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JURNAL PEMULIAAN TANAMAN HUTAN
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Articles 5 Documents
Search results for , issue " Vol 4, No 2 (2010): Jurnal Pemuliaan Tanaman Hutan" : 5 Documents clear
TOLERANSI MASAM Vitex pubescens VAHL. IN -VITRO DAN EX-VITRO Putri, Asri Insiana
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 2 (2010): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2010.4.2.79-89

Abstract

This study aims to observe acid tolerance of Vitex pubescens culture growth. Planlet cultures were established from seeds on Murashige & Skoog medium supplemented with 1 µM benzylaminopurin; 0,1 µM kinetin and 0,01 µM naphtalenaceticacid. The pH was adjusted to 5,7;4,0 and 3,0. The mean height of planet were 4,44 cm ± 0,32 for pH 5,7; 2,88 cm ± 0,54 for pH 4 and 1,10 cm ± 1,38 for pH 3. The mean length of root were 13,72 cm ± 0,47 for pH 5,7; 18,88 cm ± 0,60 for pH  and 19,27 cm ± 0,73 pH 3. The mean number of branch roots per cm were 1,65 ± 0,058 for pH 5,7;3,88 ± 0,18 for pH 4 and 0,57 ± 0,30 for pH. After 12 weeks acclimatization in Yellow Red Podzolic (YRP) soil, the mean height of plant with pH 5,7 culture were 29,86 cm ± 0,64 and 26,72 cm ± 0,40 for pH culture. In vitro acid tolerance of Vitex pubescens were at pH 4 and can grow in ex vitro condition in YRP soil with pH 4,48.
RESPON POPULASI Eucalyptus occidentalis TERHADAP SELEKSI KONDISI GARAM TINGGI PADA UJI TERKONTROL DAN UJI LAPANGAN Hendrati, Rina Laksmi
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 2 (2010): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2010.4.2.91-100

Abstract

Global changes together with rising number of human population, industrial development, and exploitation of natural vegetation, are the main factors causing high salinity in many regions of the world. Trees tolerant to grow in saline regions are crucially needed and can be used as an effective means to control or even decrease salinity. Eucalyptus occidentalis, a Western Australia native tree spesies that is highly tolerant to salt has a wide range of natural habitats from waterlogged, highly saline to arid regions. Selections of provenances and families from throughout its natural distribution are needed to identify the most tolerant genotypes within this species. Comparative performances of E. occidentalis under salt and/or waterlogged conditions were investigated under controller condition and in field trial. An initial screening of 25 provenances was conducted for salt tolerance ranging from 0 mM to 300 mM under control, waterlogged, dry salt and salt treatments. Nine provenances selected from the first screening were exposed to similar treatments up to 550 mM of salt concentration. The same seed collections of 23 provenances were germinated at the same time and planted in field trial in Roberts, South Western Australia. Salt concentration of 300 mM did not affect E. occidentalis growth, and therefore it is not an appropriate level for selection. Under 550 mM of salt concentration, plants were depressed and differences between provenaces are much more noticeable. There were different responses of E. occidentalis populations on selection under high salinity between controlled condition and in field trial.
PERTUMBUHAN DAN PARAMETER GENETIK UJI KETURUNAN SENGON (Falcataria moluccana) DI CIKAMPEK, JAWA BARAT Hadiyan, Yayan
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 2 (2010): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2010.4.2.101-108

Abstract

Genetically improved seed is one of the important factors in producing a high volume increment of sengon (Falcataria moluccana (Miq.) Barneby & J. W. Grimes) Plantation forest in Indonesia. A progeny test of sengon was established at Cikampek West Java in 2008. The plot was arranged in a randomized complete block design, consisting of 80 families, 4 tree line plot and 6 blocks. At 6 and 12 months of age the progeny test was measured for stem diameter and  height growth. Seed source and family had significant effect on both stem diameter and tree height at six months old, but the seed source did not have significant influence on growth at one year old. Heritability estimate for stem diameter was low (h2i = 0.07) while that of height was moderate (h2i = 0.10). Genetic correlation between diameter and height was strong (rg = 0.90), while age-age correlation for diameter (-0.05)  and height (0.04) were low.
ANALISIS SISTEM PERKAWINAN MERBAU (Intsia bijuga O. Ktze) DI PAPUA BERDASARKAN PENANDA ISOENZIM Mahfudz, Mahfudz; Sumardi, Sumardi; Hardiyanto, E B
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 2 (2010): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2010.4.2.109-116

Abstract

Merbau (Intsia bijuga O. Ktze) is an important species to supply wood in Indonesia. Mating system on natural population of merbau can influence genetic diversity of merbau. The objectives of this study were to investigate mating system on natural forest of merbau in Papua. The research used 200 samples of merbau from 10 mother trees in Gunung Meja Forest Research Manokwari-Papua. Isoenzyme analysis was done using four enzyme systems i. e. Peroxidase (POD), Esterase (EST), Glutamate Oxaloacetate Transaminase (GOT) dan Diaphorase (DIA). Data were analysed using MLTR program. The result showed that average genetic diversity (He) 0.463 and total heterozygosity (HT) 0.496. The multilocus population outcrossing rate (tm) and singlelocus population outcrossing rate (ts) were tm = 1.00 and ts = 0.992. Probability of inbreeding rate (tm  - ts) = 0.008.
KERAGAMAN GENETIK POPULASI Araucaria cunninghamii MENGGUNAKAN PENANDA RAPD (RANDOM AMPLIFIED POLYMORPHIC DNA) Widyatmoko, AYPBC; Patrisia Lejo, Elisabeth Selda; Prasetyaningsih, Aniek; Rimbawanto, Anto
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 2 (2010): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpth.2010.4.2.63-77

Abstract

Genetic diversity was needed for supporting genetic conservation and tree improvement program. Araucaria  cunnighamii is one of Indonesian conifer species which has various potential uses. Information about genetic diversity and its distribution, and genetic relationship can be revealed using RAPD (Random Amplified Polymorphic DNA) molecular marker. The objective of the study was to analyze genetic diversity within and among 8 populations of A. Cunninghamii, and genetic relationship between populations. Leaf samples of 64 trees were collected from 7 population in Papua and 1 population in Queensland (Australia). Genetic diversity was analyzed using 23 RAPD primers with 68 polymorphic loci. Mean genetic diversity within population was 0.270, and mean genetic distance among populations was 0.092. Some of the samples from the same population were grouped in the same cluster. But generally, the clustering of the samples. Genetic relationship among A. cunninghamii populations revealed that 8 populations were divided into two groups. First group was consisted of 7 population in Papua (Indonesia) and then split into 5 subcluster. Second group was population in Queensland (Australia).

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