested B. thuringiensis total DNA was ligated to HindIII digested of pUC19, and then used to transform Escherichia coli DH5α. Selection of transformans carrying recombinant was done by α-complementation and a recombinant clone containing the cry gene was further screened by non-radioactive hybridization method using a probe synthesized from the conserved region of the published cry genes. The result suggested that two recombinant clones with the insert size of 3.4 kb and 2.0 kb, respectively, carrying the cry gene.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9918
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9919
2017-08-15T07:11:35Z
jpti:ART
"981221 1998 eng "
2548-4788
1410-1637
dc
Kajian Aspek Fisiologik Beauveria bassiana dan Virulensinya terhadap Helicoverpa armigera
Suharto, Suharto
Fakultas Pertanian
Universitas Jember
Trisusilowati, Endang Budi
Fakultas Pertanian
Universitas Jember
Purnomo, Hari
Fakultas Pertanian
Universitas Jember
Beauvera bassiana; virulence; Helicoverpa armigera
Study on physiological aspects of six isolates of Beauveria bassiana and their virulence to Helicoverpa armigera was conducted in laboratory. Six isolates were obtained from different host and geographical locations. Stocks cultures was freeze dried and when required they were reconstituted and placed onto fresh SDA and incubated for seven days. The result of research indicated that color of all colony are white. Colony growth rate was affected by kind of the media. The highest colony growth was found from rice bug Jember isolate (JeLa). The hyphal growth rate per days was significantly different between isolates. The highest hyphal growth rate was found from coffee berry borer Jember isolate (JeHh). The number of spore per ml in SDA was relatively higher than PDA. The number of spore was significantly different between isolates both in SDA and PDA. The highest number of spore was found from JeLa and JeHh in SDA and PDA, respectively. The germination of spore 24 hours after inoculation was found from JeLa and significantly different than other isolates, although the rate of germination per hour was not significantly different. The number of spore germination was increased by temperature change from 27oC to 45oC. However, the increase of temperature up to 50oC, the number of spore germination become lower than 27oC. Spore germination was decreased by irradiation of UV light. Among six isolates, the highest virulence to H. armigera was found from JeLa isolate.
Universitas Gadjah Mada
1998-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9919
Jurnal Perlindungan Tanaman Indonesia; Vol 4, No 2 (1998)
eng
Copyright (c) 1998 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9954
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Determination of the Factors in Diapause Initiation of White Rice Stem Borer
Suparno, Teddy
Faculty of Agriculture
Bengkulu University
white rice stem borer; abscisic acid; juvenile hormone
The objective of this research was to determine the important factors in white rice stem borer larvae, Scirpophaga innotata Walker, entering diapause. The results indicates that white rice stem borer (WRSB) larvae feed on rice plants IR64 grown on soils with continual watering which exposed at short day length (11.76 hours at June 21, 1994) will not be in diapause. However, terminated watering 75 days after transplanting or 15 days after flowering on the host growth media caused diapause. These terminated watering caused declining of soil moisture progressively which had direct effect on rice stem water content, and so affected significantly the increase of abscisic acid (ABA). A changes of primary metabolites (protein, lipid, and methionine) did not cause diapause. The secondary metabolite ABA had juvenile hormone activity in the insects larvae, progressively increased in its content in the rice stem caused the percentage of larval diapause of WRSB to increase. The role of ABA in diapause initiation of WRSB needs more study.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9954
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9955
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Peran Sklerotium dan Bentuk Lain Patogen Rhizoctonia solani sebagai Sumber Inokulum Awal Penyakit Hawar Pelepah Padi
Suparyono, Suparyono
Balai Penelitian Tanaman Padi Subang
Sudir, Sudir
Balai Penelitian Tanaman Padi Subang
R. solani; sclerotia; primary inoculum; rice sheath blight
Experiments were conducted in Sukamandi Experimental Station of the Research Institute for Rice (RIR), to evaluate the importance of sclerotia and other propagules as the primary inoculum of rice sheath blight. The trials were conducted during the growing season of 1996/1997. Two elite varieties, namely IR64 and Cisadane, were planted in plots of 2×2 m in size. Subplots were three different ways of crop establishment, i.e. transplanting with 20×20 cm distance, transplanting in-row with 10×40 cm, and direct seeding in row. Sub-sub plots were 6 different form of inoculum of R. solani, namely sclerotia, sclerotia+mycelium, fresh infected rice straw, decomposed infected rice straw, fresh infected weeds, and decomposed infected weeds. Checks were plots with no additional inoculum of R. solani. Disease incidence of sheath blight was observed once a week started at 2 week after planting. Data indicated that in both season, form of inoculum significantly affect the development of rice sheath blight. Highest disease incidence was observed in plots receiving fresh infected rice straw as the primary inoculum, indicating that this form of inoculum was the most efficient for rice sheath blight development. The other form appeared to be effective as primary source of inoculum, were decomposed infected rice straw and fresh infected weeds. In tropical rice ecosystem such as in Indonesia, sclerotia appeared to be not as an important primary inoculum for rice sheath blight. Such information would be of important as the basic of sheath blight management in Indonesia, since incorporation of fresh rice straw into the paddy field prior to planting is a common practice in Indonesian rice ecosystem.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9955
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9957
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Kajian Keragaman Genetik Isolat Ralstonia solanacearum BIOVAR 3 menggunakan Penanda REP-PCR
Suryadi, Yadi
Balai Penelitian Biogen-Bogor
Ralstonia solanacearum; rep-PCR; marker
Study of DNA fingerprinting of genomic DNA of Australian Ralstonia solanacearum biovar 3 was characterized by a DNA BOX primer that correspond with repetitive sequence using PCR amplification (rep-PCR). Based on rep-PCR DNA profiles different band mobility were observed among Australian biovar 3. Most of isolates have shown common DNA amplification product at 600 bp. Cluster analysis to the DNA profiles showed two different DNA banding patterns that correlated with geographical origins of the isolates. Subgroup A correspond well with isolates from South Queensland/New South Wales, whilst subgroup B correspond with isolates from North Queensland origin.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9957
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9958
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Peranan Faktor Lingkungan terhadap Penyakit Antraknos pada Bawang Merah
Hadisutrisno, Bambang
Fakultas Pertanian
Universitas Gadjah Mada
environmental factor; anthracnose; Colletotrichum gloeosporioides
Anthrachnose caused by Colletotrichum gloeosporioides (Penz.) Sacc. is one of the most important disease on shallot. Study on its ecological aspects is still limited. The results of the study revealed that anthracnose could be found at various ages of the plant. The climatic factor that had strong effect on the disease intensity was period of rain. The highest disease intensity (more than 54.89 percent) was obtained at plantation when it rained between 08.00–10.00 p.m., while the lowest occurred when it rained between 04.00–06.00 a.m.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9958
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9959
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Patogenisitas Rhizoctonia solani setelah Penyimpanan pada Substrat Berbeda
Pusposendjojo, Nursamsi
Fakultas Pertanian
Universitas Gadjah Mada
pathogenicity; Rhizoctonia solani; storage
Rhizoctonia solani Kühn is a polyphagus fungus causing damping off on nurseries. The fungus develops a resistant structure on plant debris in the form of sclerotium. The sclerotium is the major inoculum for next crops. Evidence indicated that viability and pathogenicity of the inoculum were affected by type of substrate in which the inoculum survived and by length of resting period. Rice straw appeared to be a better substrate for R. solani survival than that of soil. All seedlings planted on soil inoculated with inoculum from rice straw showed greater disease intensity, earlier symptom development, and more growth retardation than those of being inoculated with inoculum from soil.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9959
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9960
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Asosiasi Sitophilus oryzae (Col.: Curculionidae) dan Tribolium castaneum (Col.: Tenebrionidae) dalam Beras: Pertumbuhan Populasi dan Kerusakan Beras
Wagiman, F. X.
Fakultas Pertanian
Universitas Gadjah Mada
Kusumaningrum SSW, Praba
Fakultas Pertanian
Instiper
Tarmadja, Samsuri
Fakultas Pertanian
Instiper
Sitophilus oryzae; Tribolium castaneum; white rice
The association of Sitophilus oryzae (Lin.) (Col.: Curculionidae) and Tribolium castaneum (Herbst.) (Col.: Tenebrionidae) in the white rice, IR64 variety, was studied in the laboratory. Objective of the study was to determine the influence of the association upon their population growth and the white rice deterioration. Adults of the two insect-pest species as many as (a) 50 S. oryzae, (b) 50 S. oryzae and 50 T. castaneum, and (c) 50 T. castaneum were cultured on 0.5 kg of the white rice for two months period. The growth rate of the species was assumed to fit exponential pattern. The results showed that the growth rate of S. oryzae population when it was cultured together with T. castaneum was (r=0.0475) significantly lower than it was cultured alone (r=0.0586), on the other hand, the growth rate of T. castaneum (r=0.0366) when it was cultured together with S. oryzae was significantly higher than it was cultured alone (r=0.0288). The presence of T. castaneum might cause an interference competition for S. oryzae, while broken rice as a result of S. oryzae attack might be a good food source for T. castaneum. The combination of attack pf the two beetle species significantly reduced the white rice quantity and quality; it increased the broken rice, water content, and mustiness.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9960
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9963
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Kajian Keanekaragaman Artropoda pada Lahan Padi Sawah Tanpa Pestisida dan Manfaatnya dalam Pengendalian Hama Terpadu
Mahrub, Eddy
Fakultas Pertanian
Universitas Gadjah Mada
arthropods; diversity
The objectives of the research are to study the diversity and abundance of arthropods, and to study the foodweb chain composition in the ricefield ecosystem without application of chemical pesticide. This research has been done in the ricefield at Klaten district, with IR64 rice cultivar. The observation was started when the plant was 7 days old after transplanting, with an interval of 8 days until one week before harvesting, to collect the arthropods samples. Three plots and 50 hills per plot were sampled weekly. Arthropods from each hill were collected by using insect sucking apparatus. The data was analyzed following Cheng method to study the arthropod index diversity and its abundance. The results showed that in the rice ecosystem there were four groups o arthropod consisted of pest (21.19%); predator (26.09%); parasitoid (0.42%), and neutral insect (52.30%). Data of the pest population was very low in free from chemical pesticide application, plot while population of neutral insect was very high. The high population of neutral insect was very useful and functionary as alternate prey for predator and parasitoid when the pest population was very low. The diversity index (H’) of arthropods during the rice growing period in the first to the fourth week increased from 1.38 to 2.37, but during the fifth to the eleventh week the diversity was about constantly low. The diversity index decreased linearly with the rice growth stage, but as the plant got older the population of arthropods decreased because the habitat became unfavourable. It might cause the diversity index and the abundance decreased. Some of the arthropods moved to new area to find the most suitable habitat. There was a foodweb chain in the rice ecosystem consisted of arthropods complex including the natural enemies and which were neutral insects. It indicated a good balanced condition between pest and natural enemies more profitable when no chemical pesticide intervention was applied in the ecosystem.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9963
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9965
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Dinamika Populasi Nephotettix virescens pada Dua Pola Tanam Padi Sawah
Widiarta, I Nyoman
Balai Penelitian Tanaman Padi - Subang
Kusdiaman, Dede
Balai Penelitian Tanaman Padi - Subang
Hasanuddin, Andi
Balai Penelitian Tanaman Padi - Subang
green leafhopper; population dynamics; planting pattern
Planting pattern of irrigated rice in Indonesia can be categorized generally into consecutive rice-rice-rice and rice-rice-fallow/secondary crop patterns. A study was conducted in farmer’s fields in two planting patterns in 1997 and 1998 to elucidate population dynamics of green leafhopper, vector of tungro disease and factors affecting their dynamics. A susceptible rice variety to green leafhopper was planted three times in one season with monthly interval between planting time. The rice was planted following farmer usual practices except no insecticide was applied. The population of green leafhopper and their natural enemies was surveyed by sweeping net. The egg predator and parasitoid were observed by dissecting the rice stems and incubating the discovered eggs. Life table of the first generation was constructed. The key-factor analysis was conducted to identify the key-mortality factor by regression methods. Numerical response of natural enemies was also analyzed to know the relationship of key-mortality to predator. Population density of green leafhopper increased mainly during early stage of rice growth in the rice-rice-rice planting pattern, but in the rice-rice-fallow/secondary crop planting patterns showed almost no population increase at all. The nymph mortality including adult disappearance before maturation was the key mortality for the population in both planting patterns. However, there were different in population process between population in different planting patterns. In contrast to the rice-rice-secondary crop, there were no numerical response between nymphal mortality and predator density in the rice-rice-rice planting pattern. In the rice-rice-rice planting pattern adults dispersal played important role. Therefore to control tungro, reducing feeding and inoculation ability of green leafhopper was considered important. In the rice-rice-secondary crop, natural enemies conservation especially the predator was considered important.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9965
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9967
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Pengendalian Hayati Penyakit Layu Bakteri Tembakau: 2. Percobaan di Rumah Kaca
Arwiyanto, Triwidodo
Fakultas Pertanian
Universitas Gadjah Mada
Hartana, I.
Asosiasi Penelitian Perkebunan Indonesia
tobacco; bacterial wilt; biological control
Tobacco bacterial wilt caused by Ralstonia solanacearum has been controlled biologically in the greenhouse by the use of rhizosphere microorganisms, i.e. fluorescent pseudomonads and Bacillus spp. Root dipping for 30 minutes in the antagonist suspension (108 cfu/ml) suppressed bacterial wilt development. The best results were obtained with fluorescent pseudomonads Pf-20 and Bacillus sp. ba-118 isolates but the repression was annulled with the use of its combination. Disease severity were higher when the plants were treated with the combination between fluorescent pseudomonads. Treatment combinations between Pf-28, Pf-31, Pf-33, and Ba-118 could reduce the disease index.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9967
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/9968
2017-08-15T07:10:54Z
jpti:ART
"990728 1999 eng "
2548-4788
1410-1637
dc
Pertimbangan Fluktuasi Populasi dalam Perhitungan Efikasi Pestisida
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
Efficacy trials are carried out to secure registration and distribution permit for pesticides in a given country. In Indonesia, the protocol exclusively relies on the statistical difference between treatments and check plots, with little regard to before-treatment population. The efficacy criterion and its defined formulas with more attention to population changes are available, and should be applied to increase the efficacy’s accuracy.
Universitas Gadjah Mada
1999-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/9968
Jurnal Perlindungan Tanaman Indonesia; Vol 5, No 1 (1999)
eng
Copyright (c) 1999 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10014
2017-08-23T06:45:28Z
jpti:ART
"010728 2001 eng "
2548-4788
1410-1637
dc
The Current Status of Baculovirus and Their Implication for Insect Pest Control
Wijonarko, Arman
Fakultas Pertanian
Universitas Gadjah Mada
current status; baculovirus; insect control
Baculovirus have been promoted as the promising bioinsecticides for their pest control potential for more than half a century. But only a few have been successful as biological control agent, and almost none has been proven as commercial success, or widely used for large-scale insect pest control. The bioinsecticides currently represent only a small fraction of the world pesticide market. The successful of the Bt crop marked a special achievement in the bioinsecticide market growth. How about the baculoviruses? The main hurdle for baculovirus to be developed as bioinsecticide is its poor performance compare to synthetic chemical ones, include the speed of kill, and host range. It is important to understand the nature of baculovirus, and explore the possibilities to develop new way in applying the baculovirus as bioinsecticides.
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10014
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10015
2017-08-23T06:45:28Z
jpti:ART
"010728 2001 eng "
2548-4788
1410-1637
dc
Pencemaran Tanah dan Air Tanah oleh Pestisida dan Cara Menanggulanginya
Sutanto, Rachman
Jurusan Ilmu Tanah
Fakultas Pertanian
Universitas Gadjah Mada
pesticide; contamination; adsorption; bioremediation
The large increase in the use of modern agricultural chemicals, including pesticides and fertilizers has made agriculture an important non-point source of soil and groundwater contamination. Nitrogen, heavy metals, and organic associated with pesticides are presumably the most common contaminants introduced into the environment by modern agricultural practices. The present and abundance of the chemical contaminants in the soil and underlying groundwater largely depends on their chemical species as well as the various physical, biological and chemical properties of the soil. Understanding these processes and interactions between the contaminants and soil constituents would be useful in identifying effective techniques to restore the soil and groundwater contaminated by modern agricultural practices and others modern society activities. When the level of these contaminants in the soil are such that the quality of the plants, food crops and the groundwater are being compromised, then remedial actions are necessary. Such remediation could include in situ technologies, including bioremediation or phytoremediation combined as well as agronomic-types approaches. The best strategy in reducing soil contamination is to reduce pollution at the source and to use best management practices, such as adopting the most appropriate land use for a given type of soil contamination.
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10015
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10016
2017-08-23T06:45:28Z
jpti:ART
"010728 2001 eng "
2548-4788
1410-1637
dc
Infeksi Subletal Bacillus thuringiensis pada Helicoverpa armigera: Mungkinkah Menyebabkan Resurgensi?
Anggraeni, Tjandra
Jurusan Biologi
Fakultas Matematika dan Ilmu Pengetahuan Alam
Institut Teknologi Bandung
Putra, Ramadhani Eka
Institut Teknologi Bandung
Ahmad, Intan
Institut Teknologi Bandung
B. thuringiensis; H. armigera; sublethal; resurgence
Research on the effect of B. thuringiensis sublethal infection to the chance of H. armigera to resurgence has been conducted. Third instar insects were used and the concentration applied were 0 ppm, 150 ppm, 300 ppm, 450 ppm and 600 ppm. The result showed that along with the increase of B. thuringiensis infection, the number and the viability of the eggs production declined. In addition, the weight difference between the 3rd and the 4th instar became higher however between the 4th and the 5th became lower, moreover, the weight of female imago decreased, the life longevity of male and female imago were shorter and longer, respectively, along with the increase of B. thuringiensis infection. The possibility for resurgence will be discussed.
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10016
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10017
2017-08-23T06:45:28Z
jpti:ART
"010721 2001 eng "
2548-4788
1410-1637
dc
Herbisida Parakuat dalam Lahan Gambut: II. Pengaruhnya terhadap Pertumbuhan dan Hasil Kedelai
Martani, Erni
Fakultas Pertanian
Universitas Gadjah Mada
Sunarminto, Bambang Hendro
Fakultas Pertanian
Universitas Gadjah Mada
Supriyo, Agus
Balai Penelitian Rawa Banjarbaru
Margino, Sebastian
Fakultas Pertanian
Universitas Gadjah Mada
paraquat; peat; soybean
Utilization of peat soil for agriculture faces several constraints, such as low soil fertility and pH value. No-tillage agricultural system in peat land needs application of herbicides, for example herbicides with paraquat as active agent. This research was conducted to study the influence of paraquat on the growth and yield of soybean in peat. Peat soil from Central Kalimantan Province was obtained for this study. Due to the requirement of the plant, the soil was treated with lime and NPK-fertilizers. The results showed that paraquat significantly inhibited vegetative growth and decreased soybean production. These phenomena were found in early and advanced decomposed peat soil. Enhancement of vegetative growth and yield were detected when peat was treated with lime and or fertilizers. Liming treatment also supported the formation of root nodules. Inspite of increasing the growth of soybean, lime and fertilizers addition in peat was able to neutralize the negative effect of paraquat on the growth and yield of soybean. The best growth and yield of soybean were found in early decomposed peat soil, i.e. fibric peat soil.
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10017
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10018
2017-08-23T06:45:28Z
jpti:ART
"010721 2001 eng "
2548-4788
1410-1637
dc
Inventarisasi dan Identifikasi Jenis Tumbuhan Pengendali Hama di Kecamatan, Kabupaten Rembang, Provinsi Jawa Tengah
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
inventory; plants with pest control properties; Rembang regency
The economic crisis also hit hard the agricultural sector, as production inputs such as synthetic chemical pesticides and fertilizers became expensive and at times hard to get. But the ingenious and innovative thinking of the farmers were sometimes proven invaluable. They look back at the practices inherited from their ancestors: using plant materials as botanical pesticides as well as compost. While earlier the farmers were told that botanicals' use promotes safer environment and cleaner products, later they chose the alternative with more economical consideration. Unfortunately they have little, if available, records and notes regarding these promising plant materials. Not much have been done in the past to identify and record the kinds of plant and plant materials with pesticidal properties. This study was done based on this premise. Rembang regency in north-eastern Central Java is a region with diverse area, starting from low coastal land to woody tropical hills. The farmers living in the area has long known the use of botanicals, but not as intensive as during the present (the year 1998–2000). The systematic and thorough inventory and identification of such botanicals, however, has yet to be done. Therefore a survey was conducted in Kecamatan Pamotan, Rembang regency, by attending the village gathering, talking to elders and leaders, and through snowball effect method collecting information from farmers who use botanicals to protect their crops. Visit to the field and woods to identify the plants were also carried out. The result is records on the kinds, relative number, the use and other important facts which may serve as the basis for further improvement of these environmentally friendly practices.
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10018
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10019
2017-08-23T06:45:28Z
jpti:ART
"010721 2001 eng "
2548-4788
1410-1637
dc
Ketahanan Beberapa Varietas Unggul Kedelai terhadap Nematoda Puru Akar (Meloidogyne incognita)
Sukanaya, Wayan
Fakultas Pertanian
Universitas Udayana
soybean; resistance; root-knot nematode
The aims of this experiment are to find the varieties of soybean which are resistant against root-knot nematode (M. incognita) and to determine its attractancy toward the roots of resistant and susceptible soybean varieties. The experiment was divided into two parts, both parts using Completely Randomized Design. The first part was designed to determine the resistance and the second one to determine attractancy. The experiments were conducted in a green house and Plant Pest and Disease Laboratory, Faculty of Agriculture, Udayana University for 5 months. Of the 23 varieties of soybean tested against M. incognita showed that two varieties (Petek and Rinjani) were moderately resistant, 11 varieties were moderately susceptible and 10 varieties were found to be susceptible. However, none of variety was resistant. While on attractancy of root test of moderately resistant and susceptible variety it was found that M. incognita was more attracted to root of susceptible variety (Ringgit) than to moderately resistant variety (Petek).
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10019
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10020
2017-08-23T06:45:28Z
jpti:ART
"010721 2001 eng "
2548-4788
1410-1637
dc
Pengendalian Nematoda Puru Akar (Meloidogyne spp.) pada Buncis dengan Bakteri Pasteuria penetrans dan Solarisasi
Triman, B.
Fakultas Pertanian
Universitas Gadjah Mada
Mulyadi, Mulyadi
Fakultas Pertanian
Universitas Gadjah Mada
Pasteuria penetrans; soil solarization; root-knot nematode
The objectives of the research were to study the effect of P. penetrans and soil solarization on the population of root-knot nematodes (Meloidogyne spp.) and the effect of soil solarization on the infectivity of P. penetrans. The research was done in the field with high population of plant parasitic nematode especially root-knot nematodes. Soil solarization was done in dry season by covering the soil before french beans (buncis) were planted with transparent plastic and P. penetrans were inoculated before soil solarization. Factorial design in Completely Randomized Design was used in this experiment with the following factors: 1) soil solarization (within 1, 2, and 3 moths); 2) isolates of P. penetrans (i.e. isolate 2 and 3). The research results were: 1) Isolate 2 and 3 of P. penetrans were able to parasitize root-knot nematodes in soil solarized within 1, 2, and 3 months; 2) the length of soil solarization afected the infectivity of P. penetrans on Meloidogyne spp. The percentages of Meloidogyne spp. infected with isolate 2 of P. penetrans in soil solarization within 1, 2, and 3 months were 40.3%; 25.7%, and 10.1%, respectively, whereas in soil inoculated with isolate 3 of P. penetrans were: 37.3%, 10.2%, and 2.2%, respectively; 3) inoculation of P. penetrans reduced the root damage caused by root-knot nematodes (Meloidogyne spp.); and 4) treatment of P. penetrans combined with soil solarization reduced the root damage caused by root-knot nematodes (Meloidogyne spp.).
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10020
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10021
2017-08-23T06:45:28Z
jpti:ART
"010728 2001 eng "
2548-4788
1410-1637
dc
Optimasi Produksi Endokitinase dari Jamur Mikoparasit Trichoderma reesei
Harjono, Harjono
Fakultas Kehutanan
Universitas Gadjah Mada
Widyastuti, Siti Muslimah
Fakultas Kehutanan
Universitas Gadjah Mada
endochitinase; Trichoderma reesei; mycoparasite
The objective of the experiment was to select optimal medium composition to induce endochitinase production of Trichoderma reesei. Growing media were prepared by substitution of 0.5% colloidal chitin, 0.5% colloidal chitin and 1% Polyvinyl Pyrrolidon (PVP), 1% crab shell chitin (Sigma), 1% crab shell chitin and 1% PVP into Richard’sMedium (RM). Selected bioagent T. reesei isolate 13 was grown onto the media and the specific activity of endochitinase was measured. The results showed that T. reesei grown in all media performed enzyme expression. The highest specific activity of endochitinase was detected on T. reesei grown in RM medium substituted with colloidal chitin and PVP, followed by the same fungi in RM medium substituted with crab shell chitin plus PVP, colloidal chitin and crab shell chitin alone.
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10021
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10022
2017-08-23T06:45:28Z
jpti:ART
"010728 2001 eng "
2548-4788
1410-1637
dc
Populasi Bakteri Antagonistik terhadap Fusarium sp. dari Rizosfer Lada Sehat dan Sakit Kuning
Suwandi, Suwandi
Fakultas Pertanian
Universitas Sriwijaya
Mazid, Abdul
Fakultas Pertanian
Universitas Sriwijaya
Surahman, Surahman
Fakultas Pertanian
Universitas Sriwijaya
biocontrol; rhizobacteria; yellow disease
Populations of antagonistic bacteria colonizing rhizosphere of diseased and healthy black pepper plants were compared to explore the biocontrol function of these populations on yellow disease of black pepper. As many as 180 isolates (equivalent to population of 1.8 x 1010 cfu/g fresh weight of root) were randomly selected and tested for their antagonistic activities against Fusarium sp., a pathogen of yellow disease. To characterize the populations, the isolates were tested for their fluorescent and Gram reaction. There was an evidence of significant association between antagonistic activities and the disease incidence. We found the significant larger proportion of antagonistic bacteria from the rhizosphere of healthy black pepper, whereas no significant difference between proportion of antagonistic and non-antagonistic population from yellow disease-affected rhizosphere. Populations of antagonistic bacteria were dominated by the population of non-fluorescent Gram-negative. Most of the fluorescent populations were antagonistic to Fusarium sp.
Universitas Gadjah Mada
2001-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10022
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 1 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10068
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Current Topics in Molecular Plant Pathology
Natsuaki, Keiko T.
Department of International Agricultural Development
Tokyo University of Agriculture (TUA)
PCR; resistant genes; gene silencing; plant protection
Some current topics on molecular technology in plant pathology are reviewed. For detection and identification of plant pathogens, PCR with various modifications is applied. Study of nucleic acids sequence of pathogens gives keys for classification. For disease management, investigation of host reaction is also significant and mechanism of resistant genes is studied. In the study of plant reaction against pathogens, gene silencing is focused and compared with programmed cell death of animals. Since cost of molecular technology is still expensive, plant pathologists in Asia are expected to utilize their conventional techniques to realize ecologically sound plant protection for sustainable crop production.
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10068
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10069
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Insecticidal Activity of Extracts of Aglaia spp. (Meliaceae) against Cabbage Cluster Caterpillar Crocidolomia binotalis Zeller (Lepidoptera: Pyralidae)
Prijono, Djoko
Department of Plant Pests and Diseases
Faculty of Agriculture
Bogor Agricultural University
Simanjuntak, Partomuan
Research and Development Center for Biotechnology
LIPI
Nugroho, Bambang W.
Department of Plant Pests and Diseases
Faculty of Agriculture
Bogor Agricultural University
Sudarmo, Sudarmo
Faculty of Agriculture, Darussalam University, Ambon the Moluccas
Puspitasari, Shinta
Department of Plant Pests and Diseases
Faculty of Agriculture
Bogor Agricultural University
Aglaia; botanical insecticides; Crocidolomia binotalis
Insecticidal potential of eleven species of Aglaia (Meliaceae) was evaluated in the laboratory against the cabbage cluster caterpillar, Crocidolomia binotalis. The feeding treatment of second-instar larvae C. binotalis for 48 hours with ethanol twig extract of A. odorata at 0.5% caused 98.7% larval mortality; leaf and twig extracts of A. elaeagnoidea caused 17.3% and 6.7% mortality, respectively; twig extracts of A. argentea, A. formosana, and A. latifolia caused only 1.3% mortality each; whereas extracts of the other six Aglaia species were inactive (0% mortality). Further tests with A. odorata showed that twigs gave the most active extract compared to other plant parts (leaves, flowers, and roots), and air-drying of plant materials for 2 weeks markedly decreased the activity of the derived extracts. The active extracts also delayed the development of surviving larvae in similar degree to the level of their lethal effect. LC50 of ethyl acetate fraction of A. odorata twig extract and its main active compound, rocaglamide, against C. binotalis larvae were 310.2 and 31.4 ppm, respectively. This active compound was about 8.7 times less potent than azadirachtin (LC50 3.6 ppm).
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10069
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10070
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Usaha Pemanfaatan Tanaman Antagonis untuk Mengendalikan Meloidogyne incognita dan Meloidogyne graminicola
Triman, B.
Fakultas Pertanian
Universitas Gadjah Mada
Mulyadi, Mulyadi
Fakultas Pertanian
Universitas Gadjah Mada
control; antagonist plant; plant parasitic nematodes
The objective of the research was to find the antagonist plants for controlling the important plant parasitic nematodes i.e. Meloidogyne incognita on tomato and Meloidogyne graminicola on rice. The pots were arranged in Completely Randomized Design. Seven species of antagonist plants were used: Eclipta prostrata, Indigofera hirsuta, Digitaria sanguinalis, Eichhornia crassipes, Asparagus officinalis, Tagetes spp., and Crotalaria spp. Two experiments were done i.e. the antagonist plants were planted before the main crop and the antagonist plants were applied as an organic manure. The research results showed: 1) antagonist plants i.e.: Tagetes spp., I. hirsuta., Crotalaria spp., and A. officinalis inhibited the growth and development of M. incognita on tomato; 2) application of Crotalaria spp., E. prostrata., I. hirsuta, and E. crassipes as organic manure reduced the population development of M. incognita on tomato; 3) antagonist plants i.e.: E. crassipes, D. sanguinalis, Tagetes spp., Crotalaria spp. and A. officinalis inhibited the growth and development of M. graminicola on rice; and 4) the use of Crotalaria spp., Tagetes spp. D. sanguinalis, E. crassipes, A. officinalis and E. prostrata as organic manure reduced the population development of M. graminicola on rice.
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10070
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10071
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Dietary Compensatory Feeding in Manduca sexta (Lepidoptera: Sphingidae) Larvae
Ahmad, Intan
Department of Biology
Institut Teknologi Bandung
Manduca sexta; self-selection; compensatory feeding
The aim of the experiments reported in this article is to gain further insight into the nature and control of dietary compensatory feeding: i.e., to investigate whether one or another nutrient is more important in eliciting compensatory behavior. The response of 4th-instar Manduca sexta to dilution of either protein or carbohydrate nutrient in the diet was measured. In these experiments, ratio of protein and carbohydrate selected, food consumption and utilization parameters were measured. Fourth instars were given the opportunity to self-select between two defined diets, one which differed between treatments in protein content and a complementary diet, which contained the standard amount of carbohydrate and did not vary from treatment to treatment. In response to protein dilution, the larvae compensated by consuming more of both the protein-containing and carbohydrate containing diets. In most of the cases, this compensation was sufficient to maintain normal growth, although AD, ECI, and ECD declined with the reduction of protein in the protein-containing diet. When larvae self-selected from a standard protein diet that was paired with a carbohydrate diet with one of six concentrations of sucrose, they responded by eating more from the protein-containing diet as the sucrose content of the carbohydrate diet declined. The growth and efficiency of food use was little affected over the entire range of carbohydrate diets tested.Although apparently the regulation of carbohydrate intake is not as strong as the regulation of protein intake, it seems that in response to dilution, the larvae select at each concentration a protein:carbohydrate ratio that is favorable to them.
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10071
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10072
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Efektivitas Trichoderma spp. sebagai Pengendali Hayati terhadap Tiga Patogen Tular Tanah pada Beberapa Jenis Tanaman Kehutanan
Widyastuti, S. M.
Fakultas Kehutanan
Universitas Gadjah Mada
Sumardi, Sumardi
Fakultas Kehutanan
Universitas Gadjah Mada
Sumantoro, P.
Fakultas Kehutanan
Universitas Gadjah Mada
Trichodema spp.; soil-borne pathogens; fungicide activity
The experiment was aimed to compare Trichoderma spp. with fungicides in the control of soil-borne pathogens and to evaluate the inhibitory effect of the fungicides on the activity of Trichoderma spp. The first objective was achieved by applying antagonistic test of three isolates of Trichoderma spp. and inhibitory growth test of fungicides both against soil-borne pathogens. The second objective was attained by growing Trichoderma spp. on growth medium containing four level of fungicides. The results showed that three isolates of Trichoderma were comparable to fungicides in their ability to inhibit root rot pathogens. T. koningii at a concentration of 103 spores/ml performed the same level of growth inhibition with that of 0.2 ppm captafol against Rigidoporus lignosus. T. reesei at a concentration of 104 spores/ml gave same inhibition effect with that of 25 ppm benomyl against Ganoderma sp., and T. harzianum at a concentration of 105 spores/ml had the same inhibition effect against Sclerotium rolfsii with captafol at a concentration of 20 ppm. The results also showed that fungicides could affect the activities of Trichoderma on the medium. Benomyl promoted the growth of T. reesei and T. harzianum at a concentration of 0.2 ppm while at a concentration of 20 ppm both of them could not grow.
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10072
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10073
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Suppression of Sheath Blight of Rice with Antagonistic Bacteria
Wibowo, Arif
Faculty of Agriculture
Universitas Gadjah Mada
Rhizoctonia solani; sheath bight of rice; fluorescent pseudomonads
Eleven bacterial isolates were isolated from wet rice field in Wates, Kulon Progo. The result of antagonism test on nutrient agar (NA) showed that only two isolates (WKP-4 and WKP-6) were antagonistic to Rhizoctonia solani. Determination on these two isolates showed that they were belong to the group of fluorescent pseudomonads. In the glass house trial, only WKP-6 suppressed the relative lesion height of sheath blight of rice variety IR 50.
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10073
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10074
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Pemurnian dan Karakterisasi Enzim Endokitinase dari Agen Pengendali Hayati Trichoderma reesei
Harjono, Harjono
Fakultas Kehutanan
Universitas Gadjah Mada
Widyastuti, S. M.
Fakultas Kehutanan
Universitas Gadjah Mada
Margino, S.
Fakultas Pertanian
Universitas Gadjah Mada
endochitinase; Trichoderma reesei
This experiment was aimed to purify and characterize the endochitinase of Trichoderma reesei. Extracellular endochitinase was produced by T. reesei strain T13, a fungal biocontrol agent in colloidal chitin medium as sole carbon source. The enzyme was purified by ammonium sulfate precipitation, followed by gel filtration chromatography and chromatofocusing. The results showed that T. reesei produced endochitinase with molecular weight of 32 kDa and the activity was optimum at pH of 5,5 and temperature of 30 to 35oC.
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10074
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10075
2017-08-23T06:31:19Z
jpti:ART
"011221 2001 eng "
2548-4788
1410-1637
dc
Genetic Relationship Between Colony Colour and Polyoxin Resistance in Cochliobolus heterostrophus
Gafur, Abdul
College of Agriculture
University of Lampung
Bipolaris maydis; Cochliobolus heterostrophus; colony colour; linkage; polyoxin resistance
Three reddish, polyoxin-resistant mutant strains of Cochliobolus heterostrophus (Drechsler) Drechsler (MIC > 1600 μg/ml), i.e. NA1, PRE058, and TE2, were isolated after ethyl methanesulphonate (EMS) mutagenesis. The resistant mutants were crossed to each other and to the greeny, sensitive wild type strain to investigate genetic relationship between colony colour and polyoxin resistance traits in the fungus. Progeny analyses showed that colony colour and polyoxin resistance in the three resistant mutants were conferred by monogenic genes. No linkage was detected in the present study between the genes controlling colony colour and polyoxin resistance traits in the fungus.
Universitas Gadjah Mada
2001-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10075
Jurnal Perlindungan Tanaman Indonesia; Vol 7, No 2 (2001)
eng
Copyright (c) 2001 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10090
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Recovery of Microsclerotia of Verticilium dahliae from Soil as Subjected to Various Treatments
Soesanto, Loekas
Faculty of Agriculture
University of Jendral Soedirman
Thermorshuizen, A. J.
Department of Biological Farming System
University of Wageningen
survival; microsclerotia; Verticillium dahliae
The influence of various conditions on the survival of microsclerotia of Verticilium dahliae Kleb. was studied using three sources of field-collected potato stems densely covered with naturally-formed microsclerotia. Microsclerotia were found to survive for up 2 years in potato stems not incorporated in soil. The effects of temperature, pF, including weekly variations in temperature and or pF, and various modes of incorporating potato stem tissue on the survival of microsclerotia for up to 1 year in a sandy unsterilised soil was also studied for different microsclerotia sources. Inoculum source had no signicant effect. Remarkably few microslcerotia were recovered one day after the start of experiments varying between 5.5 and 31%. Recovery remained at this level or even decreased for another month and for several treatments, also after 3 and 6 months. Only after 3 to 12 months, recovery increased to values up to 5 times higher than that of one day after start of the experiment, but recoveries did not exceed the number of microsclerotia initially incorporated into the soil. Changes in recovery may be due to variation in the level of soil mycostasis which is affected by rate of nutrient exudation from microsclerotia.
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10090
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
https://jurnal.ugm.ac.id/jpti/article/download/10090/0
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10099
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Identifikasi Ras Fisiologis Fusarium oxysporum f.sp. cubense Berdasarkan Sifat Kompatibel Secara Vegetatif dan Pembentukan Bahan Volatil
Wibowo, Arif
Fakultas Pertanian
Universitas Gadjah Mada
Suryanti, Suryanti
Fakultas Pertanian
Universitas Gadjah Mada
Sumardiyono, Christanti
Fakultas Pertanian
Universitas Gadjah Mada
Fusarium wilt; F. oxysporum f.sp. cubense; vegetative compatibility groups (VCGs)
Race characterization of F. oxysporum Schlecht. f.sp. cubense (E.F. Smith) Snyd. & Hans. by determining disease reaction is difficult because the result may be biased due to the variability of growing condition. This study is aimed to identify physiological races of F. oxysporum f.sp. cubense in banana plantation in the province of Daerah Istimewa Yogyakarta by examining the relation of the fungal pathogen isolates. The identification of physiological races of F. oxysporum f.sp. cubense was based on vegetative compatibility groups (VCGs). The research was conducted in The Laboratory of Mycology Faculty of Agriculture GMU on March to November 2000. Observation of heterokarion formed by the mutant of F. oxysporum f.sp. cubense on selective medium was carried out in order to identify the compatibility of two different fungal isolates. Nitrate non utilizing (nit) mutants obtained without mutagen were used as the label. Nit mutant obtained from the same wild type isolates could form heterokarion on minimal agar medium containing NaNO3 as nitrogen source. Eleven isolates of F. oxysporum f.sp. cubense have been isolated from several cultivars of banana. Vegetative compatibility tests showed that of 11 eleven isolates, there were six different group VCGs where four of them formed volatile compound in rice medium whereas two of them did not.
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10099
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10102
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Pengaruh Bionematisida Berbahan Aktif Jamur Paecilomyces lilacinus Strain 251 terhadap Serangan Pratylenchus coffeae pada Kopi Robusta
Wiryadiputra, Soekadar
Pusat Penelitian Kopi dan Kakao Indonesia
bionematicide Paecilomyces lilacinus strain 251 (PL 251); Pratylenchus coffeae; Rotylenchulus reniformis
Experiment on the effect of P. lilacinus on the infestation of P. coffeae on robusta coffee was conducted in Sumber Asin Experimental Garden, Malang. The treatments were dosages of bionematicide i.e. : 0 (control), 0.25, 0.50, 1.00, 2.00, and 4.00 g; carbofuran (3 % active ingredient) 50 g/plant and organic soil treatment (OST) at 100 g/plant. Each treatment was replicated four times, and each replication consists of five coffee trees. The results in second year observation revealed that the population of P. coffeae in the roots on PL 251 treatments was not significantly different compared to the control, whereas in soil samples the population of both P. coffeae and Rotylenchulus reniformis inclined to be lower than the control, although they were not statistically significant. The lowest infestation was observed on PL 251 treatment at a dosage level of 4.00 g/tree. On nematode infestation, no significant difference on treatments of carbofuran and OST compared to the control. The yield of green coffee (market coffee) was the highest on the treatment of PL 251 at a dosage of 4.00 g/tree and significantly higher than the control and carbofuran treatments, with increasing levels of 225.3 and 198.9%, respectively.
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10102
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10103
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Aktivitas Penghambatan Trichoderma spp. Formulasi terhadap Jamur Patogen Tular Tanah secara In vitro
Widyastuti, S. M.
Fakultas Kehutanan
Universitas Gadjah Mada
Sumardi, Sumardi
Fakultas Kehutanan
Universitas Gadjah Mada
Irfa'i, Irfa'i
Fakultas Kehutanan
Universitas Gadjah Mada
Nurjanto, H. H.
Fakultas Kehutanan
Universitas Gadjah Mada
Trichoderma formulation; soil borne pathogens
The research was aimed to evaluate the growth of formulated conidia propagules of Trichoderma koningii, T. reesei and T. harzianum, which had been stored for 1 and 5 months and the inhibition activity against soil borne plant pathogenic fungi Rigidopous lignosus, Ganoderma sp., Fusarium sp., and Sclerotium rolfsii. The isolates were formulated in the forms of alginate bead, alginate-peat bead, and peat-lime powder. The results indicated that Trichoderma formulated stored at room temperature showed higher inhibition activity than that stored at 4oC. After 5 months in the storage, T. reesei in both bead and powder formula performed higher growth inhibition activity against soil borne pathogens than the other isolates tested. It was noted that all isolates performed temporary decreased growth inhibition activity against soil borne pathogens.
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10103
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10105
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Acceleration of Paraquat Biodegradation by Isolated Soil Bacteria
Martani, Erni
Faculty of Agriculture
Gadjah Mada University
Yanti, Nur Arfa
Faculty of Education
Haluoleo University
Margino, Sebastian
Faculty of Agriculture
Gadjah Mada University
Noegrohati, Sri
Faculty of Pharmacy
Gadjah Mada University
paraquat; degradation; bacterial isolates
Herbicides residues were reported to have impact on the ecosystem. It was thought that acceleration of paraquat degradation would minimize these impacts. Paraquat was persistent in peat soil due to low pH. This study was done to investigate the role of bacterial isolates on the acceleration of paraquat degradation, especially in peat soil. The bacteria were isolated from several kinds of Indonesian soils using enrichment culture technique in a modified N-free medium. The medium was added with paraquat at gradually increase-concentration from 10, 20, and 40 ppm (w/w). Examinations in paraquat degradation were done in two levels. The first was in a synthetic medium (N-free medium); the second was in soil extract medium. Two kinds of peat were used to make the soil extract media, i.e. fibric and saphric peat soils. Several bacterial isolates were able to degrade paraquat in N-free medium. However, the degradation mode was different with those in peat soil extract media. None of them degraded paraquat in fibric and saphric soil extract media. It was suggested that the environmental limiting factors were responsible to the failure of paraquat degradation. Two selected isolates were able to degrade paraquat when the pH value of the extract medium was enhanced to around 5.5. Bacterial isolate of SM1, which was isolated from acid sulfate soil of Central Kalimantan, was the best isolate which was able to degrade paraquat in synthetic medium and peat soil extract media, especially in fibric extract medium. It degraded around 30%of paraquat within 15 day. Experiments are being done to enhance paraquat degradation by inoculation of mixed cultures of selected bacterial isolates.
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10105
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10106
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Heritabilitas Sifat Ketahanan terhadap Cekaman Alelopati Gulma Teki pada Padi Gogo
Supriyanta, Supriyanta
Fakultas Pertanian
Universitas Gadjah Mada
upland rice; heritability; purple nut sedge allelopathy
Purple nut sedge (Cyperus rotundus L.) is the most difficult weed to control that produces suppressive allelochemicals to germination and early growth of upland rice. This research is aimed to identify responsive variables of upland rice varieties in competing allelopathy of purple nut sedge and estimate their heritability through mean-parents-offspring regression. The research conducted in two stages of experiment. First stage experiment is aimed to identify a critical level of purple nut sedge suppression and estimate of genetic variability among upland rice lines in responding purple nut sedge allelopathy, conducted in Completely Randomized Design with 25 lines and three replications. Experiment consisted of germination testing by tuber purple nut sedge crude extract with six concentration levels of suppression: 0, 5, 10, 15, 20 and 25%, and of competition treatment between upland rice and purple nut sedge with four levels of suppression based on sampled purple nut sedge tuber number: 0, 6, 12 and 24 tubers. Based on first stage experiment, critical level of suppression is identified at 5% of ethanol tuber extract and 6 tubers of purple nut sedge in competition treatment. Second stage experiment is screening of F1 plants and their respective parents at critical level of suppression. Plumulae length could be an effective selection criterion because of its high narrow-sense heritability (h2 = 0.73).
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10106
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10107
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Hubungan Antara Serangan Hama dan Penggunaan Pestisida: Pendekatan Analisis Ekonometrik pada Padi dan Kedelai
Mariyono, Joko
Fakultas Pertanian
Universitas Gununng Kidul
Yogyakarta
econometric; simultaneous equation; economic threshold
Pesticide is one of the pest control agents. Before concept of economic threshold was introduced, pesticide was used under scheduled method based on life cycle of insect pests. Therefore, pests damage was influenced by pesticide application, and resulting one-way relationship between pest attack and pesticide application. After the economic threshold concept was introduced as pest control strategy, the relationship becomes two-directions, namely pest attack is affected by pesticide application, and vice versa. Therefore, the simple relationship does not reflect the real condition. The unbiased relationship can be overcame by econometric approach called two stage least square, including new relevant independent variables. The objective of this study is determining the reversible relationship between pest attack and pesticide application. For this purpose, the time series data-containing pest attack level and pesticide application on rice and soybean during 1990–1998 were required. The result of analysis in rice indicated that the irreplaceable phenomenon that is increasing pest attack caused by rising pesticide application, but in soybean indicated common condition that is pest attack reduced when pesticide application increase. On the other hand, both pesticides application on rice and soybean were influenced by pests attack condition. Higher pest attack causes increasing pesticides application.
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10107
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10108
2017-08-23T04:46:57Z
jpti:ART
"020728 2002 eng "
2548-4788
1410-1637
dc
Jenis-Jenis Tikus (Rodentia: Muridae) dan Pakan Alaminya di Daerah Pertanian Sekitar Hutan di Kabupaten Banggai, Sulawesi Tengah
Suripto, Bambang Agus
Fakultas Biologi
Universitas Gadjah Mada
Seno, Aganto
Fakultas Biologi
Universitas Gadjah Mada
Sudarmaji, Sudarmaji
Balai Penelitian Tanaman Padi
TBS; omnivorous; predator
The species diversity of rats (Fam. Muridae) differs on each island in Indonesia. There are at least 16 genera of 41 species of rats in Sulawesi Island. Recently it has been reported that rats attack relatively new paddy field surrounding forest, but the identity of the species is still unknown. The objectives of this research are to assess the rat’s diversity and the guilds of rats living around the forest. The research was done in agricultural area surrounding forest in Siuna, foothill of Tompotika Mt, Banggai Regency, Central Sulawesi. Rats in the forest and coconut plantation were captured using Shermann traps, which were randomly situated. Rats in paddy field were captured by trap barrier system (TBS). Habitat condition and the presence of predators were recorded. All rat specimens were identified to their scientific names using Corbert & Hill (1992). Their stomach contents was put in 70% alcohol, taken 5 samples for each stomach, and analyzed under a microscope to determine their feed. The data were interpreted descriptively, which was emphasizing its potency as a pest. The result shows that there are 7 genera i.e. Bunomys, Maxomys, Taeromys, Paruromys, Tateomys, Mus, Rattus and 18 species of rats. Bunomys sp., B. penitus, B. prolatus, Maxomys sp., M. musschenbroekii, M. dollmani, Taeromys sp., T. callitrichus, T. celebensis, T. rhinogradoide, Paruromys ursinus, P. camurus, and P. dominator occupy the forest. B. heinrichi, B. prolatus, M. musschenbroekii, P. camurus, Mus musculus; and Rattus nitidus ocupy coconut plantation. R. argentiventer, R. exulans and R. nitidus occupies the paddy field. The stomach content examination shows that B. prolatus, M. musschenbroekii, R. exulans, R. nitidus, and T. rhinogradoide eat mostly animal materials, especially member of Phylum Arthropoda; R. argentiventer mostly eat plant material, especially member of Family Graminae (grass family). Unfortunately the stomach contents B. heinrichi, B. penitus, M. musculus, and T. callitrichus couldn’t identified since it was either empty and or severely damaged. The field data and literature study, suggest that R. argentiventer and R. exulans are pests or at least potential pests in the paddy field. B. heinrichi, B. penitus, B. prolatus, M. musschenbroekii, M. musculus, R. nitidus, and T. callitrichus are potential pests, since those species are basically omnivorous. However M. musculus prefers to eat grains. Meanwhile T. rhinogradoides is not potential to be a pest since it is carnivorous.
Universitas Gadjah Mada
2002-07-28 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10108
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 1 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/10229
2017-08-23T04:36:36Z
jpti:ART
"021221 2002 eng "
2548-4788
1410-1637
dc
Ecdysone Agonist: New Insecticides with Novel Mode of Action
Trisyono, Y. Andi
Fakultas Pertanian
Universitas Gadjah Mada
new insecticides; selectivity; ecdysone agonists
Development of insect resistance to insecticide has been the major driving force for the development of new insecticides. Awareness and demand from public for more environmentally friendly insecticides have contributed in shifting the trend from using broad spectrum to selective insecticides. As a result, scientists have looked for new target sites beyond the nervous system. Insect growth regulators (IGRs) are more selective insecticides than conventional insecticides, and ecdysone agonists are the newest IGRs being commercialized, e.g. tebufenozide, methoxyfenozide, and halofenozide. Ecdysone agonists bind to the ecdysteroid receptors, and they act similarly to the molting hormone 20-hydroxyecdysone. The binding provides larvae or nymphs with a signal to enter a premature and lethal molting cycle. In addition, the ecdysone agonists cause a reduction in the number of eggs laid by female insects. The ecdysone agonists are being developed as selective biorational insecticides. Tebufenozide and methoxyfenozide are used to control lepidopteran insect pests, whereas halofenozide is being used to control coleopteran insect pests. Their selectivity is due to differences in the binding affinity between these compounds to the receptors in insects from different orders. The selectivity of these compounds makes them candidates to be used in combinations with other control strategies to develop integrated pest management programs in agricultural ecosystems.
Universitas Gadjah Mada
2002-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/10229
Jurnal Perlindungan Tanaman Indonesia; Vol 8, No 2 (2002)
eng
Copyright (c) 2002 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/11724
2017-08-15T06:46:03Z
jpti:ART
"101221 2010 eng "
2548-4788
1410-1637
dc
Hubungan Antara Inokulum Awal Patogen dengan Perkembangan Penyakit Hawar Upih pada Padi Varietas Ciherang
Nuryanto, Bambang
Balai Besar Penelitian Tanaman Padi
Priyatmojo, Achmadi
Fakultas pertanian
Universitas Gadjah Mada
Hadisutrisno, Bambang
Fakultas pertanian
Universitas Gadjah Mada
Sunarminto, Bambang Hendro
Fakultas pertanian
Universitas Gadjah Mada
rice plant debris; rice sheath blight; sclerotia
Study on the role of initial inoculums on disease development of rice sheath blight caused by Rhizoctonia solani Kühn was conducted in glass house at the Faculty of Agriculture University of Gadjah Mada from December of 2009 to July of 2010. The aim of this study was to evaluate the importance of sclerotia and mycelium in plant debris as primary inoculum form of R. solani. Results indicated that both sclerotia and mycelium in plant debris significantly affect the development of rice sheath blight. Disease severity was closely related to the number of sclerotia on rice plant. The highest disease severity was observed in plant inoculated with 10 sclerotia per hills. Treatments of 6 sclerotia and 5 g plant debris per hills had comparable effect on disease severity and area under disease progress curve of rice sheath blight. The results suggested that sclerotia and mycelia in plant debris might play a major role as primary inocula of the disease in rice growing field.
Universitas Gadjah Mada
2010-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/11724
Jurnal Perlindungan Tanaman Indonesia; Vol 16, No 2 (2010)
eng
Copyright (c) 2010 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/11725
2017-08-15T06:46:03Z
jpti:ART
"101221 2010 eng "
2548-4788
1410-1637
dc
Update on the Host Range of Different Species of Fruit Flies in Indonesia
Suputa, Suputa
Fakultas Pertanian
Universitas Gadjah Mada
Trisyono, Y. Andi
Fakultas Pertanian
Universitas Gadjah Mada
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
Siwi, Sri Suharni
Fakultas Pertanian
Universitas Gadjah Mada
distribution; fruit fly; fruit survey; host; infestation
Recent reviews on Dorsalis and Dacine fruit flies had implication on host-insect inventory, including in Indonesia. Update is needed because of these changes and due to the rising of fruit and vegetable trade within islands, as well as with neighboring countries. Fruits were collected over a 3-year period from 24 provinces of Indonesia, covering areas from Aceh to Papua. This work was done specifically to obtain detailed information regarding the host range of the important species of Bactrocera spp., Atherigona orientalis, and Dacus longicornis, as well as Adrama determinata. Male lure Steiner traps to attract fruit flies were used in this study as an additional method to support species variation.Atotal of 1125 fruit samples were collected from many locations. Thirty five plant species from 18 families were recorded as fruit fly hosts and 27 plant species were new report as specific host for certain species of fruit fly. A larger array of host plants for fruit flies in Indonesia than reported before suggests the importance of effective quarantine measures to limit the spread of harmful fruit fly and to prevent the accidental introduction of invasive alien fruit fly species from other countries.
Universitas Gadjah Mada
2010-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/11725
Jurnal Perlindungan Tanaman Indonesia; Vol 16, No 2 (2010)
eng
Copyright (c) 2010 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/11727
2017-08-15T06:46:03Z
jpti:ART
"101221 2010 eng "
2548-4788
1410-1637
dc
Disease Incidence of Melon Leaf Curl in East Java and Special Province of Yogyakarta
Julijantono, Ignatius
Department of Quality Control PT. Agrimakmur Pertiwi
Somowiyarjo, Susamto
Faculty of Agriculture
University of Gadjah Mada
Trisyono, Y. Andi
Faculty of Agriculture
University of Gadjah Mada
Daryono, Budi Setiadi
Faculty of Biology
University of Gadjah Mada
Disease Incidence; Geminivirus; Melon leaf curl
Geminivirus infection has caused severe losses on various economically important crops. The disease incidence on melon has been observed since 2004, and widespread at melon production centers in East Java and Special Province of Yogyakarta. In East Java and Special Province of Yogyakarta, the Disease Incidence of leaf curl on melon reached 100% and 14.3 % respectively in 2008. Detection of the causal agent using primers of CPA5 and CPA2 resulted viral specific DNA fragment of 770 bp.
Universitas Gadjah Mada
2010-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/11727
Jurnal Perlindungan Tanaman Indonesia; Vol 16, No 2 (2010)
eng
Copyright (c) 2010 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/11728
2017-08-15T06:46:03Z
jpti:ART
"101221 2010 eng "
2548-4788
1410-1637
dc
Survei Penggerek Batang Jagung dan Kompleks Musuh Alaminya di Provinsi Gorontalo
Lihawa, Mohamad
Mahasiswa Pascasarjana Fakultas Pertanian
Universitas Gadjah Mada
Witjaksono, Witjaksono
Fakultas Pertanian
Universitas Gadjah Mada
Putra, Nugroho Susetya
Fakultas Pertanian
Universitas Gadjah Mada
corn; corn borrer; natural enemies
Corn borer is one of the important pests on corn plant in Gorontalo Province, especially in three districts which are the center of maize planting development. Corn borer and its natural enemy complex in Gorontalo Province has not been clearly studied. The purpose of this study is to determine the complexity of the natural enemies of maize stem borer by calculating the diversity and composition. The survey method was used, in which the older larvae, pupae, and corn borer natural enemies were collected from the field in the three districts (Gorontalo, Boalemo, and Pohuwato). Observation plots in each district area of 2,500 m2, were divided into 3 sub plots with the size of 3×3 m, each plot is consisted of 45 plants at the spacing of 75×25 cm. The data were analysed descriptively and organized into tables. Shannon Index was used to count the diversity and composition of the pests and their natural enemies. The results showed that the corn borer species was Ostrinia furnacalis, while the dominant natural enemy was the tachinid fly. The analysis of Shannon diversity index for natural enemies of three districts of Gorontalo, Boalemo, and Pohuwato were 0.63, 0.61, and 0.97 respectively.
Universitas Gadjah Mada
2010-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/11728
Jurnal Perlindungan Tanaman Indonesia; Vol 16, No 2 (2010)
eng
Copyright (c) 2010 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/11729
2017-08-15T06:46:03Z
jpti:ART
"101221 2010 eng "
2548-4788
1410-1637
dc
Penyakit Karat Putih Krisan di Sekitar Bandungan, Ambarawa
Semangun, Haryono
Fakultas Pertanian
Universitas Kristen Satya Wacana
Radityo, Wikan
Fakultas Pertanian
Universitas Kristen Satya Wacana
Nurcholis, Lilik
Program Studi Magister Biologi
Universitas Kristen Satya Wacana
Martosupono, Martanto
Fakultas Pertanian
Universitas Kristen Satya Wacana
Murdono, Djoko
Fakultas Pertanian
Universitas Kristen Satya Wacana
chrysanthemum; management; spore dispersal; sporulation; white rust
Chrysanthemum white rust (CWR) caused by Puccinia horiana creates severe losses on chrysanthemum (Chrysanthemum grandiflorum, Dendranthema grandiflora) in plastic houses in Bandungan (750–1050 masl.) and its surrounding. In lower elevations higher disease intensities were found around roof leakages and ventilations. In Sumowono (1000–1050 masl.) the disease was spread evenly in plastic houses. Teliospores of P. horiana develop in form of basidia (promycelia) at midnight which directly form basidiospores (sporidia). Spreading of basidiospores occur at 2 to 4 in the morning, especially at 3 a.m. Infection takes place through lower or upper surface of the leaves, as the two sides have stomata. Incubation time in this trial is 8–11 hours. Vegetative as well as generative phase of chrysanthemum have the same susceptibility. Many farmers applied inappropriate fungicides in controlling CWR. It is recommended to apply carbendazim as systemic fungicide alternated by protectant fungicides as mancozeb.
Universitas Gadjah Mada
2010-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/11729
Jurnal Perlindungan Tanaman Indonesia; Vol 16, No 2 (2010)
eng
Copyright (c) 2010 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/11730
2017-08-15T06:46:03Z
jpti:ART
"101221 2010 eng "
2548-4788
1410-1637
dc
Uret Perusak Akar pada Rumput Halaman Kampus
Harjaka, Tri
Fakultas Pertanian
Universitas Gadjah Mada
Martono, Edhi
Fakultas Pertanian
Universitas Gadjah Mada
Witjaksono, Witjaksono
Fakultas Pertanian
Universitas Gadjah Mada
campus lawn; white grub
The study aims to identify of white grub attacking lawn in the park of campus of University of Gadjah Mada (UGM), Yogyakarta. Observations were conducted since July 2008 until January 2010. The results showed that Lepidiota stigma is a pest cause damage to the grass in the UGM park. The presence of beetles occurred in October of the same beginning of the rainy season. Flight and lay eggs period lasted from October 2009 until January 2010. First instar larvae of L. stigma began there in November and the third instar in the month of January 2010. Factors supporting the attack of L. stigma in the college environment is the availability of grass throughout the year, as the lights and the presence of trees as shelter for adult beetles.
Universitas Gadjah Mada
2010-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/11730
Jurnal Perlindungan Tanaman Indonesia; Vol 16, No 2 (2010)
eng
Copyright (c) 2010 Jurnal Perlindungan Tanaman Indonesia
oai:jurnal.ugm.ac.id:article/11731
2017-08-15T06:46:03Z
jpti:ART
"101221 2010 eng "
2548-4788
1410-1637
dc
Pengaruh Tinopal terhadap Patogenisitas Nucleopolyhedrovirus pada Spodoptera litura
Ambarwati, Ma'unah
Program Pascasarjana Fakultas Pertanian
Universitas Gadjah Mada
Wijonarko, Arman
Fakultas Pertanian
Universitas Gadjah Mada
Hartono, Sedyo
Fakultas Pertanian
Universitas Gadjah Mada
nucleopolyhedrovirus; pathogenicity; S. litura; tinopal
Susceptibility of the armyworm, Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) to nucleopolyhedrovirus was evaluated using droplet feeding methods. S. litura was originally collected from the field in Bantul and has been reared continuously in the laboratory using artificial diet. The tested instars were exposed a series concentration of nucleopolyhedrovirus (2×103, 2×104, 2×105, 2×106, 2×107, 2×108, 2×109 PIB/ml) which were added with Tinopal 0,5% and 1%. The result indicated that the larval mortality of 3rd, 4th, and 5th instars Tinopal, significantly different with the addition of 1% Tinopal. This addition increased the effectiveness of NPV for 235, 25117, and 6.6 million fold. The observation of the larval midgut which was treated by Tinopal, showed that Tinopal physically disrupt the peritrophic membrane. Therefore, it can be suggested that the Tinopal facilitates the entry of NPV to the host insect.
Universitas Gadjah Mada
2010-12-21 00:00:00
article
application/pdf
https://jurnal.ugm.ac.id/jpti/article/view/11731
Jurnal Perlindungan Tanaman Indonesia; Vol 16, No 2 (2010)
eng
Copyright (c) 2010 Jurnal Perlindungan Tanaman Indonesia
b3c6c40ad7d9b6a58b5f07783ef47df8