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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 500 Documents
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Adaptability Trial of Paspalum conjugatum Berg, Setaria splendida Stapf and Vetiveria zizanoides (L.) Nash on Aluminum Toxicity UJI ADAPTABILITAS Paspalum conjugatum Berg, Setaria splendida Stapf, DAN Vetiveria zizanoides (L.) Nash PADA TOKSISITAS .... Jenny Rumondang; Yadi Setiadi; Iwan Hilwan
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): 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.7.3.211-216

Abstract

Quartz sand mining operated by PT Holcim creates the soil minerals such as aluminum (Al). Setiadi (2012) explained that Al > 3 me/100 g soil is a toxic. Problem safter mining operational PT Holcim Tbk are: 1) Al toxicity. 2) soil compaction; 3) Ca < Mg which lead to stagnant growth. The presence of Al affected root growth, signed by swelling and browning root. Reducing Al concentration needs expensive cost. Thus, other biological alternatives which more effective and cost less are needed.This research objective was to observe plant growth at media which consist of Al toxicity. Using of Paspalum conjugatum, Setaria splendida, and Vetiveria zizanoides where use as plant indicator. The treatment were concentration of micro lime and humic substances complex. The experiment conducted at factorial design.. The resulted shows performances of three grass species planted in tailing soil gave varied result. P. conjugatum was more sensitive to Al than two others, where as S. splendida and V. zizanoides were more adaptive to Al. S. splendida can reduced Al until 61.23% and combination V. zizanoides with lolime 3g/L + HSC 2.5% can reduced Al 60.03%. V. zizanoidesis and S. splendida were potential for phytoremediation (plant which can reduce toxicity in soil).Key words: Alumunium, P. conjugatum, S. splendida, V. zizanoides
Combination Between Root Pruning and Inoculation Time of Ectomycorrhizal Fungi on Improving Growth of Melinjo (Gnetum gnemon L) Seedling PENGARUH KOMBINASI PEMANGKASAN AKAR DAN WAKTU INOKULASI FUNGI EKTOMIKORIZA TERHADAP PERTUMBUHAN BIBIT MELINJO Arum Sekar Wulandari; Siti Jaenab
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): 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.7.3.217-222

Abstract

The inoculation of ectomycorrhizal fungi that conducted after root pruning could increase the colonization of ectomycorrhizal fungi and growth of melinjo seedling. This research aimed to study the effect of root pruning and inoculation time of ectomycorrhizal fungi on the growth of melinjo seedlings (Gnetum gnemon L). The research were tested in a greenhouse in a completely randomized design with 2 factors for 33 weeks. The first factor is the root pruning (no root pruning as a control, and root pruning 30%). The second factor is the time fungi inoculation (inoculation in the 1st, 2nd, 3rd, 4th and 5th week after root pruning). The combination of root pruning and inoculation time of ectomycorrhizal fungi effected to the growth of melinjo seedlings. The best growth obtained from combination (1) no root pruning and inoculated by ectomycorrhizal fungi in the 1st week, and (2) root pruning 30% and inoculated by ectomycorrhizal fungi in the 3rd week.Key words: ectomycorrhiza, Gnetum gnemon, inoculation time, root pruning, Scleroderma
ANALYSIS BIOECONOMY, GROWTH AND RECOVERY STANDS FELLING FORESTS BASED ON LOCAL WISDOM IN PENAJAM PASER UTARA REGENCY EAST KALIMANTAN PROVINCE Ahmad Yamani; Abubakar M Lahjie; B D.A.S Simorangkir; Rochadi Kristiningum
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S1-S3

Abstract

The purpose of this research are 1) to find out the increment of former forest of dipterocarpaceae and non dipterocarpaceae, 2) to know the increment of dipterocarpaceae as recovery plant at PT ITCI Kartika Utama, East Kalimantan Province, RSSI or Indonesia restoration silvicultural system as a method. The object of this research are the increment of dipterocarpaceae and non-dipterocarpaceae, while as the recovery plant is Shorea johorensis (plot A) and Dryobalanops aromatic (Plot B). The research method used theory production and increment (CAI and MAI). The data got since 2004. It was at the age 10 years while conducted predictions and simulation at the age 50 years. Simulation and production analysis used linier regression method. The result of this research showed increment od dipterocapaceae is 1.33 m³/ha/y (plot A),1.28 m³/ha/y( plot B), and the increment of non dipterocarpaceae is 1.49 m³/ha/y (plot A),1.36 m³/ha/y (plot B) at the age 30 years after logging, meanwhile the increment of recovery plant is 3.6 m³/ha/y (plot A), 2.45 m³/ha/y (plot B) at the age 40 as long as cultivation. The value of bioeconomy and the environment based on local wisdom is 35%. It is higher than market price or goverment price license. It means the value of DR and PSDH should be high because market price is not match with refund of environmental services. Key words: Bio economy, Growth, Logged, Recovery
FERTILIZATING FREQUENCY OF SOYABEANS COMPOST TO THE GROWTH OF SENTANG SEEDLINGS (Azadirachta excelsa (JACK) M. JACOBS) Arifa Mulyesthi Rahmawathi; Nurheni Wijayanto; Andhira Trianingtyas
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S4-S6

Abstract

One of less known timber species is Azadirachta excelsa (Jack) M. Jacobs known with the trading name as Sentang. Fertilizer as a nutrient supply was given to gain high quality seedlings. One of organic material which can be utilized as organic fertilizer is the waste of soybeans harvesting. Soybeans waste could be used as compost. This research aimed to examine the fertilizing frequency of soybeans compost to the growth of Sentang seedlings and compare them with cow manure fertilizer fertilizer. The frequency of fertilizing used were once a week, once in two weeks, once in three weeks, and once in four weeks during 12 weeks observation. The result shows that fertilizing soybeans compost to the Sentang seedlings once in two weeks give significant impact to the growth of diameter, height, total wet mass, total dry mass, and root-crown ratio of Sentang. Key words: Azadirachta excelsa, frequency fertilizing, soybeans compost
THE EFFECT OF ROOT STIMULANT ON ECTOMYCORRHIZAL COLONIZATION OF GNETUM SEEDLINGS (Gnetum gnemon L.) Arum Sekar Wulandari; Rizki Adisetia
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S7-S11

Abstract

Ectomycorrhizal fungi usually infect the young lateral roots. Root stimulant can induce the growth of new lateral roots after application of root pruning. This research is aimed at determining the exact amount of root stimulant concentration that suffices the condition of increased root colonization of gnetum seedling by mycorrhizal fungi. The research were tested in a greenhouse in a completely randomized design for 8 months. Four levels of root stimulant concentation was used, i.e. 0.00%, 1.00%, 1.25% and 1.67%. All treatments were treated with root pruning and ectomycorrhizal fungi (Scleroderma spp.) inoculation. Growth parameters observed were the number of new roots, the percentage of ectomycorrhizal colonization, diameter, height, shoot wet biomass, shoot dry biomass, root wet biomass, and root dry biomass. The results showed that all the roots of Gnetum seedlings infected by Scleroderma spp. Root stimulant had significant effects on increasing the growth of new roots. Root stimulant with concentration 1.67% gave the best growth response on all parameters except root dry biomass. The number of new roots was 35.50, the percentage of ectomycorrhizal colonization 58.47%, diameter 3.57 mm, height 48.21 cm, shoot wet biomass 8.57 g, shoot dry biomass 3.56 g, and root wet biomass 5.81 g.Key words: Gnetum gnemon, mycorrhizal colonization, plant growth, root stimulant, Scleroderma
EFFECTIVITY AND PRODUCT DIVERSIFICATION OF THE BIOLOGICAL POLLINATOR OF Apis mellifera L. IN TORAJA COFFEE PLANTATION MONOCULTURE Budiaman .
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S12-S14

Abstract

Plant flowers and another part of plant in the form of nectar, ekstranutfialnectar, resin and or pollen were abundant and still wasted in the Toraja coffee plantation monoculture Coffea arabica Usda. Apis mellifera L. honey bees is known as one of biology pollinator is easily manipulated and can convert plant flowers into products of high economic value, but its effectivity as a biology pollinator, unknown in monoculture plantations Toraja coffee C. arabica Usda. The purpose of this study was to evaluate the efficacy and product production of biology pollinator of the A. mellifera L. honey bees in Toraja coffee monoculture plantations. Analysis of data to distinguish between treatments (pollination with bees) with no bees used testing the equality of two average t-distribution. The results showed that the the management of A. mellifera L. honey bees as biology pollinator in Toraja Coffee plantations C. arabica Usda , is very effective in improving the quantity amounted to 18.75 % and quality amounted 6.4 % of the coffee fruit production per season. The amount of production diversification of A. mellifera L. honey bees in Toraja coffee plantations are 5 types of products with an average amount of production, ie 0.85 kg of honey, bee pollen 0.51 kg, 0.37 kg beeswax, propolis 0.21 kg and 0.15 kg of bee venom per colony per flowers season.Key words: effectivity, product diversification and biology pollinator.
GROWTH IMPROVEMENT OF Rhizophora mucronata Lamk WITH LATERAL ROOT MANIPULATION TECHNIQUE (LRM) IN MUARA ANGKE, NORTH JAKARTA Cecep Kusmana; Ageng Nurtya; Yadi Setiadi
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S15-S18

Abstract

Mangrove has a strategic functions as a primer producer that able to support the stability between aquatic and terrestrial ecosystems. The damage mangrove plants needs an intense handling to avoid the destruction of mangrove ecosystem. It requires an environmental modification to increase growth quality of mangrove, one of various techniques that can be applied is lateral root manipulation (LRM). This study was aimed to examine the growth response of Rhizophora mucronata seedlings toward the frequency of fertilization by terabuster polymer fertilizer, and addition by rock phosphate and HSC (humate substance complex) fertilizer. Our treatments on this study were different frequency of flushing by 0.5% terabuster polymer fertilizer combined with addition of 500 g rock phosphate, and 0.2% HSC, by using two factorial experiment design on randomized complete block design. The application of LRM combined by addition of rock phosphate and HSC which is flushed by terabuster polymer give a significant effect to the height and stem diameter seedlings. The result of interaction between the treatment fertilization addition and flushing frequency shows that RHF1 (mixed rock phosphate and HSC with flushed by terabuster in a frequency one time in a week) give a significant effect to the stem diameter of seedlings with average growth as large as 0.61 cm (about 254.02% compared to control).Key words: heigth growth, humat substance complex, lateral root manipulation, Rhizophora mucronata Lamk., rock phosphate, stem diameter growth, terabuster.
EFFECTIVENESS OF Beauveria bassiana AGAINST Coptotermes curvignathus Dewi Ramdhania; Noor Farikhah Haneda; Achmad .
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S19-S21

Abstract

Termites are important pests to human life which can cause severe economic loss in Indonesia. Termites are not only attacking the wood products, but also the living plants with wide host distribution. Implementation of biological agents for termites control is one way to reduce the implementation of synthetic termiticide since it is considered to be more environmentally friendly and doesn’t cause resistance to termites. This research aimed to analyze the effectiveness of conidial density levels of Beauveria bassiana from various media types against Coptotermes curvignathus mortality. The research was designed using factorial completely randomized design by combining media types with conidial density levels. B. bassiana suspensions were made from three types of liquid media consist of Potato Dextrose Broth (PDB), Malt Extract Broth (MEB) and Sabouraud Dextrose Broth with Yeast Extract (SDBY). The suspension with density of 108, 106, and 104 conidia ml-1 from PDB, MEB, and SDBY media were applied to Coptotermes curvignathus. The results showed that all types of nutrients sources (PDB, MEB and SDBY) did not affect the virulence of B. bassiana conidial suspensions against C. curvignathus mortality. Nevertheless, C. curvignathus mortality were affected by the differences of conidial density levels from B. bassiana suspension.Key words: Beauveria bassiana, conidial density, media, mortality
POTENTIAL OF FRUIT PRODUCTION TEMBESU (Fagraea fragrans Roxb.) OF OGAN ILIR (OI) AND OGAN KOMERING ILIR (OKI) THE SOUTH OF SUMATERA Dharmawati F. Djam’an; Kurniawati Purwaka Putri; Evayusvita Rustam; Agus Astho Pramono
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S22-S23

Abstract

Tembesu (Fagraea fragrans Roxb.) Is one tree that is very popular in Southern Sumatra region as raw material for carving and furniture industry. The need for wood reaches 3 120 m³ per year and has been supplied from plants that grow naturally or from community forest. The purpose of this study was to determine the production potential of fruit each branch so that it can predict preparations to facilitate the expansion of planting seedlings. Tembesu trees including types with wide adaptability to a place to grow as on dry land, waterlogged soil or land tides. This type includes the category of intermediate cycle (10-30) years. The average production of fruit each branch of Ogan Ilir 38 094.53 fruits, 1000 grain weight of 0.3066 gr and initial KA 7.2% textured clay dusty land. Production of Ogan Komering Ilir with sandy soil texture reach 88 862.27 fruits, 1000 grain weight of 0.2548 gr and initial seed KA 7.7%. The average production of fruit each branch is influenced by soil texture is sandy land (OKI, swamp / stagnant) production higher than that of land dusty clay (OI, dry / stagnant).Key words : tembesu, fruit production, wide adaptability
VARIATION OF FOREST STRUCTURE AND BIOMASS ALLOCATION AMONG DEGRADATION LEVEL OF WEST KALIMANTAN PEATLAND FOREST Dwi Astiani; Lisa M Curran; Mujiman .; Ruspita Salim; Nelly Lisnawati; Dessy Ratnasari; Deddy D Firwanta; Yadi Purwanto
Jurnal Silvikultur Tropika Vol. 7 No. 3 (2016): Jurnal Silvikultur Tropika (Suplemen Desember)
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.7.3.S24-S28

Abstract

Tropical peatland forests in Indonesia are facing a lot of pressure, resulting increased deforestation and degradation ofintact forests. Both natural and anthropogenic cause of changes – concentrated in Sumatra and Kalimantan, Indonesia –has been reported as 3.4% y-1 from 1990 – 2010. Currently, only ~ 41% to 44% of the original peatland forests ofKalimantan left. As a result of both changes, degraded peatlands have altered their balance on their natural conditions androles, since degradation of forest cover is often a complex process with their own of ecological recovery. A study hasbeen executed to explore the effect of forest degradation on forest structure and their biomass allocation in coastalpeatland forest of Kubu Raya, West Kalimantan. Forty eight of a 50 x 50 m sized plots with variety of degradation levelwere assessed for their tree structure, density, stand biomass, and basal area and compared. Results show that forestdegradation shifted tree diameter 10-20 cm dominance on their biomass stocks to larger trees (>20 cm) and smaller one(5-10 cm). Forest structure seems in a good and normal shape from small tree to large one. It is indicated that highdegraded forest demonstrate a decline its biomass allocation, tree density per hectare, basal area on each level of foreststructures.Key words : basal area, peatland forest, stand biomass, tree structure, tree density.

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