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JURNAL PEMULIAAN TANAMAN HUTAN
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Core Subject : Agriculture,
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Articles 5 Documents
Search results for , issue " Vol 4, No 1 (2010): Jurnal Pemuliaan Tanaman Hutan" : 5 Documents clear
PENAMPILAN KLON DAN SEMAI DUA FAMILI Eucalyptus occidentalis BERTOLERANSI GARAM TINGGI DAN RENDAH PADA KONDISI TERGENANG DAN SALINITAS TINGGI Hendrati, Rina Laksmi
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 1 (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.2010.4.1.9-23

Abstract

Clonal materials are often collected for testing under extreme condition. Clonal production through mass vegegetative propagation is also common for deployment of improved genotype. Root development of clones compared to that of seedlings will further determine the subsequent growth. Eucalyptus occidentalis ability to grow under extreme conditions (waterlongging and/or salinity) drives the importance of provenance and family selection from materials collected throughout its natural distribution. Performance of clone and seedling under waterlogging and salt  waterlogging conditions of two E. occidentalis families, high and low salt tolerant, were investigated. Seedling (4.5 months) and cutting/clones (5.5 months) were exposed to control, waterlogged and salt waterlogged conditions reaching to sea salt level (500 mM Nacl). Seeding and cutting performances were determined by ability of plant type and family to produce roots and consequently initial leaves to support their growth. Seedlings and cutting of high torelant family 153-Red Lake perform better than low tolerant family 96 Lake Magenta under high level of salinity. Under high salt concentration, seedling are better than cutting for family 153- Red Lake, but both plant types perform similiarly for family 96-Lake Magenta. Sanility hinders shoot and root development. Under inundation, E. occidentalis tends to decrease shoots rather than roots. For clonal growth improvement, propagation method to produce root abundance is necessary. 
PENGEMBANGAN PENANDA MIKROSATELIT PADA Pinus merkusii MENGGUNAKAN METODE DUAL SUPRESSION DAN SCREENING PENANDA Nurtjahjaningsih, ILG
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 1 (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.2010.4.1.25-35

Abstract

Aims of this study were to develop and characterize microsatellite markers from three species of Pinus i.e P. densiflora, P. Pinaster and P. Taeda were screened to amplify microsatellite in P. merkusii. The results showed that 5 out of the 12 developed microsatellite markers by dual suppression amplified at a single polymorphic locus; otherwise there was no polymorphic locus of the 12 screened microsatellite markers. However, it is difficult to compare the efficiency of these two method because of the limited number of the screened primers used in this study.
PENGARUH SIFAT FISIKA MEDIA TERHADAP KEMAMPUAN BERAKAR DAN PEMBENTUKAN AKAR STEK PUCUK Shorea playlados DI PT. SARI BUMI KALIMANTAN TENGAH Hardiwinoto, Suryo; Adriana, Adriana; Nurjanto, Handojo Hadi; Widiyatno, Widiyatno; Dhina, Fransisca; Priyo, Eko
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 1 (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.2010.4.1.37-47

Abstract

Seedling production of S. platyclados through vegetative propagation offers various advantages particularly mass production of good quality seedling in a certain time can be attained. Shoot cutting is affected by various factors including the physical properties of several media on rooting ability and early root development of S. platyclados shoot cuttings. Completely Randomized Design (CRD) was used with 6 replications. Three medium used were Dipterocarp wood sawdust, wood sawdust + rice husk (2/1), and rice husk charcoal. Result showed that wood sawdust bulk density was highest (0.36 kg/l) in compare to that of wood sawdust + rice husk (0.29 kg/l) and rice husk charcoal (0.17 kg/l). The bulk density has positively correlated (r = 0.97) with Water Holding Capacity (WHC) and negatively correlated with porosity (r = -0.99). Rooting ability of the shoot cutting in sawdust + rice husk (2/1) was highest (63%) in compare to that in wood sawdust (43%) and positively correlated with porosity (r=0.59). Early root development in the media did not show significant difference; however, the media of wood sawdust and wood sawdust + rice husk (2/1) tended to have a better early root development compare to rice husk charcoal.
UJI SOMATIK INKOMPATIBILITAS Ganoderma philippii UNTUK MENGETAHUI POLA SEBARAN PENYAKIT BUSUK AKAR PADA TANAMAN Acacia mangium Puspitasari, Desy; Rimbawanto, Anto
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 1 (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.2010.4.1.49-61

Abstract

Ganoderma  philipii is a fungi causing root rot disease that have spread widely in Acacia mangium plantation. Study on mode of disease spreading is necessary to develop ways of controlling the spread of the disease. Somatic incompatibility test was carried out using fungal cultures that has been identified as G. philippii from two sites of different rotation. Each location showing different type of incompatibility. Compatible reaction was observed at Logas of first rotation indicating that the isolates are not genotypically distinct and may come from closely related clones. At this site the spread of root rot occurred by root to root contact. Incompatible reaction was observed at Deras of second rotation indicating that G. philipii isolate are genotypically distinct individuals and of different clones, eventhough they share same morphological characters. Genetic diversity found in G. philippii suggested that sexual reproduction of basidiocarps in an important factor and is strongly implicated as one of the main modes of dispersal as well as root to root contact.
KERAGAMAN GENETIK UJI PROVENAS DAN UJI KETURUNAN araucaria cunninghamii PADA UMUR 18 BULAN DI BONDOWOSO, JAWA TIMUR Setiadi, Dedi
Jurnal Pemuliaan Tanaman Hutan Vol 4, No 1 (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.2010.4.1.1-8

Abstract

A Progeny test of Araucaria cunninghamii seedling seed orchard was established comprising of eighty open–pollinated families collected from six seed source (Fak-fak, Sorong, Serui, Wamena, Manokwari and Queensland). The trial was designed as a Randomized Complete Block Design (RCBD) which comprised 80 seedlots, 4 tree- line plots with 4 replicates. At 18 months of age there were significant differences among seed sources for tree height and stem diameter. The survival rate of all seed sources was high (96.7 – 100%). Differences between families within seed source were significant both for height and diameter growth. Heritability estimates for height were moderate (h2f = 0.42, h2i = 0.19) and also for diameter (h2f = 0.57, h2i = 0.30). Genetic correlation between height and diameter was string (rg = 0.80).

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