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JURNAL PEMULIAAN TANAMAN HUTAN
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Articles 10 Documents
Search results for , issue " Vol 7, No 1 (2013): Jurnal Pemuliaan Tanaman Hutan" : 10 Documents clear
Evaluasi awal produksi getah uji keturunan pinus merkusii jungh et de vriese di KPH Banyumas Barat Muslimin, Imam
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): Jurnal Pemuliaan Tanaman Hutan
Publisher : BBPPBPTH

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Abstract

The research aimed to assess genetic variations, estimated heritability and genetic gain in resin yield of P. merkusii. The study was conducted on a half-sib progeny test of 4-year-old P. merkusii resin yield plantation at compartment 37C RPH Lumbir BPKH Samudra KPH Banyumas Barat, using incompletely-block-row-column design by sub-line system (sub-line SSO Jember 1, SSO Sumedang 1, Sulawesi 1, Sulawesi 2 and Jatim 2). Variables measured were average of resin yield from two drillings on the right and left trunk using 10 mm drill bit at 50 cm height from the ground. Genetic variation for resin yield between family was significant different except for sub-line SSO Jember 1. Estimated component variances of family for the sub-line SSO Sumedang 1, Sulawesi 1, Sulawesi 2 dan Jatim 2 were 8.92%; 9.87%; 7.53% and 6.74%, respectively. Individual heritability values were 0.39; 0.42; 0.36; 0.29 and family heritability were 0.59; 0.49; 0.50; 0.48 respectively for the sub-line SSO Sumedang 1, Sulawesi 1, Sulawesi 2 and Jatim 2. Expected genetic gains in resin yield were 14.5%, 10.5% and 6.6% using intensity of selection of 10%, 25% and 50%, respectively. Sub-line Sulawesi 1 had the highest estimated genetic gain and sub-line Jatim 2 was the lowest
Inteksi famili x lokasi pada uji keturunan generasi kedua acacia mangium di sumatera dan kalimantan Setyaji, Teguh
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): Jurnal Pemuliaan Tanaman Hutan
Publisher : BBPPBPTH

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Abstract

The study was conducted to investigate the existence of  family × site  interactions observed in  second generation  open-pollinated progeny test  of  Acacia mangium in two locations: Lipatkain, Riau (Sumatra) and  Kenangan, East Kalimantan.  The progeny tests were  established   using  51-55 families  originated  from Oriomo River Papua New Guinea  provenance. There were 31common families tested at the both sites. Growth on both sites was significantly different between families. The average  height  and diameter was 15,9 m and  13,3 cm  respectively at  Kenangan, and  17,0 m and  16,6 cm  respectively at  Lipatkain. Family × site interactions  were  highly significant for height and diameter. The ratio of variance component of interaction to the family variance component (s2fl / s2f ) for  diameter (1,6) and height (1,2) were largerr than  Shelbourne’s  critical value (0,5),    indicating the low   genotypic stability at family level for the both traits  where the  diameter was  more sensitive than height to changing  site conditions. Genetic correlations between the same trait at different sites were low:  0.45 for height  and 0.38 for diameter. The greatest genetic gain and relative efficiency of family selection were generally expected from selecting and planting families in the same site.
Keragaman genetik Gonystylus bancanus (miq.) kurz berdasarkan penanda RAPD (Random Amplified polymorphic DNA) Widyatmoko, Antonius WPBC; Aprianto, nfn
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): Jurnal Pemuliaan Tanaman Hutan
Publisher : BBPPBPTH

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Abstract

Gonystylus bancanus (Ramin) is one of the most valuable timber species in peat swamp forest. Over harvesting and illegal logging had decreased the potential of the species. Thus, conservation of the species becomes a very crucial activity to be carried out. In order to conserve efficient and effectively, it is important to gather information of genetic diversity and its distribution, and also genetic relationship among populations. In this activity, 86 loci from 20 RAPD primers were used for analyzing genetic diversity of 10 populations of ramin distributed in Kalimantan and Sumatera. As a result, mean genetic diversity of the 10 populations was 0.329, and mean genetic distance between populations was 0.061. Genetic diversity within population (94%) was higher than between populations (6%). Based on cluster analysis, 10 populations of ramin were divided into 2 groups. The first group was consisted of Kuok B, and the remaining 9 populations were clustered into the second group. The second group could be divided into 3 sub-groups, the first sub-group consisted of Mesukuh I, Mesukuh II, Pakilat I, Kanarakan dan Nyaru Menteng, second sub-group was consisted of Pakilat II, and the third sub-group was consisted of PT Diamond, Kuok A and Berbak.
Estimasi parameter genetik dan peran gen pada uji keturunan full sib kayu putih di Gunung Kidul Kartikawati, Noor Khomsah; Naiem, Mohammad; Hardiyanto, Eko Bhakti
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): Jurnal Pemuliaan Tanaman Hutan
Publisher : BBPPBPTH

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Abstract

Controlled pollination technique could be applied to generate gene recombinant from families in progeny test and to estimate genetic parameters. The early step in evaluation of controlled pollination is to estimate general combining ability and specific combining ability. the objectives of this research were to estimate generic parameters on full sib progeny test of melaleuca cajuputi subsp cajuputi cajuput and to identify gene action controlling growth and oil traits. The research was conducted on full sib progeny test at Gunungkidul established in an incomplete block Design with six treeplots and eight replications. Tree height and diameter stem growth were observed at seven years old. Oil yield and cineol content were examined using gas chromatography. Analysis of variance and genetic parameter were calculated for all measured variables. The result showed that individual heretabilities on growth traits (hi2 of stem diameter = 0,34 and tree height = 0,01, respectively) were lower than on oil traiths (hi2 of oil yield =0,6 and cineole = 0,4 respectively). This indicated that oil traits tend to genetically controlled. Analysis of variances on general combining ability (GCA) and Specific Combining Ability (SCA) effects from a serries of 15 sets of 5x5 half-diallel mating experiments showed that all traits (height, diameter, oil and 1,8 cineole yields) were controlled by non-aditive genes. Consequently, controlled pollination of selected plus trees should be carried out until heterosis of improved progenies could be found.
Pengaruh Jfaktor lingkungan terhadap intensitas pembungaan Melaleuca alternifolia Baskorowati, Liliana
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): Jurnal Pemuliaan Tanaman Hutan
Publisher : BBPPBPTH

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Abstract

A detiled knowledge of a species flowering phenology is essential for estimating the reproductive success. Time, frequency and intencity of flowering may vary within species due to genetic differences also modified by abiotic and biotic factors. For M. alternifolia, knowledge of flowering phenology is important to develope an efficient breeding strategy. therefore, this study were undertaken to find out the environmental factors influenced the flowering intensity of M. alternifolia. Flowering phenology assessments were undertaken by counting the number of buds, inflorescences and capsules of individual trees at natural population for 6 years. Where as the assesment of all individual trees at seed orchards were carried out by estimating the number of buds, inflorecences  capsules using 8 point scales during 4 years. the average of maximum and minimum temperatures and the rainfall datas were collected from meteorogical station close to study sites. This study revealed that M. alternifolia was remarkably consistent in its main flowering period both within an outside of its natural range in new south wales. This suggest that floral initiation was associated with day length pattern between sites in this study. Flowering intensity  of M. alternifolia appears to be strongly associated with the total rainfall during the spring flowering season with low temperature as trigger of floral initiation during winter months.
Keragaman genetik Gonystylus bancanus (miq.) kurz berdasarkan penanda RAPD (Random Amplified polymorphic DNA) Widyatmoko, Antonius WPBC; Aprianto, nfn
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): 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.2013.7.1.53-71

Abstract

Gonystylus bancanus (Ramin) is one of the most valuable timber species in peat swamp forest. Over harvesting and illegal logging had decreased the potential of the species. Thus, conservation of the species becomes a very crucial activity to be carried out. In order to conserve efficient and effectively, it is important to gather information of genetic diversity and its distribution, and also genetic relationship among populations. In this activity, 86 loci from 20 RAPD primers were used for analyzing genetic diversity of 10 populations of ramin distributed in Kalimantan and Sumatera. As a result, mean genetic diversity of the 10 populations was 0.329, and mean genetic distance between populations was 0.061. Genetic diversity within population (94%) was higher than between populations (6%). Based on cluster analysis, 10 populations of ramin were divided into 2 groups. The first group was consisted of Kuok B, and the remaining 9 populations were clustered into the second group. The second group could be divided into 3 sub-groups, the first sub-group consisted of Mesukuh I, Mesukuh II, Pakilat I, Kanarakan dan Nyaru Menteng, second sub-group was consisted of Pakilat II, and the third sub-group was consisted of PT Diamond, Kuok A and Berbak.
Estimasi parameter genetik dan peran gen pada uji keturunan full sib kayu putih di Gunung Kidul Kartikawati, Noor Khomsah; Naiem, Mohammad; Hardiyanto, Eko Bhakti
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): 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.2013.7.1.1-13

Abstract

Controlled pollination technique could be applied to generate gene recombinant from families in progeny test and to estimate genetic parameters. The early step in evaluation of controlled pollination is to estimate general combining ability and specific combining ability. the objectives of this research were to estimate generic parameters on full sib progeny test of melaleuca cajuputi subsp cajuputi cajuput and to identify gene action controlling growth and oil traits. The research was conducted on full sib progeny test at Gunungkidul established in an incomplete block Design with six treeplots and eight replications. Tree height and diameter stem growth were observed at seven years old. Oil yield and cineol content were examined using gas chromatography. Analysis of variance and genetic parameter were calculated for all measured variables. The result showed that individual heretabilities on growth traits (hi2 of stem diameter = 0,34 and tree height = 0,01, respectively) were lower than on oil traiths (hi2 of oil yield =0,6 and cineole = 0,4 respectively). This indicated that oil traits tend to genetically controlled. Analysis of variances on general combining ability (GCA) and Specific Combining Ability (SCA) effects from a serries of 15 sets of 5x5 half-diallel mating experiments showed that all traits (height, diameter, oil and 1,8 cineole yields) were controlled by non-aditive genes. Consequently, controlled pollination of selected plus trees should be carried out until heterosis of improved progenies could be found.
Pengaruh Jfaktor lingkungan terhadap intensitas pembungaan Melaleuca alternifolia Baskorowati, Liliana
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): 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.2013.7.1.15-28

Abstract

A detiled knowledge of a species flowering phenology is essential for estimating the reproductive success. Time, frequency and intencity of flowering may vary within species due to genetic differences also modified by abiotic and biotic factors. For M. alternifolia, knowledge of flowering phenology is important to develope an efficient breeding strategy. therefore, this study were undertaken to find out the environmental factors influenced the flowering intensity of M. alternifolia. Flowering phenology assessments were undertaken by counting the number of buds, inflorescences and capsules of individual trees at natural population for 6 years. Where as the assesment of all individual trees at seed orchards were carried out by estimating the number of buds, inflorecences  capsules using 8 point scales during 4 years. the average of maximum and minimum temperatures and the rainfall datas were collected from meteorogical station close to study sites. This study revealed that M. alternifolia was remarkably consistent in its main flowering period both within an outside of its natural range in new south wales. This suggest that floral initiation was associated with day length pattern between sites in this study. Flowering intensity  of M. alternifolia appears to be strongly associated with the total rainfall during the spring flowering season with low temperature as trigger of floral initiation during winter months.
Evaluasi awal produksi getah uji keturunan pinus merkusii jungh et de vriese di KPH Banyumas Barat Muslimin, Imam
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): 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.2013.7.1.29-40

Abstract

The research aimed to assess genetic variations, estimated heritability and genetic gain in resin yield of P. merkusii. The study was conducted on a half-sib progeny test of 4-year-old P. merkusii resin yield plantation at compartment 37C RPH Lumbir BPKH Samudra KPH Banyumas Barat, using incompletely-block-row-column design by sub-line system (sub-line SSO Jember 1, SSO Sumedang 1, Sulawesi 1, Sulawesi 2 and Jatim 2). Variables measured were average of resin yield from two drillings on the right and left trunk using 10 mm drill bit at 50 cm height from the ground. Genetic variation for resin yield between family was significant different except for sub-line SSO Jember 1. Estimated component variances of family for the sub-line SSO Sumedang 1, Sulawesi 1, Sulawesi 2 dan Jatim 2 were 8.92%; 9.87%; 7.53% and 6.74%, respectively. Individual heritability values were 0.39; 0.42; 0.36; 0.29 and family heritability were 0.59; 0.49; 0.50; 0.48 respectively for the sub-line SSO Sumedang 1, Sulawesi 1, Sulawesi 2 and Jatim 2. Expected genetic gains in resin yield were 14.5%, 10.5% and 6.6% using intensity of selection of 10%, 25% and 50%, respectively. Sub-line Sulawesi 1 had the highest estimated genetic gain and sub-line Jatim 2 was the lowest
Inteksi famili x lokasi pada uji keturunan generasi kedua acacia mangium di sumatera dan kalimantan Setyaji, Teguh
Jurnal Pemuliaan Tanaman Hutan Vol 7, No 1 (2013): 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.2013.7.1.41-52

Abstract

The study was conducted to investigate the existence of  family × site  interactions observed in  second generation  open-pollinated progeny test  of  Acacia mangium in two locations: Lipatkain, Riau (Sumatra) and  Kenangan, East Kalimantan.  The progeny tests were  established   using  51-55 families  originated  from Oriomo River Papua New Guinea  provenance. There were 31common families tested at the both sites. Growth on both sites was significantly different between families. The average  height  and diameter was 15,9 m and  13,3 cm  respectively at  Kenangan, and  17,0 m and  16,6 cm  respectively at  Lipatkain. Family × site interactions  were  highly significant for height and diameter. The ratio of variance component of interaction to the family variance component (s2fl / s2f ) for  diameter (1,6) and height (1,2) were largerr than  Shelbourne’s  critical value (0,5),    indicating the low   genotypic stability at family level for the both traits  where the  diameter was  more sensitive than height to changing  site conditions. Genetic correlations between the same trait at different sites were low:  0.45 for height  and 0.38 for diameter. The greatest genetic gain and relative efficiency of family selection were generally expected from selecting and planting families in the same site.

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