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INDONESIA
Indonesian Journal of Forestry Research
Published by Badan Penelitian dan Penegembangan Kehutanan
ISSN : 23557079     EISSN : 24068195     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Indonesian Journal of Forestry Research (IJFR) was first published as Journal of Forestry Research (JFR) on November 2004. The last issue of JFR was Volume 10 Number 2 published on December 2013. The Journal of Forestry Research has been accredited by the Indonesian Institute of Sciences since 2008. The last accreditation was on 21 June 2013 (accredition number: 538/AU3/P2MI-LIPI/06/2013) which will be valid until 2016. IJFR will be issued in one volume every year including two issues which will be delivered every April and October. This journal is published by Forestry Research and Development Agency (FORDA), Indonesia.
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Articles 498 Documents
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UTILIZATION OF AREN (Arenga pinnata Merr.) SAWMILLING WASTE FOR EDIBLE MUSHROOM CULTIVATION MEDIA Djarwanto, Djarwanto; Suprapti, Sihati
Indonesian Journal of Forestry Research Vol 3, No 1 (2016): Indonesian Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2016.3.1.9-18

Abstract

The utilization of unproductive aren (Arenga pinnata) for timber produces waste i.e. sawdust and core. The waste containing of lignocellulosic materials was studied for cultivation medium of edible mushroom. The sawdust was supplemented with rice bran, CaCO3, gypsum, fertilizers, and distilled water. This composite medium was then sterilized in an autoclave on 121 ⁰C, in pressure of 1.5 atmosfir for 30 minutes. After cooling the medium was inoculated with pure culture of four different mushrooms species and incubated in a special room. Biological conversion efficiency (BE) was calculated based on the weight of the fresh mushroom yield to the weight of dry substrate and presented in percentage. Other waste in the form of sawn timber core was cut into 10 cm in wide 5 cm in thick and 120 cm in length, then directly inoculated with six species of mushrooms through drilled holes, then were slanted on bamboo supporter in an angle of around 60⁰ in a hut made of bamboo. The mushroom’s was harvested daily after the mature fruiting body grown. Results showed that the material supplementation on sawdust most likely to improve the mushrooms yield. Found that the BE values are 21.97-89.45 % (for Pleurotus flabellatus), 15.36-105.36 % (for P. ostreatus), 63.88-76.86 % (for P. sajor-caju), and up to 62.88% (for Lentinula edodes). The average yield from a piece of sawn timber core was 210g (for P. ostreatus), 368g (P. flabellatus), 331g (P. sajor-caju), and 48g (Auricularia polytricha), however, P. cystidiosus and L. edodes on aren stem core were fail to grow.
PARASITES AND PREDATORS OF Laccifer lacca Kerr. ON LAC CULTURE IN EAST SUMBA, EAST NUSA TENGGARA Sujatmoko, Sujarwo
Indonesian Journal of Forestry Research Vol 6, No 2 (2009): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2009.6.2.119-125

Abstract

ANATOMICAL CHANGES OF KEKABU WOOD (Bombax ceiba L.) DUE TO MECHANICAL DENSIFICATION Krisdianto, Krisdianto; Balfas, Jamal
Indonesian Journal of Forestry Research Vol 2, No 1 (2005): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2005.2.1.27-36

Abstract

Kekabu wood  (Bombax  ceiba L.), which is  locally known as kapok or randu  has long been planted  as crops troughout  the country, as fiber producer aimed for stuffing  pillow. This species is considered as a giant tree which could produce a large quantity of timber. Unfortunately, the timber is too soft, having low density and several physical defects during drying, limiting its uses in conventional wood processing. Any treatment which could significantly increase its structural density may be useful for diversifying the uses of this timber.   This study examined some anatomical changes that may exist during mechanical densification. Wood samples measuring 40 mm thick, 40 mm wide and 500 mm long were steamed at 126°C for 30 minutes prior to  pressing of 23.75 kg/cm.  Anatomical measures were undertaken using light microscope and scanning electron microscope  on both treated and untreated samples. Results showed that the treatment  significantly reduced void volume and ray distance of approximately a half the initial wood structure, followed by an increased in wood density of more than 50%.
TANNIN RESORCINOL FORMALDEHYDE AS POTENTIAL GLUE FOR THE MANUFACTURE OF PLYBAMBOO Santoso, Adi; Hadi, Yusuf Sudo; Malik, Jamaludin
Indonesian Journal of Forestry Research Vol 9, No 1 (2012): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2012.9.1.10-15

Abstract

TREES AND REGENERATION IN RUBBER AGROFORESTS AND OTHER FOREST-DERIVED VEGETATION IN JAMBI (SUMATRA, INDONESIA) Tata, Hesti L.; Noordwijk, Meine van; Werger, Marinus
Indonesian Journal of Forestry Research Vol 5, No 1 (2008): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2008.5.1.1-20

Abstract

The rubber  agroforests  (RAF)  of Indonesia provide  a dynamic interface  between natural  processes  of forest  regeneration and  human’s management   targeting  the harvesting  of latex  with  minimum investment  of time  and financial  resources.  The composition  and species richness  of higher  plants  across an intensification gradient from forest to monocultures of tree crops have been investigated  in six land use types (viz. secondary forest, RAF, rubber monoculture, oil palm plantation, cassava field and Imperata grassland)  in Bungo,  Jambi  Province,  Indonesia.  We emphasize  comparison of four different  strata  (understory, seedling,  sapling  and tree) of vegetation  between forest and RAF,  with  specific interest  in plant  dependence  on ectomycorrhiza fungi. Species richness  and species accumulation curves for seedling  and sapling  stages were similar  between forest and RAF,  but in the tree stratum  (trees > 10 cm dbh) selective thinning by farmers was evident in a reduction  of species diversity and an increase in the proportion of trees with edible parts. Very few trees dependent on ectomycorrhiza fungi were encountered  in the RAF. However, the relative distribution of early and late successional species as evident from the wood density distribution showed no difference between RAF and forest.
INITIAL SCREENING OF FAST-GROWING TREE SPECIES BEING TOLERANT OF DRY TROPICAL PEATLANDS IN CENTRAL KALIMANTAN, INDONESIA Saito, Hideyuki; Shibuya, Masato; Tuah, Sehat Jaya; Turjaman, Maman; Takahashi, Kunihide; Jamal, Yahya; Segah, Hendrik; Putir, Patricia Erosa; Limin, Suwido Hester
Indonesian Journal of Forestry Research Vol 2, No 2 (2005): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2005.2.2.107-115

Abstract

An investigation of the recruit, survivorship and growth of naturally regenerating tree species on canal bank was conducted to  select tree species which are suitable for preceding planting in drained and burnt peat swamp lands in  Central Kalimantan, Indonesia.  Top of  the canal bank were open, with greater soil moisture  deficit and higher soil temperatures than on the next intact forest floor. The abundant  trees were asam-asam (Ploiarium alternifolium),garunggang (Cratoxylon arborescens) and tumih (Combretocarpus rotundatus). New regeneration of these trees on the canal bank was confirmed during this investigation and mortality was very low. These results indicated that P. alternifolium,C. arborescens and C. rotundatuswere tolerant of intensive radiation, soil drought and high soil temperatures during germination. The annual height increments  were 189-232  cm y-1 (P. alternifolium),118-289  cm y-1  (C. arborescens)and 27-255 cm y-1   (C. rotundatus); thus, these three species could be classified as fast-growing with tolerance to open and dry conditions.  Such characteristics were important to avoid competition with herbs, ferns,and/ or climbers. The results·suggest that P.alternifolium,C. arborescens and C. rotundatusare suitable for preceding planting for the rehabilitation of the disturbed peat swamp forests of Central Kalimantan.
FERTILITY VARIATION AND EFFECTIVE POPULATION SIZE IN A TEAK CLONAL SEED ORCHARD Sumardi, Sumardi
Indonesian Journal of Forestry Research Vol 8, No 1 (2011): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2011.8.1.65-78

Abstract

A 27 year old  clonal seed orchard of teak (Tectona grandis L.f ) in Padangan, East Java comprising 24 clones, was evaluated for fertility, offspring diversity, and genetic drift. Flower and fruit productions were used to assess clone fertility in the orchard. Fertility variation measured as ‘sibling coefficient’ was found to be 1,62, having high genetic diversity (0,97) and low coancestry (0,03). The clones varied in fertility in which,  25 % of the most fertile clones in the orchard contributed to 47,5 % of flower and fruit yields. Effective population size in the orchard was 15, indicating that 15 of the clones contributed effectively to seed yield. Separating on the amounts of seeds that can be collected, individual collection, and proportional mixing of seed per clone might be useful in restricting over representation of highly reproductive clones thereby increasing genetic diversity in the seed crop. Another way to improve seed yield in the orchard is by increasing the effective population size. Thinning or prunning on highly reproductive clones might be useful in increasing effective population size.
THE EFFECT OF INDIVIDUAL SELECTION FOR GENETIC DIVERSITY OF Acacia mangium SEEDLING SEED ORCHARD USING AFLP MARKERS Widyatmoko, A. Y.P.B.C.; Shiraishi, S.; Nirsatmanto, A.; Kawazaki, H.
Indonesian Journal of Forestry Research Vol 3, No 2 (2006): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2006.3.2.75-81

Abstract

Establishment of seed orchard is aimed at producing good quality seeds which is an important activity for breeding program. Seed orchard is also a base population, thus its genetic diversity is depending on its design and composition (provenance, family and individual tree). Selection of an individual tree in seed orchard is needed for the enhancement of  retaining good-character trees. However, selection of individual tree can change the genetic diversity of seed orchard, and the degrees to which the genetic diversity will change depend on the used selection methods. In order to investigate the effects of selection methods, 4 simulations of selection methods based on height, diameter and stem performance of individual trees were used. The differences among the 4 methods were the ranking of individual trees those selected, and families and provenances those have been represented. Seedling seed orchard of Acacia mangium in Wonogiri, Central Java was used as materials.Analysis of genetic diversity was carried out using AFLP markers. Nine primer combinations were used to produce 1025 AFLP banding patterns. Among those banding patterns, only 109 were polymorphic markers. No significant effect of individual tree selection was revealed in this study. Even though the selection was done intensively, only 7.1% of genetic diversity was reduced. In other words, the selection activity did not reduce the genetic diversity of seed orchard significantly. The result is important for developing future tree improvement of A. mangium, including development of hybrid between A. mangium and A. auriculiformis.
DISTRIBUTION OF Hoya multiflora Blume AT GUNUNG GEDE PANGRANGO NATIONAL PARK, INDONESIA Rahayu, Sri; Kusmana, Cecep; Abdulhadi, Rochadi; Jusuf, Muhammad; Suharsono, Suharsono
Indonesian Journal of Forestry Research Vol 7, No 1 (2010): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2010.7.1.42-52

Abstract

Hoya multiflora is one of the valuable germplasm in Indonesia that has been utilized as ornamental and medicinal plant. This epiphytic plant faces problems in decreasing habitat. As a means for developing a habitat framework for describing the distributions and ecological relations of H.multiflora at Gunung Gede Pangrango National Park, Bogor, Indonesia, ecological study of this species was established over the ranges of altitudes and characteristic vegetation structural types (primary and secondary forest, and plantation) present in the Park. Recognizing the fact that such study requires multidisciplinar y data, this paper explores the evidences from both herbarium sheets and field observations. The result of the study showed that the population of this species was only found at the Bodogol Research Station at elevation of 700 - 900 m above sea level (a.s.l.). Thus, the facts contradict with the evidence from the herbarium sheets of the Herbarium Bogoriense which have presumed that this species has a wide variation of altitudinal range from 20 to 1500 m a.s.l. (Indonesia) or 200 - 1400 m a.s.l. ( Java). The Bodogol’s population showed the clumped type of dispersion (Morisita’s Index = 1.35), which indicated such environment that was characterized by patchy resources. Direction and speed of wind coupled with the topography are ecological factors that affect to the distribution of this parachute typed seeds of the H.multiflora.
THE CCB TREATMENT OF SIXTEEN INDONESIAN WOOD SPECIES AGAINST MARINE BORERS Muslich, Mohammad
Indonesian Journal of Forestry Research Vol 3, No 1 (2006): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2006.3.1.41-53

Abstract

This  study was conducted to provide basic information  on the treatment of some wood species using a copper bichromated boron (CCB).  The specimens  were treated with CCB for 2 hours  in a 150 psi of full cell process.  The treated and untreated wood samples were tested against marine borers for 4, 8 and 12  months.  The results indicated that full cell process with CCB were able  to prevent marine borers  attack. Untreated  wood  specimens were susceptible to marine borers attack, except Iara (Metrosiderospetiolata Kds.) and kandole  (Diploknema oligomera HJ.L.).  The attacking borers  are Martesia striata Linn of the Pholadidae   family, Teredo bartschi Clapp.,  Dicyathifer manni Wright and Bankia  cieba Clench.  of the Teredinidae family. However, crustaceans   were found clinging to the wood specimens when they were taken from the sea. These crustaceans belongs to Sphaeromatidae family.

Page 22 of 50 | Total Record : 498

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