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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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Intensitas Cahaya, Suhu, Kelembaban dan Perakaran Lateral Mahoni (Swietenia macrophylla King.) di RPH Babakan Madang, BKPH Bogor, KPH Bogor Nurheni Wijayanto; Nurunnajah Nurunnajah
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Light Intensity, Temperature, Humidity and Rooting System of Mahogany (Swietenia macrophylla King.) in RPH Babakan Madang, BKPH Bogor, KPH BogorPlanting space in agroforestry system was one of important tree rooting was one of important factor that determine tree rooting. It was caused by the relation between planting space and light availability that could penetrate into main plant canopy and space availability for rooting. One of commonly used plant in agroforestry was mahogany which has deep rooting system and has a single main root thus could be combined with shallow rooting system plants as its understory. This research was supposed to know the light intensity, temperature and humidity in mahogany stands and to know the length and depth of mahogany horizontal root as a reference to determine suitable crop plants for that rooting condition. Observed parameters in this research were light intensity, crown coverage percentage, temperature, humidity, and length and depth of mahogany horizontal root. Research results show that light intensity value in young mahogany stands was 24.62% and in old mahogany stands was 19.17%, while crown coverage percentage in those two stands was respectively 36.50% and 84.38%. Value of that light intensity wasn’t compared caused of its different time in data collecting. Temperature in sample plot in young mahogany stands and the old ones was 28,53o C and 28,07o C, while its humidity was 75.12% and 75.23%, respectively. Length of horizontal root in young mahogany stands and the old ones was 0.68 m and 1.68 m, while its horizontal depth was 9.95 cm and 12.58 cm, respectively. Other observed parameter was tree dimension (diameter, height, and crown area), that supposed to know the growth quality of observed mahogany. Research results show that mahogany stands could be combined together with crop plant if it seen from light intensity, temperature and humidity aspects. Higher crown coverage along with the increasing of main plant (mahogany trees) has to be combined with suitable and high economic value crop plant. Some recommended crop plant for young mahogany stands are ginger and pandan, while for old mahogany stands were tuberous plant and kapulaga.
Pendugaan Korelasi antara Karakteristik Tanah terhadap Cadangan Karbon (Carbon Stock) pada Hutan Sekunder Omo Rusdiana; Rinal Syahputra Lubis
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Estimation Correlation between Soil Characteristics Toward Reserved Carbon (Carbon Stock) in the Secondary ForestForest ecosystem is a unity which is closely related to the natural processes that have a complex role in maintaining the stability of constituent components of the ecosystem. The complex role of the forest is to maintain the stability of the global climate and soil protection. Related to global climate stability and international issues of climate change, forests have an important role as a source of carbon emissions (source) and carbon sinks and stores (sink). Related to the stability and the protection of soil, soil has characteristics that can help the growth of vegetation. The greater fertility of the soil, the greater expected growth of vegetation, it can be implied that the greater the carbon stored on the forest stand as well as on the under plants or litter. Therefore, this study aims to determine carbon deposits and the characteristics or site qualities in secondary forests, suspect and find out whether the characteristics of the soil has a high or low correlation to the carbon stored in secondary forest.Carbon stored in secondary forests of 41948,75 kg/ha of which 91,36%, equivalent to 38326 kg/ha of carbon stored in standing and 8,64%, equivalent to 3622,75 kg/ha of carbon stored in plants and litter below. Then the results obtained from soil characteristics include pH = 4,22, CEC = 17,05 me/100gr, C-organic = 2,86 %, organic matter = 4,97 %, N-total = 0,27 %, C/N ratio = 10,73 %, P-total = 2,22 ppm, K-total = 0,34 me/100gr, bulk density = 1,1 gr/cm3, and soil porosity = 57,96 %. When viewed overall, whether chemical composition and nutrient content of soil, conclude that the soil fertility status fall into the low category. This is because the content of the element P in the soil is so low that indicates a low soil fertility. After tested the correlation between soil characteristics and stored carbon (C-stock) is obtained that the pH, the C-organic, organic matter, total N, and K soil has a correlation or effect of carbon stored in the secondary forest.
Respon Pertumbuhan Anakan Shorea leprosula Miq, Shorea mecistopteryx Ridley, Shorea ovalis (Korth) Blume dan Shorea selanica (DC) Blume terhadap Tingkat Intensitas Cahaya Matahari Andi Sukendro; Eri Sugiarto
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

The Growth Response of Saplings Shorea leprosula Miq, Shorea mecistopteryx Ridley, Shorea ovalis (Korth) Blume dan Shorea selanica (Dc) Blume toward Sunlight Intensity LevelMeranti is one of the commercial wood that has been recognized by many countries of Southeast Asia with a variety of trade names, especially the kind of red meranti (Shorea spp.). Red Meranti, including endemic species in Indonesian including threatened extinct namely  Shorea leprosula (Kalimantan),  Shorea ovalis (Kalimantan) and  Shorea selanica (Maluku) are entered into the IUCN Red List (Ashton 2011). The giving of shade on meranti saplings is very important in both the field and in the nursery. The giving of shade plants performed as meranti is the kind of gap opportunist in where light is a limiting factor for early growth.This research observe the growth response of red meranti saplings of S. leprosula, Shorea mecistopteryx, S. ovalis and  S. selanica with treatment  shade 0% (light intensity 100%), 20% shade (light intensity 80%), 40% shade (light intensity 60 %), 60% shade (light intensity 40%). The experiments did  with two factorial completely randomized design. The results of research treatment shade showed that red meranti saplings of S.  leprosula, S. mecistopteryx, S. ovalis, and  S. selanica real influential. The treatment shade 60% (light intensity 40%) give the best response to the growth of S. leprosula, S. mecistopteryx, S. ovalis, and S. selanica.
Pengaruh Pemberian Zat Pengatur Tumbuh NAA dan IBA Terhadap Pertumbuhan Semai Cabutan Tumih [Combretocarpus rotundatus (Miq.) Danser] Istomo Istomo; Fauzi Kiswantara
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

The Influence of Plant Growth Regulators NAA and IBA on the Growth of Stump Seedling of Tumih [Combretocarpus rotundatus (Miq.) Danser]Tumih which has a Botany name Combretocarpus rotundatus is one of the species that lives in peat swamp forests. C. rotundatus often found in secondary forests or forests with open canopies. Nowadays deforestation often occurs in Indonesia, it is feared this species will be decrease and lead to scarcity of it in natural forest. C. rotundatus also have characteristic that suit for plan in effort to initiate rehabilitation of agitated peatlands. Efforts to propagate this species was applied by the stump method. The research conducted aims to determine the life and growth of tumih by giving the Plant Growth Regulators. The results showed that the percentage of life that is obtained for NAA at 66.67%, 68.89% of IBA, NAA and IBA combination of 71.11% and 64.44% for controls. Other factors that may affect it is initial height of plants and environmental conditions in research.
Perbandingan Sifat Kimia dan Biologi Tanah Akibat Keterbukaan Lahan Pada Hutan Reboisasi Pinus di Kecamatan Pollung Kabupaten Humbang Hasundutan Sumatera Utara Basuki Wasis; Yadi Setiadi; Mohamad Eko Purwanto
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Comparison of Soil’s Chemical and Biological Characteristics Caused Land Openness of Pine Reforested Forest in Pollung Sub-district of Humbang Hasundutan District, North Sumatera.Forest clearing activity has been caused land openness in some forest areas such as reforested forest. Land openness could cause the decreasing of fertility value of forest soil. The objective of this research was to comparing of soil’s chemical and biological characteristics in open area with pine forest in pine reforested forest in Pollung sub-district of Humbang Hasundutan district, North Sumatera. This research was using secondary data of soil’s chemical and biological characteristics analysis results from Team of Living Environmental Ministry 2010. Descriptively, this research has shown that land openness has caused lower comparison of all average value of soil’s chemical and biological parameters. Highest percentage of comparison difference in open area was total of C-organic content that amounted 59.90% and total of soil fungi that amounted 94.18 % lower than pine forests. Degradation of soil’s chemical and biological values was caused by the decreasing of total organic content of soil and nutrient washing by rain water. Considering to negative impact that will be caused thus needed an effort of soil resiliency through land rehabilitation by whitewashing of acid soil and re-vegetation
Uji Patogenitas Ganoderma terhadap Bibit Tanaman Sengon (Paraserienthes falcataria (L) Nielsen) Elis Nina Herliyana; Irfan Kemal Putra; Darmono Taniwiryono
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Patogenity Test of Ganoderma Over the Sengon Seedlings  (Paraserienthes falcataria (L) Nielsen)Sengon tree (Paraserianthes falcataria (L.) Nielsen) often used by farmers as component planted in agroforestry system as well as shade trees planted in between other crops such as coffee and cacao. Ganoderma infection, basal stem rot disease is becoming more prevalent and causing significant loss in sengon tree and other estate crops. The aim of this research is to understand how the effect of the inoculation to the sengon seed.There are two majors in the research i.e. non inoculation and inoculation treatments. Each treatment consisted of three observation blocks that are considered equal and each block consisted of four plants (the seeds sengon age one and a half months) as replicates. The non inoculation treatments are all combinations of root and foodbase treatments. Foodbase treatment itself is divided into two i.e. the sengon wood piece with varying size (3, 4, and 5 cm diameters) and PDA (Potato Dextrose Agar) without inoculation of Ganoderma lucidum SP1 (Ganoderma SP1) from Ciamis area (from lamtoro tree) and isolates of G. lucidum SP2 (Ganoderma SP2)  (from sengon plants) derived from the collection of Forest Pathology Laboratory.In general, the result of control treatments calculation has a better average growth compared to the inoculation treatment. This result can be seen on the accretion parameter of heights and leaflets. It is possible to do the observation on the treatment of the inoculation with the negative growth tendencies. The calculation on pathogenity test shows that Ganoderma  SP2 has more pathogenic than Ganoderma  SP1.
Analisis Keragaman Genetik Kelompok Pleurotus dengan Teknik Polymerase Chain Reaction- Restriction Fragment Lenght Polymorphisms (PCR-RFLP) Elis Nina Herliyana; Reny Meisetyani; Iskandar Z Siregar
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Analysis of Genetic Variability of Pleurotus group with Polymerase Chain Reaction-Restriction Fragment Lenght Polymorphisms (PCR-RFLP) TechniqueThe research was done in Forest Pathology Laboratory and Sylviculture Laboratory, Forest Faculty, Bogor Agriculture University. The observed is too know the genetic variability of Pleurotus group and compare it with the morphological variability also applications of PCR-RFLP in Pleurotus group.PCR-RFLP using the primers ITS1 and ITS4 can be applied to the Pleurotus group. The use of Alui restriction enzymes can give results ribbon cutting DNA from PCR-RFLP results. The result of genetic variability by PCR-RFLP showed differenced compare to genus and morphological variability.
Kuantitas dan Kualitas Kecambah Sengon pada Beberapa Tingkat Viabilitas Benih dan Inokulasi Rhizoctonia sp. Achmad Achmad; Sri Suharyati Vityaningsih; Eny Widajati
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Quantity and Quality of Sengon Sprouts at Some Levels of Seed Viability and Rhizoctonia sp. InoculationThe purpose of this research was to evaluate the quantity and quality of sengon sprouts with several levels of  seed viability and inoculation of Rhizoctonia sp. Materials used was three lots of sengon seed with different levels of viability obtained from Forest Management Unit Pare - Kediri and  Rhizoctonia sp. isolate cultured on PDA media. The treatments tested were 3 levels of seed viability  and 4 levels of Rhizoctonia sp. inoculum. The results showed that seeds with higher viability levels (seed germination = SG 87 and 83 %) produce more sprouts, indicated by the germination percentage which was significantly higher than that of  seeds with lower viability. Rhizoctonia sp. inoculation decreased the number of sprouts, indicated by the germination percentage which was significantly lower. The attacked of Rhizoctonia sp. on sengon sprouts was not associated with the level of seed viability, the lowest inoculum levels (3 corkborer 10-1 ml media) caused high percentage of seedlings death (57%) even  at the seed with high level of viability (SG 87%). The quality of the sprouts were not influenced by the level of seed viability, indicated by the length of roots and hyphocotil of normal sprouts which was not significantly different of sprouts from the seed with higher viability level (SG 87%, root length  2,71 cm, hypocotile length 3,00 cm) than that of the seed with lower viability level (SG 56%, root length  2,38 cm, hypocotile length 2,66 cm).
Mekanisme Serangan Patogen Lodoh pada Semai Pinus (Pinus merkusii) Achmad Achmad; S. Hadi; S. Harran; E. Gumbira Sa'id; B. Satiawiharja; M. Kosim Kardin
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Attack Mechanism of Damping-off Pathogens of Pinus merkusii SeedlingThe study aims to determine the attack period of damping-off pathogen, i.e.  F. oxysporum and  R. solani, on  P. merkusii, as well as studying the role of cellulolytic and pectolitic enzymes in the attack mechanism of both damping-off  pathogens. Attack period determined by inoculated the two pathogenic fungi to seed or some age level of  P. merkusii seedlings. Cellulolytic enzyme activity, represented by cellulase-C1, was determined by spectrophotometric techniques. Pectolitik enzyme activity, represented by polygalacturonase, determined by iodometric techniques and growth of the two pathogenic fungi in the medium containing pectin. The results showed that the attack period of damping-off pathogen, i.e. F. oxysporum and R. Solani, on P. merkusii seedling started from seed to 7-week old seedling, the 8-week old seedlings were free from damping-off. Both pathogens showed cellulase-C1 activity, and the enzyme activity in F. oxysporum is higher than that in  R. solani. Iodometric technique could not detect the polygalacturonase activity of two fungal pathogens, presumably because  P. merkusii stem seedling substrate  which used in testing was too few. Nevertheless the two pathogenic fungi grew more intensively in medium containing pectin shown by higher mycelial dry weight than in media without pectin, and it shows the that the fungi capable to degrade pectin using pectolytic enzymes and use the carbon produced for growth.
Potensi dan Pemanenan Buah Rotan Jernang Juang Rata Matangaran; Lana Puspitasari
Jurnal Silvikultur Tropika Vol. 3 No. 1 (2012): 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.3.1.%p

Abstract

Potential and Harvesting of Jernang Rattan FruitOne kinds of Non Timber Forest Products (NTFPs) which high economic value is a product derived from rattan fruit called “jernang” or dragon blood’s. Jernang is used for colloring in batik industry and porcelain industry, as a mixture of cure such as wounds medicine.  The research was conducted to analyse  the potential of jernang  rattan fruit and to describe the technique of harvesting jernang rattan fruit of the community. The reseach was conducted at natural forest and community forest at  Sarolangun district at Jambi Province.Potential of jernang at natural forest is 96.51 tons per year and form the community forest is 130.16 ton per year, therefore the total potential of jernang from Sarolangun district is about 226.66 tons per year.The mature fruit which suitable to be harvested is the rippen enough. The colour of ripe jernang fruit which suitable to be harvested is the brownish red color. The fruit takes time about 11−13 months to be ripe fruit. Farmers harvest the fruit by using a hook tool and a pole, then if the rattan is too high the farmer climbs its host tree.

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