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Departemen Silvikultur, Fakultas Kehutanan - Institut Pertanian Bogor Jl. Ulin Kampus IPB Darmaga, Bogor 16680 INDONESIA Telp./Fax.: +62-251-8626806 /+62-251-8626886
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Jurnal Silvikultur Tropika (JST)
Published by Institut Pertanian Bogor
ISSN : 20868227     EISSN : 28073282     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy Environmental Science Social Sciences
JURNAL SILVIKULTUR TROPIKA (JST) atau Journal of Tropical Silviculture adalah jurnal yang terbit tiga kali dalam setahun. JST menerbitkan artikel tentang sains dan teknologi silvikultur yang berhubungan dengan hutan tropika seperti botani, fisiologi, ekologi, tanah, genetika, proteksi, patologi, entomologi, kebakaran, daerah aliran sungai, biodiversitas, bioteknologi, agroforestri, reklamasi dan restorasi. Tulisan-tulisan ilmiah diterbitkan dalam bentuk artikel hasil-hasil penelitian (article), ulas balik (reviews), catatan penelitian (notes), hipotesa (hypothesis), maupun komunikasi (communication) di bidang silvikultur hutan tropika.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 419 Documents
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Identification the Potential Types of Fungi on Establishment Agarwood Stem of Aquilaria spp. Sri Wilarso Budi R.; Erdy Santoso; Akhmad Wahyudi
Jurnal Silvikultur Tropika Vol. 1 No. 1 (2010): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.1.1.%p

Abstract

One of tree genus that becomes the main source of agarwood producer is Aquilaria. The formation of agarwood was believed as response of agarwood trees to many factors, likes plant physiological and pathogenic fungi infection. A number of isolates that have the potential to induce agarwood has been isolated from wood samples from different areas such as Bangka, Bogor, Bohorok, Gorontalo, East Kalimantan, Lampung, Mentawai, Papua, and Sukabumi. This study aimed to obtain information on the types of fungi isolated from stem-forming agarwood Aquilaria spp that successful collection of Microbiology Laboratory of Forestry Research in Bogor. Identification was done by observing morphological features from cultured isolates on PDA and BLA. The results of identification of isolates collection include species of Fusarium solani (Mart.), Appell and Walenw, F. tricinctum (corda) Sacc, F sambucinum Fuckel, and F. Moniliformae.
Study of Vegetative Propagation on Intsia bijuga (Colebr.) O.K. with Grafting andi Sukendro; Irdika Mansur; Risna Trisnawati
Jurnal Silvikultur Tropika Vol. 1 No. 1 (2010): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.1.1.%p

Abstract

Vegetative propagation by grafting is an alternative method for merbau [Instia bijuga (Colebr.) O.K] propagation. One of the advantages of grafting that is  mostly used in seed production  that will be planted in seed orchard and it is useful for saving the merbau genetics. The research used Top Cleft Grafting method and completely randomized design with two factors. The first  factor is rootstock treatment which has diameter between 4-6 mm and 6.1-8 mm. The second factor is a scion phase type treatment which has dormant type and active type. Based on ANOVA, it is known that the rootstock and scion phase type treatments do not have significant influence on survival percentage and disease resistance percentage. But, interaction between them have a significant influence on a disease resistance percentage. According to the result of research, it is  known that the average of survival percentage of  Merbau grafting is 21.67%.
Utilization of Rhizoplane Bacteria and Arbuscular Fungi Mycorrhizal (AFM) to Improve Growth of Jelutong Seedling (Dyera polyphylla Miq. Steenis. Irnayuli R. Sitepu; Irdika Mansur; Rifa’ Atunnisa
Jurnal Silvikultur Tropika Vol. 1 No. 1 (2010): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.1.1.%p

Abstract

Nontimber forest products (NTFPs) represent sources of income from tropical forest, but some NTFP species have decreased in population and become endangered due to overexploitation. There is increasing concern that the planting stock of Dyera polyphylla is not sufficient to sustain the yield of NFTPs. The beneficial root colonizing rhizosphere bacteria, the so-called plant growth-promoting rhizobacteria have been known to carry out many important ecosystem processes, such as those involved in the nutrient cycling and/or seedling establishment. The roots of most plant species associate with certain soil fungi and establish what are known as mycorrhiza. The objective of this study was to determine the effect of two arbuscular miycorrhizal (AMF) fungi, Glomus sp., Gigaspora sp. and thirteen strains of hizoplane bacteria (CK32, FL.13.2.1, JW1, JW6, JW9, JW13, JW14, CK26, CK4, JW3a, SB, NT, CR.R1), on the early growth of D. polyphylla, under greenhouse condition. Percentage of AMF colonization, plant growth, and nitrogen (N) and phosphorus (P) concentration were measured after 150 days of planting. The results showed that the percentage of AM colonization of D. polyphylla was 100%. Colonization by Glomus sp. significanly increased plant height by 18,95% and diameter by 16,16% compared to those non AMF. Combination of bacterial and AMF inoculant between JW13 and Glomus sp. increased shoot weight by as much as 36,28% from control and increased N concentration by 69,59% compared to those of non inoculate a seedlings. Combination of JW1 and Gigaspora sp. increased P concentration by as much as 42,05% compared to those of non inoculate seedlings. Despite the difficulty of selecting a multifunctional microbial consortia, appropriate microbial combinations can be recommended for a biotechnological input related to improvement of plant performance. 
Utilization of Rice-Hush Charcoal to Improve Growth of Jabon Seedlings (Anthocephalus cadamba (Roxb.) Miq) on Subsoil Media. Supriyanto Supriyanto; Fidryaningsih Fiona
Jurnal Silvikultur Tropika Vol. 1 No. 1 (2010): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.1.1.%p

Abstract

Bio-charcoal has been used widely in agriculture and forestry, especially in seedling production. It is not only as a source of fuel energy but the charcoal can also be used as a soil amandment for improving soil properties as an effort to improve crop growth and land rehabilitation. The purpose of this study was to determine the effect of adding rice-husk charcoal amendment to Jabon seedlins  grown in the subsoil media. Treatment was provided in the form of five doses of rice-husk charcoa lthose were 0% (control), 2.5%, 5%, 7.5% and 10% (v / v) with 10 replicates, each treatment consisted of  3 units. The number of media (subsoil)treatment was 2 / 3 the volume polybag size 10 x 15 cm. Observations showed that the amandment of rice-husk charcoal to the subsoil improved significantly on height and the total dry weight (biomass) of Jabon seedlings compared to controls. The amandment of rice-husk charcoal 5% (v / v) in the subsoil produced the best growth of Jabon seedlings or increasd  from  27.42% to 65.64% for total dry weight (biomass) compared to control.
Growth of Gmelina arborea Roxb. in Several Agroforestry Patterns Nurheni Wijayanto; Mokhamad Rifa’i
Jurnal Silvikultur Tropika Vol. 1 No. 1 (2010): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.1.1.%p

Abstract

Combination of cultivated plants conducted in RHLP program in Cikanyere village enable for differences response occurrence to main plant growth. The purpose of this research is to examine the main plant growth of Gmelina arborea Roxb. in several agroforestry patterns in Cikanyere Village, Sukaresmi District, Cianjur Regency. Main plant growth parameters (height, diameter and crown projection) measured in the census in each agroforestry patterns. Physical and chemical soil analyzed from each agroforetsri patterns in the laboratory. Traced the history of land management by conducting interviews with managers of farmers each selected agroforestry patterns. The data obtained were analyzed descriptively. Agroforestry pattern wasa developed by the farmers is AF 1 (Gmelina, corn, cassava, banana), AF 2 (Gmelina, corn, coffee, bananas), AF 3 (Gmelina, mahogany, cassava, petai), AF 4 (Gmelina, mahogany, corn, chili peppers) and AF 5 (Gmelina, mahogany, dry land rice, cassava, corn). The pattern of AF 3 has the lowest of growth, while the pattern of AF 1  and AF 4 showed the most growth compared with other patterns. The pattern of AF 3 have small LCR and LAI, while the pattern of AF 1 and AF 4 have the largest LCR and LAI so that photosynthesis function optimal and main plant growth are better than the other patterns. The phosphorus (P) on the pattern of AF 3 suspected to be a limiting factor for plant growth gmelina. P and K needed cassava plants in sufficient numbers to form the root and tuber enlargement so that suspected as the cause of the low content of P elements in AF 3 pattern. Basic plant growth G.arborea Roxb. influenced by the interaction between components and land management systems that do farmers in each agroforestry patterns.
Potentials of Jarak Pagar (Jatropha curcas Linn) as Green Belt based on the Rate of its Litter Decomposition Lailan Syaufina; Nurheni Wijayanto; Istomo Istomo; Khairia Nafia
Jurnal Silvikultur Tropika Vol. 2 No. 1 (2011): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.2.1.%p

Abstract

Previous study found thar Jarak pagar  has potency for fuel break in forest fire control. There are some requirements for vegetation to be fuel break. One of the requirement as fuel break is decomposition race in which the higher decomposition rate may be suitable for fuel break in order to prevent surface fuel accumulation. A study was conducted to analyze decomposition rate of Jarak pagar in the field. Some sample plots were established in forest plantation area of Gunung Hambalang Bogor managed by Perhutani under agroforestry system. The study revealed that Jarak Pagar in the study area has higher decomposition rate when compared to other tree sppecies. Therefore, Jarak Pagar meet the requirement for fuel break from decomposition rate point of view.
Utilization of Coconut Water for Increasing the Growth of Shoot Cutting of Meranti Tembaga (Shorea leprosula Miq.) Edje Djamhuri
Jurnal Silvikultur Tropika Vol. 2 No. 1 (2011): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.2.1.%p

Abstract

Coconut water contains gibberelin, cytokinin and auxin which have potential to stimulate the growth of cuttings.  The objective of this research was learning the effect of application of coconut water, IBA and NAA on the growth of shoot cuttings of meranti tembaga (Shorea leprosula).  This research was conducted in nursery of Division of  Silviculture, Department of Silviculture, Faculty of Forestry, Bogor Agriculture University, for 4 month.  The research used Completely Randomized Design,  comprising 4 treatment, namely control, application of coconut water, IBA of 100 ppm, and NAA of 100 ppm, with three replication, and each replication consisted of 20 shoot cuttings. Growth parameters of shoot cuttings comprised percentage of survival, percentage of shoot growth, percentage of rooting, and dry weight of roots.  Research result showed that application of coconut water, equivalent with IBA of 100 ppm and NAA of 100 ppm could increase the growth of meranti tembaga (Shorea leprosula) shoot cutting.  Coconut water could be used to stimulate the growth of meranti tembaga shoot cutting as a substitute for IBA of 100 ppm or NAA of 100 ppm.
The Growth of Red Meranti (Shorea leprosula Miq) with Selective Cutting and Line Planting of Silvicultural System at the Forest Concessionaire PT. Sari Bumi Kusuma, Central Kalimantan Prijanto Pamoengkas; Juniar Prayogi
Jurnal Silvikultur Tropika Vol. 2 No. 1 (2011): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.2.1.%p

Abstract

Contribution of forest for development of this nation can not be regarded as small, so that the forests must be managed and used optimally and well  preserved. As an effort to preserve and enhance timber production, PT. Sari Bumi Kusuma (PT. SBK) as one of the holders of Forest Concessionaire (IUPHHK-HA), have been applied Selective Cutting and Line Planting (TPTJ) silvicultural system in it’s management of natural forest production since 1999. Red Meranti (Shorea leprosula) is one of the flagship sppecies which are selected in TPTJ because it better growth than other Meranti sppecies.However, the growth of S. leprosula in line planting  excessively unknown yet. This research aimed to know the diameter growth of S. leprosula 5 - 9 in TPTJ silvicultural system. Research conducted in Mei 2009  in PT. SBK’s areas. Data of diameter growth collected through observation of the 100 m x 100 m sampling plots (1 ha).Plot samples were taken in each age planting which are purposively selected based on the age of 5 to 9 years old of planting, where in each of the plot samples there are five lines of planting. Analysis of research data including diameter stand structure, data normality test, Mean Annual Increment (MAI), and curve of diameter growth. Diameter growth of of S. leprosula which planted in line generally sppreading normally, where the most frequency of individual tree is in the diameter class that represents the mean (average) of the stand diameter, and show sigmoid shape curve of the diameter growth. The average increment (MAI) of S. leprosula were highest at the age of seven year plantation i.e to 2.31 cm / year and the lowest at the age of five year plantation i.e 1.45 cm / year. The largest diameter found at the age of nine years after planting i.e 28.5 cm (average 19.7 cm).
Effect of NPK Fertilizers on Plant Growth Gmelina (Gmelina arborea Roxb.) In Media Land Former Gold Mine (Tailings) Basuki Wasis; Nuri Fathia
Jurnal Silvikultur Tropika Vol. 2 No. 1 (2011): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.2.1.%p

Abstract

Mining activities can have negative impact on the environment if the waste they produce is not processed properly. Negative impacts include disruption of natural ecosystems such as changes in soil structure resulting morphology and physical conditions, chemical and biological soil becomes worse. Tailings are mineral composite weight from mining activities, has a sandy texture. Composites is a waste of mining and no economic value. Given these tailings will disrupt the ecosystem of the environment so that the quality and productivity of the environment will decrease. Revegetation activities (afforestation) is one of the vegetative techniques that can be applied in an effort to rehabilitate the damaged land. Crop planting Gmelina arborea Roxb. tailings in the media with the addition of NPK fertilizer is expected to improve the physical properties, chemical and biological soil tailings as a medium of plant growth in land revegetation efforts.
Development of Boktor (Xystrocera festiva Pascoe) Larvae in Artifical Diet by Using Sengon (Paraserianthes falcataria) Powder Noor Farikhah Haneda; Sri Rahayu Nuban
Jurnal Silvikultur Tropika Vol. 2 No. 1 (2011): Jurnal Silvikultur Tropika
Publisher : Departemen Silvikultur, Fakultas Kehutanan dan Lingkungan, Institut Pertanian Bogor (IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/j-siltrop.2.1.%p

Abstract

At present, superiority possessed by sengon tree sppecies influences the development of monoculture plantation forest. However, constraint faced by monoculture of sengon tree is the high susceptibility of the sengon tree to attack by pest boktor (X. festiva Pascoe).  This phenomenon requires effective and efficient pest control.  Inefficient control of this pest was due among other things to lack of knowledge concerning insect boktor, particularly in the asppect of physiology and biology.  In relation with this, research was conducted on pest boctor which were reproduced and observed in laboratory by using artificial food (artificial diet).  The artificial food was made from sengon powder and other chemicals.  If artificial food which contains powder of sengon wood and bark from a particular provenance is not preferred by boktor larvae, there is possibility that sengon tree of that provenance is resistant to attack by pest boktor. The objective of this research was for explaining the effect of sengon provenance and environmental condition on the development of boktor larvae. The benefit of this research was the gain of information concerning development pattern of boktor larvae and the technique for controlling this pest. The observed parameters were larvae weight, larvae length, diameter of larvae head and food weight which was consumed by boktor larvae. Measurement and change of food was conducted once in two weeks. Research results showed that factors of provenance, environmental condition and interaction between provenances did not give significant effect on all observation parameters, namely larvae weight, larva length, diameter of larva head, and weight of consumed larvae food in the form of bark powder or stem powder during five times observation for statistical test. The suitable composition of artificial diet was by using addition of pure cellulose as the main ingredients. Eating behavior of boktor larvae in artificial diet in the laboratory showed similar pattern with eating behavior of boktor larva in tree stem in the field.

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