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JURNAL PEMULIAAN TANAMAN HUTAN

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Published by Badan Penelitian dan Penegembangan Kehutanan

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Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

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Articles 8 Documents

Search results for , issue "Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan" : 8 Documents clear

PERCEPATAN KEMAMPUAN BERAKAR DAN PERKEMBANGAN AKAR STEK PUCUK Shorea platyclados MELALUI APLIKASI ZAT PENGATUR TUMBUH IBA Suryo Hardiwinoto; Rixa Riyanti; Widiyatno Widiyatno; Adriana Adriana; Widaryanti Wahyu Winarni; Handojo Hadi Nurjanto; Eko Priyo
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Shorea platyclados is one of fast-growing Dipterocarp species for enrichment planting in Logged-Over Area (LOA) of tropical rain forests. One of the constrain to supply the seedling for support enrichment planting is the irregular flowering of S. platyclados. Moreover, the vegetative propagation is an alternative method to provide the sustainable seedling for enrichment planting in the LOA. This experiment was carried out to assess the effects of IBA concentrations on rooting ability, the primary and secondary root lengths, and the accumulated number of primary and secondary roots on shoot cutting of S. platyclados. The research was conducted in Completly Randomized Design (CRD) with 5 replications. The treatment was five concentrations of IBA, i.e. 0 ppm, 25 ppm, 50 ppm, 75 ppm, and 100 ppm. The data were analyzed using one-way analysis of variance (one way ANOVA) to determine the effect of IBA concentration variation amongst the treatments. The Duncan Multiple Range Test (DMRT) was used for multiple comparisons among the means of treatment at tα=5%, Results showed IBA concentrations significantly affected the rotting ability, the primary and secondary root length of shoot cutting (P < 0.05). On the other hand, the number of primary and secondary roots was not significantly different among treatment (P > 0.05). For rooting ability, 100 ppm of IBA concentration was the highest of all treatments. Meanwhile, 75 ppm of IBA concentration was the best treatment for development of root, i.e. the number of primary roots, the length primary and secondary roots.

PENINGKATAN GENETIK AKTUAL DAN INTERAKSI SUMBER BENIH X LOKASI TERHADAP KADAR 1,8 CINEOLE DAN RENDEMEN MINYAK PADA KAYUPUTIH Noor Khomsah Kartikawati; Prastyono Prastyono; Anto Rimbawanto
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Realized genetic gain of improved seed of cajuput from a breeding program and seed source x site interaction on the oil properties (1,8-cineole and oil yield) was evaluated through the establishment of genetic gain trials in two sites: Gunungkidul dan Ponorogo. Improved seed from two seed sources tested in the trials were first generation seedling seed orchard (SSO-1) and selected superior seed trees in the SSO-1 (SSO-2). As a control, unimproved seed from three seed sources: natural stands in Maluku (ST-1), plantation in Ponorogo (ST-2) and Gundih (ST-3) were also planted together in the trials. The genetic gain trial was established using a randomised complete clock design which consists of 5 tested seed sources, 20 treeplot, 8 replicates and spacing of 3 x 3m. The results of study showed that the realized genetic gain for the content of 1,8-cineole from SSO-2 over the controls ranged from 13.78% to 17.52% and the genetic gain of the oil yield ranged from 15.76% to 26,43%. Meanwhile the realized genetic gain for SSO-1 ranged from 2.07% to 5.42% and 10.15% to 20.30% for the content of 1,8-cineole and oil yield,respectively. The non-significance of seed source x site interaction indicates that all improved seed from the first-generation seedling seed orchard of cajuput in Paliyan are most likely to be adaptable to the varies site in Gunungkidul and Ponorogo while maintaining the high productivity in oil properties.

PENGGUNAAN RHIZOBIUM DAN MIKORIZA UNTUK PERTUMBUHAN Calliandra calothyrsus UNGGUL Rina Laksmi Hendrati; Siti Husna Nurrohmah
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Calliandra calothyrsus, a rhizobium associated legume, fixes atmospheric nitrogen by forming root nodules. Rhizobium availability is crucial for Calliandra’s growth especially on new sites. Additive or synergic effects of rhizobium and mycorrhiza are found to improve seedling quality. Genetically improved Calliandras require optimum silvicultural practices including rhizobium and mycorrhiza application and differences among families need to be observed. This followed with combination treatment of 5g rhizobium and different mycorrhiza level at 0, 5 and 10g applied to 5 families in 30 x 30 cm polybag. Assessments were for leaf number, height, diameter at 1, 4 and 8 weeks and number of root nodules at 4 and 8 weeks after application. Results show that rhizobium application has no significant effects although it enhances grow, while mycorrhiza application improve leaf number after 14 weeks. Second experiment for 3.5 month seedlings, indicates interaction on family-mycorrhiza level to seedling height and root nodules. Very positive correlations show that more root nodules improved leaf number (r=0.41), height (r=0.3) and diameter (r=0.45) up to planting time. Quite cheap rhizobium and mycorrhiza application is therefore beneficial to optimize the growth of genetically improved C. calothyrsus, although genotype differences may eXist.

KARAKTERISTIK SERAT KAYU HIBRID Acacia auriculiformis x Acacia mangium SEBAGAI BAHAN BAKU PULP Sri Sunarti; Harry Praptoyo; Arif Nirsatmanto
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Acacia auriculiformis x Acacia mangium hybrid (Aa x Am) is a promising Acacia hybrid for pulp. Wood properties of the hybrid have been reported for their physical and chemical characteristics, but the fiber characteristics have not been investigated. This study was aimed to investigate the fiber characteristics of the hybrid. Wood samples were collected from three years old of Aa x Am hybrid trees planted in a hybrid seed orchard. For comparison, wood sample from other three species: A. mangium x A. auriculiformis hybrid (Am x Aa), A. mangium and A. auriculformis on the same age, planted in the orchard were also collected. The wood sample was prepared from a slice which was put into a bottle containing a combination of acetic acid and hydrogen peroxide (perhidrol) in 1:20 (v/v) for observing fiber characteristics. The results showed that in general the fiber characteristics of Aa x Am hybrid were comparable to those of three comparison species. The average fiber dimensions were intermediate between the two parents: 0.85 mm, 16.09 μm, 12.56 μm and 1.7 μm for fiber length, fiber diameter, fiber lumen width and fiber wall thickness, respectively. The derived values were variable to three comparison species, with the Muhlstep ratio and flexibility coefficient were slightly lower than those observed in Am x Aa hybrid. Based on the level of fiber quality for pulp, the Aa x Am hybrid was classified as level II, the same level as A. mangium and hybrid Am x Aa.

EVALUASI UJI KETURUNAN PULAI DARAT (Alstonia angustiloba Miq.) UMUR TIGA TAHUN DI WONOGIRI, JAWA TENGAH Mashudi Mashudi; Mudji Susanto
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Evaluation were observed at three years old of Alstonia angustiloba Miq. progeny trial at Wonogiri, Central Java. The experimental design of the trial was laid out in Randomized Complete Block Design consisting of 43 families, 6 replications, 4 tree-plot and spacing of 3 x 3 meters. This study was aimed to observe the adaptability, the growth variation (height, stem diameter and stem volume) and the estimates of heritability, genetic correlation and phenotipic correlation among the three growth traits.The results of study showed that the adaptability was not significantly different between populations and families with survival rate at 80.04 ± 25.34%. Analysis of variance showed that population and families were significantly different for height, stem diameter and stem volume. Pendopo, Carita, and Lubuk Linggau were the best populations in height growth (3.12 – 3.4 m) and stem diameter (4.07 – 4.65 cm). Pendopo population was the best population in stem volume (0.0047 m3). The estimates of individual heritabilities were around 0.32; 0.20, and 0.13 for height, stem diameter and stem volume, respectively. While the family heritabilities were around 0.59; 0.49, and 0.42 for height, stem diameter and stem volume, respectively. Genetic and phenotipic correlation among the three traits were positive and strong at 0.96 and 0.86 for height and diameter, 0.92 and 0.80 for height and stem volume then 0.89 and 0.95 for diameter and stem volume.

PENGARUH INOKULASI MIKORIZA ARBUSKULAR TERHADAP PERTUMBUHAN BIBIIT DAN INTENSITAS PENYAKIT BERCAK DAUN CENGKEH Ayu Octavia Tanjung Putri; Bambang Hadisutrisno; Arif Wibowo
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

The potential of arbuscular mycorrhiza fungi on the growth of clove seedling and leaf spot intensity. This researches aims to assess the ability of arbuscular mycorrhiza (AM) fungi in growth and suppress the intensity of leaf spot disease on clove seeds. The experiment was arraged in completely randomized design (CRD) 2 x 2 factorial. The treatments examined were: without mycorrhiza and compost (M0P0), without mycorrhiza and with compost (M0P1), with mycorrhiza and without compost (M1P0), and with mycorrhiza and compost (M1P1). The observed variables were the clove seedlings height, leaf numbers, symptom and intensity of leaf spot disease, and detection of salicylic acid (SA) with thin layer chromatography (TLC). The result showed that aplication of AM Fungi (M1) to clove seedlings support clove growth and dicreased intensity of leaf spot disease, but there was no interaction between mycorrhiza and composting in all observation variables. Salicylic acid contained in all treatment were tested.

STUDI KERAGAMAN GENETIK Diospyros rumphii Bakh DI SULAWESI UTARA BERDASARKAN PENANDA ISOENZIM Julianus Kinho; Mohammad Na'iem; Sapto Indrioko
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Diospyros rumphii Bakh. is one of tropical commerciall wood species grouped in ebony. Ebony is the name of some species of commercial timber from genus of Diospyros (Ebenaceae). Seven species of them are commercial wood, which in the trade is known as ebony namely; D.celebica, D.rumphii, D.pilosanthera, D.lolin, D.ebenum, D.ferrea and D.macrophylla. Two of seven species ebony have the highest economic values namely; D.celebica and D.rumphii. Nowadays, the population D. rumphii in the nature are decreases due to over harvesting in the past. This study aims to determine genetic diversity of D. rumphii within populations, between populations and its relationship. The samples of D. rumphii in this study from four populations in North Sulawesi i.e Bitung, Talise, Talaud and Bolaang Mongondow. Genetic diversity was detected by isoenzym markers with seven enzyme i.e Glutamate oxaloacetate transmirase (GOT), Shikimate dehydrogenase (SHD), Esterase (EST), Acid phoshatase (ACP), Diaphorase (DIA), 6-Phosphogluconate dehydrogenase (6PG) and Glutamate dehydrogenase (GDH). The results showed that there are three enzym was detected polymorphisme i.e EST, GOT and GDH. Genetic diversity generated by three enzyme systems who are controlled by 5 loci and 15 alleles. The average percentage of polymorphic loci was100%. The number of total genetic diversity is 0.64,which are distributed within population 0.59 (91.24%) and between population 0.05(8.76%). Cluster analysis using Unweighted Pair Group Method with Aritmatic Means (UPGMA) based on Nei standard genetic distance showed three clusters:Bitung and Bolaang Mongondow, Talise, and Talaud.

KERAGAMANAN GENETIK DAN PERMUDAAN ALAM PUSPA (Schima wallichii (DC.) Korth.) DI TAMAN NASIONAL GUNUNG MERAPI PASCA ERUPSI MERAPI 2010 Bangun Baramantya; Sapto Indrioko; Lies Rahayu Wijayanti Faida; Yayan Hadiyan
Jurnal Pemuliaan Tanaman Hutan Vol 10, No 2 (2016): Jurnal Pemuliaan Tanaman Hutan
Publisher : Center for Forest Biotechnology and Tree Improvement (CFBTI)

Schima wallichii (DC.) Korth. (puspa) is a native vegetation of Gunung Merapi National Park (GMNP). This species has an important function for soil and water conservation in GMNP area, especially in the area with high slope. Puspa is also one of prioritised species planted in the forest ecosystem restoration project of GMNP after 2010 volcano eruption. Information on genetic diversity and natural regeneration potential of each puspa stand groups is then very essential for the success of forest ecosystem restoration in GMNP. Genetic diversity parameters of puspa is assessed by isozyme analysis, while its natural regeneration is evaluated by vegetation analysis. Selection of samples on stand groups of puspa for genetic diversity and natural regeneration analysis is based on levels of vegetation damage (low and moderate) and the planting plots of ecosystem restoration area. The results showed that the stands with low damage level located at Gunung Malang and Mriyan have higher genetic diversity than those with moderate damage level (Balerante and Tlogolele). Stand with the highest genetic diversity is Gunung Malang, with the mean observed heterozigosities (Ho) of 0.284 and minimum fixation index value (FIS) of 0.0508. Stand in the Ecosystem Restoration Demonstration Plot has the lowest level of genetic diversity (Ho = 0.1936; FIS = 0.1127). Regarding natural regeneration potential, the stand group of Gunung Malang is the highest.

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