Mashudi, Mudji Susanto, Liliana Baskorowati
DOI: https://doi.org/10.22146/jik.52141
Abstract
Swietenia macrophylla King. is an exotic species from Latin America which have been planted in Indonesia since 1870. This species is a good wood source for construction timber which is quite important in Indonesia. This study was conducted to determine the effect of seed source and family on S. macrophylla seedling growth which may be useful for supporting breeding program of this species. More
Febri Arif Cahyo Wibowo, Priyono Suryanto, Eny Faridah
DOI: https://doi.org/10.22146/jik.52441
Abstract
Durian (Durio zibethinus) is widely cultivated through agroforestry system in the Cangkringan and Kemalang sub district, in the southern slope of Merapi Mountain, Yogyakarta, Indonesia. Although the area to crop Durian has increased since 1990’s, the productions were not optimal, which probably is due to lack of silviculture treatments. More
Muhammad Imam Surya, Suluh Normasiwi
DOI: https://doi.org/10.22146/jik.46144
Abstract
Anaphalis longifolia is a group of edelweiss flowers which has a highly conservation value. However, there are only limited information on conservation activities of A. longifolia regarded to the seed storage and cultivation. The study was conducted in the laboratory of Cibodas Botanical Garden. In this study, two experiments were carried out. In the first experiment, A. longifolia seeds were treated by ethanol 96% with 11 different immersion time (0, 10, 20, 30, 40, 50, 60, 70, 80, 90 and 100 minutes). More
Multi Inang Fungi Ektomikoriza pada Dipterocarpaceae di Hutan Tropis
Maliyana Ulfa, Eny Faridah, Su See Lee, Sumardi, Christine le Roux4 le Roux, Antoine Galiana, Patahayah Mansor, Marc Ducousso
DOI: https://doi.org/10.22146/jik.46196
Abstract
Dipterocarpaceae is known as the dominant forest vegetation family in tropical forests that has mutual symbiosis with ectomycorrhizal fungi. It makes tropical forest resilience depend on the existence of ectomycorrhizal fungi. The role of ectomycorrhizal fungi to support the regeneration was found in multi-host form, indicated by sharing ectomycorrhizal fungal species between plants. More
Denny Irawati, Naresvara Nircela P Nircela P, Febe Margareta RM, J.P. Gentur Sutapa Gentur Sutapa
DOI: https://doi.org/10.22146/jik.46209
Abstract
In Indonesia the demand for edible mushroom, both for medicine and food, continues to increase. Production acceleration is needed to meet the market needs. This study aims to determine the effect of the incubation time and the number of rips on baglog to the productivity of 3 species of edible mushrooms that are widely cultivated in Indonesia. The baglog as sample in this study was obtained from Sedyo Lestari mushroom farmer in Bantul. More
Ronggo Sadono
DOI: https://doi.org/10.22146/jik.40143
Abstract
This study aims to determine the model of crown width development of the dominant teak tree planted using seeds from clonal seed orchards. The research was carried out in Ngawi Forest Management Unit on the good quality teak compartment having stands age from 6 to 15 years old. The good quality compartments were determined based on higher stand density, taller average tree height, larger average stem diameter, and good accessibility. More
Pertumbuhan Tanaman Semusim dan Manglid (Magnolia champaca) pada Pola Agroforestry
Aditya Hani, Levina Pieter Geraldine
DOI: https://doi.org/10.22146/jik.40146
Abstract
Critical dry land can be rehabilitated by applying agroforestry patterns. Dry land has problems with low fertility and susceptible to erosion. Agroforestry can increase the success of planting as well as support food self-sufficiency efforts. Selection of crops will increase the success of planting as well as to obtain intermediate results for farmers. This study aimed to determine the productivity of each plant species on the manglid agroforestry system. More
Uji Fitokimia dan Aktivitas Antibakteri Tumbuhan Pranajiwa (Euchresta horsfieldii (Lesch.) Benn.)
Amalia Indah Prihantini, Krisnawati Krisnawati, Anita Apriliani Dwi Rahayu, Yosephin Martha Maria Anita Nugraheni, Gipi Samawandana
DOI: https://doi.org/10.22146/jik.40157
Abstract
Euchresta horsfieldii is a medicinal plant known in West Nusa Tenggara and Bali as pranajiwa. This study investigated phytochemical analysis and antibacterial activity of roots, stems, leaves, and seeds of E. horsfieldii. The samples were analyzed for their antibacterial activity against Bacilus subtilis Inacc-B334, Staphylococccus aureus Inacc-B4, and Escherchia coli Inacc-B5. More
Denny Irawati, Soekmana Wedatama, Futoshi Ishiguri, Shinso Yokota
DOI: https://doi.org/10.22146/jik.34104
Abstract
Wood industry based on sengon (Falcataria moluccana) material has developed rapidly and cause the huge wastes. Lignocellulosic materials, such as sengon sawdust, offer a great potential as cheap and abundant feedstock for biofuels production. Ozone oxidation pretreatment was carried out on sengon wastes to improve fermentable sugar production by enzymatic saccharification. More
Daryono Prehaten, Sapto Indrioko, Suryo Hardiwinoto, Mohammad Na'iem, Haryono Supriyo
DOI: https://doi.org/10.22146/jik.34109
Abstract
Some environmental factors that greatly affect plant growth are soil’s physical and chemical properties. Some teak families planted at different locations alleged to have different growth responses. This study aimed to investigate the growth response of teak (height and diameter) from 30 families, and to determine the effect of soil chemical and physical characteristics on teak growth in two different locations. Teaks were measured for total height and diameter at breast height. More
Yeni Widyana Nurcahyani Cahyaningrum, Sapto Indrioko, Eny Faridah, Atus Syahbudin
DOI: https://doi.org/10.22146/jik.28282
Abstract
Sandalwood was origin to the south-eastern islands of Indonesia, but is recently occured as new land-races in Gunung Sewu, Java island. All of land-races consisted of three floral variants (MK, refers to “merah kecil”; MB, “merah besar”; and KB, “kuning besar”, respectively). This research aimed to determine flowering of these variants among three of land-races which were representing geographical zone in Gunung Sewu: Nglanggeran, Blebera, and Petir. More
Mashudi, Hamdan Adma Adinugraha, Dedi Setiadi, Mudji Susanto
DOI: https://doi.org/10.22146/jik.28283
Abstract
Broad leaf mahogany (Swietenia macrophylla King.) is one of popular species developed in the state forest plantations and smallholder forest. Although it is not native in Indonesia, but the species has high genetic diversity. This study was conducted to determine the morphological variation of fruits, seeds, and also seeds germination of broad leaf mahogany from several populations in Java and West Nusa Tenggara. The research was arranged in completely randomized design with native populations and parent trees as treatments. More
Pranatasari Dyah Susanti, Wawan Halwany
DOI: https://doi.org/10.22146/jik.28285
Abstract
The use of fast-growing tree species is necessary to meet the demand of timber. However, the information with regard the fertility of the soil for planting of these species is still limited. This study aimed to obtain data and information on the litter production and its rate of decomposition as well as soil macrofauna diversity on Industrial Plantation Forest of nyawai (Ficus variegate. Blume) with three different age classes. This study used a quantitative method. More
Dony Rachmanadi, Eny Faridah, Peter J Van Der Meer
DOI: https://doi.org/10.22146/jik.28286
Abstract
Degradation of forest ecosystem including peat swamp forest is generally represented by the degradation of its vegetation cover. Forest degradation tends to follow edge-to-interior distance gradient. This study aimed to determine the diversity and dominance of natural regeneration potential in peat swamp forest at Central Kalimantan. Seedling bank, seed rain, and seed soil bank as the indicators of natural regeneration potential were measured from series of plots located following the distance gradient. More
Ananto Triyogo, Priyono Suryanto, Siti Muslimah Widyastuti, Aldino Dwi Baresi, Isnaini Fauziah Zughro
DOI: https://doi.org/10.22146/jik.28287
Abstract
Modifications of land use have the economic and ecological implications. Protection upon biodiversity has been the center of concern on ecological side, while productivity of the land use has been considered a solution for food security. Insects are between these two major issues, namely conservation and food security.This study was aimed at tracing the structure of insect community based on its role on the trophic level on three different phases of teak-based agroforestry systems (early, middle, and advanced). More
Ridla Arifriana, Sapto Indrioko, Atus Syahbudin
DOI: https://doi.org/10.22146/jik.24905
Abstract
Sandalwood (Santalum album Linn.) is one of the flora that are commonly used as rehabilitation species, known as a plant that can grow in a lack of nutrient soil, and has a high economic value of santalol oil. This plant is indigenous in East Nusa Tenggara but it has a natural regenaration in some areas of Gunungkidul Yogyakarta, including in Petir Village, Rongkop, Gunungkidul. Morphological variation of Sandalwood in this area was relatively high. This research aimed to describe and classify sandalwood variations that exist in the research site based on the morphological characters. More
Pertumbuhan Tunas Beberapa Klon Jati Terseleksi setelah Pemangkasan di Persemaian
Hamdan Adma Adinugraha, Tri Maria Hasnah, Waris Waris
DOI: https://doi.org/10.22146/jik.24907
Abstract
Teak hedge garden was established to multiply several selected clones of teak from clonal test trial. It was usually established on a certain arable land. This study was conducted to determine the ability of various teak clones in the sprouting hedge garden which was established in the nursery. The study was arranged in randomized complete block design with 10 clones, 3 replications, and 10 individual ramet per replication. The tested clones were selected from a teak clonal test in Gunungkidul, Yogyakarta. More
Pengelompokan Keruing (Dipterocarpus spp.) di Indonesia Menurut Karakter Buah
Dwi Tyaningsih Adriyanti, Soekotjo Soekotjo, Mochammad Na'iem, Anto Rimbawanto
DOI: https://doi.org/10.22146/jik.12629
Abstract
The taxonomy status of Dipterocarpaceae family has been changed for several times. According to the review of classification compiled by Heim, Symington, Meijer, Maury and Ashton, the genus Dipterocarpus had quite close relations with Anisoptera, therefore, in some classifications they were described by writing in a group. However, Heim had a different point of view from four other experts as he divided the genus Dipterocarpus into 5 sections: sphaerales, tuberculati, angulati, alati and plicati, The classification done by Heim on Dipterocarpus were supported by Symington that the 5 sections could be detected from the fruit petals forming a tube. More
Sri Rahayu, Handojo Hadi Nurjanto, Rahman Gilang Pratama
DOI: https://doi.org/10.22146/jik.10193
Abstract
Mount Merapi National Park (TNGM) has been dominated by Acacia decurrens after the eruption in 2010. Almost 80% of A. decurrens trees showed stem rot diseases caused by Ceratocystis sp. which may associate with stem wound induced by ambrosia beetle and other physical injuries. The research objective were (1) to characterize the morphological feature, in vitro growth, and ability to adapt, colonize as well as to infect akasia, jabon, sengon, melina and jati sedlings, (2) to evaluate the status of stem rot disease in TNGM demonstration plot. More
Novita Anggraini, Eny Faridah, Sapto Indrioko
DOI: https://doi.org/10.22146/jik.10183
Abstract
Black locust (Robinia pseudoacacia) is a native species from North America and it has spread to Europe and Asia. Black locust is also one species used for land rehabilitation in semiarid and arid areas. However, adaptability of black locust on their distribution area is quite disturbing due to its invasive potential that tends to suppress the growth of native plants. More
Aris Sudomo, Aditya Hani
DOI: https://doi.org/10.22146/jik.10166
Abstract
Taro (Colocasia esculenta L. Shott ) is a functional food plant. Based on Permenhut P.35/2007 with regard to Non Wood Forest Product, taro is categorized as a starch plant. According to the knowledge of local people, the agroforestry of taro has been applied on dry land of private forest. The objective of this research was to evaluate the growth and productivity of taro under three tree species of the private forest using agroforestry system. Survey and field observation were conducted in this research. More
Kandungan Unsur Hara dalam Daun Jati yang Baru Jatuh pada Tapak yang Berbeda
Haryono Supriyo, Daryono Prehaten
DOI: https://doi.org/10.22146/jik.10169
Abstract
Litter on forest floor plays a very important role to maintain forest productivity and sustainability. The litter can control soil erosion, hydrology and nutrient cycles and has a function as carbon storage. The nutrients content in the leaf litter is affected by species, genetic, parent material, soil and climate. The objective of this research was to investigate the nutrient content of C, N, P, K, Ca, Mg, Na, Fe, Mn, and Cu in the litter from different sites. More
Adriana, Widaryanti W. Winarni, Daryono Prehaten, Ganis Nawangsih
DOI: https://doi.org/10.22146/jik.8572
Abstract
Recently, the utilization of bamboo is more extensive, but the attention towards its regeneration is not sufficient. The use of stem or branch cuttings are more practical and having more benefits and promising because the cutting materials are more available, easier to gain, cheaper, undamaging the source clump, faster in the taking time, and easier in the clump formation. The common rooting media used is top soil (the fertile part of upper layer soil). More
Haryono Supriyo, Daryono Prehaten
DOI: https://doi.org/10.22146/jik.7514
Abstract
Economically, the role of pine stands increased because of the value of the resin. The resin has been a flagship product of Perum PERHUTANI. In some areas, resin production varied among compartments. The variation is quite large even the trees were from the same seed origins. This study aimed to study the soil properties and climate, which results in variation of leaf nutrient content. Those were predicted as the cause of differences in the production of resin. More
Eny Faridah, Haryono Supriyo, M Gunawan Wibisono, Kristinawati Dwi Afiani, Dian Hartanti
DOI: https://doi.org/10.22146/jik.3305
Abstract
Sandalwood is one of important alternatives to use for rehabilitation programs of critical land areas in Indonesia. Therefore, due to its slow growth which held up forest rehabilitation program, attempts to accelerate its growth rate are crucially necessary. Considering that problem, the study is aimed to formulate an approach to accelerate cendana’s growth through the application of essential macro nutrients needed by cendana grown in three types of soil in the form of biofertilizers such as biofosfo and biosulfo. More
Sumarwoto Sumarwoto, Maryana Maryana
DOI: https://doi.org/10.22146/jik.1853
Abstract
Iles-iles or porang produces various sizes of bulbils, and farmers usually use only large ones. In this study, all sizes of bulbil: small, medium and large were grown on several planting media types. The purpose of this experiment is to obtain the best bulbil growth and the most suitable media for the initial growth of plant material in the form of bulbil. In addition, this study aims to test the interaction of both factors, bulbil size and type of planting media on bulbils produced. More
Dedi Setiadi
DOI: https://doi.org/10.22146/jik.577
Abstract
A progeny test of Araucaria cunninghamii seedling seed orchard was established in 2008 in Bondowoso, East Java. The progeny trial comprises of eighty open-pollinated families collected from six seed sources (Fak-fak, Sorong, Serui, Wamena, Manokwari and Queensland). The trial was designed as a Randomized Complete Block Design (RCBD) consisted of 80 seedlots, 4 tree-line plots, 4 replicates with spacing of 4 m x 2 m. More
Penentuan Tingkat Kompetisi Tajuk Tegakan Jati Hasil Uji Keturunan Umur 11 Tahun di KPH Ngawi
Ronggo Sadono, Meifrida Lasmaria Silalahi
DOI: https://doi.org/10.22146/jik.1564
Abstract
The increasing demand of teak wood should be followed by the increasing of teak forest productivity through intensive silviculture, especially growing space manipulation. The main objective of this research was to determine the growing space competition.The material was measurement data from eleven year progeny test located at the compartment 49a, RPH Sidowayah, BKPH Kedunggalar, KPH Ngawi. The growing space competition was calculated using Hegyi’s competition index. More
Keberhasilan Okulasi Jati (Tectona grandis L.f.) Hasil Eksplorasi di Gunung Kidul
Sapto Indrioko, Eny Faridah, Aan Yuli Widhianto
DOI: https://doi.org/10.22146/jik.1565
Abstract
Teak exploration as planting material source of superior genotype is necessary for hedge orchard establishment for forest communities in order to produce the planting material by themselves. The objective of this study is to identify the success and growth of teak grafting resulted from exploration in Gunung Kidul region.The exploration aimed to collect teak ortet (mother tree). The ortets would be used as materials for hedge orchard, as the cutting source for community forest plantation. More
Suryo Hardiwinoto, Nur Adin Eko Saputro, Handojo Hadi Nurjanto, Widiyatno Widiyatno
DOI: https://doi.org/10.22146/jik.1567
Abstract
Physical and chemical properties of the potting media, especially porosity and nutrient availability, are required to produce good quality seedlings of pine (Pinus merkusii Jungh et de Vries). Composted sawdust of sengon (Paraserianthes falcataria) wood is a potential material to be used for growing media of pine seedlings. However, since this material contains low nutrients, addition of a slow release fertilizer is required to meet the nutrient demand of seedling growth. More
Indi Hendraswari, Suree Bhumibhamon
DOI: https://doi.org/10.22146/jik.1046
Abstract
Growth characteristics of a wide range of provenance trial of Eucalyptus urophylla established at Lad Krating Plantation, Chachoengsao Province were assessed at 20 years of age. The trial was established to ascertain the extent of variation within the species, identify promising sources for the immediate seed supply and provide information on superior sources for selection. The trial consisted of 18 provenances representing six islands in Indonesia, viz. Flores, Lomblen, Pantar, Alor, Wetar, and Timor. More
Tunas Air: Variasi Kemunculan dan Pengaruhnya terhadap Pertumbuhan Tanaman Jati (Tectona grandis)
Eny Faridah, Sapto Indrioko, Tuharno Tuharno
DOI: https://doi.org/10.22146/jik.926
Abstract
Epicormic shoot is an adventitious shoot appearing from the dormant buds. The formation of the shoots is influenced by environmental conditions such as drought, excessive crown opening (by thinning) or by shoot death, but genetic factor also plays a role. Epicormic shoot is assumed to negatively affects plant growth. The study aims to identin) family variation in tendency to form epicormic shoots and to examine the effect of epicormic shoots on seedling growth of teak. More
Asri Insiana Putri, Toni Herawan
DOI: https://doi.org/10.22146/jik.821
Abstract
The hemiparasite Santalum album Linn. (cendana) grows very slow, in nature the rare and difficult seeds need stimulation to germinate. Gibberellins (including GA4) are growth regulators, usually used to increase growth as well as to break seed dormancy. The objectives of this research were to investigate the influence of gibberellins on germination percentage and height of cendana growth. More
Evaluasi Pertumbuhan Semai Beberapa Provenan Sungkai (Peronema Canescens Jack) di Kalimantan Selatan
Gusti Muhammad Hatta
DOI: https://doi.org/10.22146/jik.830
Abstract
Sungkai (Peronema canescens Jack) is among the species recommended for industrial forest plantation (IFP) by the Ministry of Forestry. Despite this fact, very little is known about the extent of genetic variation in wild populations and few attempts, if any, have been made at genetic improvement. Sungkai cuttings are collected wherever available, rather than companies seeking high-quality stockplants. More
Model Tajuk Jati (Tectona Grandis L.f) dari Berbagai Famili pada Uji Keturunan Umur 9 Tahun
Jany T. Raharjo, Ronggo Sadono
DOI: https://doi.org/10.22146/jik.834
Abstract
rown plays an important role in regulating the rate of tree growth through the photosynthesis process. Furthermore it can be used to measure stand density and to determine the availability of growing space. Because of the difficulty and time consuming in direct crown measurement, the development of crown model is needed. More
Gall Rust Disease Epidemic on sengon (Paraserianthes falcataria) in East java, Indonesia
Soekadar Wiryadiputra
DOI: https://doi.org/10.22146/jik.1542
Abstract
In the early of 2005 at one of the coffee and cocoa estates in the district of Banyuwangi, East Java, an epidemic outbreak of gall disease on albizia (Paraserianthes falcataria) with heavy infestation level occurred. Arthropod pest initially was suspected as the causing agent of the gall. More