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All Journal Indonesian Journal of Forestry Research Jurnal Penelitian Hutan Tanaman NUSANTARA : Jurnal Ilmu Pengetahuan Sosial Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Indonesian Journal of Forestry Research
Budi Leksono
Balai Besar Penelitian Bioteknologi dan Pemuliaan Tanaman Hutan Jl. Palagan Tentara Pelajar Km.15, Purwobinangun, Pakem, Sleman, Yogyakarta, Indonesia Kode Pos 55582 Telp. (0274) 895954, Fax. (0274) 896080
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science

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AN OPTIMUM DESIGN FOR SEEDLING SEED ORCHARDS TO MAXIMIZE GENETIC GAIN: AN INVESTIGATION ON SEEDLING SEED ORCHARDS OF Eucalyptus pellita F. Muell Leksono, Budi; Kurinobu, Susumu; Ide, Yuji
Indonesian Journal of Forestry Research Vol 6, No 2 (2009): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

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Abstract

BREEDING ZONES BASED ON GENOTYPE-ENVIRONMENT INTERACTION IN SEEDLING SEED ORCHARDS OF Eucalyptus pellita IN INDONESIA Leksono, Budi
Indonesian Journal of Forestry Research Vol 6, No 1 (2009): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

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Abstract

The magnitude  of the genotype-environment interaction (GEI) in seven six years  old seedling  seed orchards  of Eucalyptus pellita established  at three locations  in Indonesia  was examined  by analyzing height  and diameter.  The seed orchard  at each location  consists of 121 families  from three  provenances  of Papua  New  Guinea.  The pooled  sum of squares derived from analysis  of variance  of growth  of the three provenances  was used to estimate genetic  parameters.  These parameters  were  then used to calculate  genetic  gain as a result of both direct and indirect  selections.  The GEI across the three locations  was very  strong, while the results of pair-wise site analysis  varied between the pairs of locations.  The genetic correlations for pairs of locations  were moderately high between South Sumatra  and Riau;0.68 for dbh and 0.85 for height,  but were lower  between South Kalimantan and the other locations  (0.32 to 0.56). The gains resulting  from direct  selection  were  apparently greater than those resulting  from indirect  selection.  The genetic  gains achieved  in South Sumatra and Riau  would  decrease by 24% as a result  of transfer  to other  sites, while  transfer  from South Kalimantan to Sumatra  Island (and vice versa) would  reduce in the genetic  gain by 60%. Hence, the breeding  population in South Kalimantan should be developed separately from those in South Sumatra  and Riau
EVALUASI AWAL KOMBINASI UJI SPESIES-PROVENAN JENIS-JENIS SHOREA PENGHASIL TENGKAWANG DI GUNUNG DAHU, BOGOR, JAWA BARAT Setiadi, Dedi; Leksono, Budi
Jurnal Penelitian Hutan Tanaman Vol 11, No 3 (2014): Jurnal Penelitian Hutan Tanaman
Publisher : Pusat Penelitian dan Pengembangan Hutan

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Abstract

ABSTRACT Combination of species-provenance test of tengkawang-producing Shorea species was established in 2011 in Gunung Dahu Research Station (West Java). Evaluation was conducted periodically every each six months for 18 months. The genetic materials used S. macrophylla, S. gybertsiana, S. stenoptera, S. pinanga derived   from 4 provenances (Gunung Bunga-West Kalimantan, Sungai Runtin-West Kalimantan, Bukit Baka-Central Kalimantan, and Haurbentes-West Java). The experiments were arranged in a Randomized Complete Blok Design (RCBD) with 11 plots, 4 replicated, 25 trees per plot (5 x 5 trees) and spacing of 5 x 5 meters. The traits observed were survival percentage and height at the age of 6, 12 and 18 months. The analysis showed that the survival percentage was not significantly different, while the growth height showed significant differences. Species of Shorea (S. macrophylla, S. stenoptera, and S. pinanga) from Haurbentes (West Java) land race had the best performance in growth until the age at 18 months.ABSTRAKKombinasi uji spesies-provenan jenis-jenis shorea penghasil tengkawang dibangun pada tahun 2011 di Stasiun Penelitian Meranti di Gunung Dahu, Bogor, Jawa Barat. Evaluasi dilakukan secara periodik setiap enam bulan selama 18 bulan untuk mengetahui kemampuan adaptasi dari jenis dan provenan yang diuji. Materi genetik yang digunakan adalah jenis-jenis shorea penghasil tengkawang (S. macrophylla, S. gybertsiana, S. stenoptera, S. pinanga) yang berasal dari 4 provenan (Gunung Bunga-Kalimantan Barat, Sungai Runtin-Kalimantan Barat, Bukit Baka-Kalimantan Tengah,  dan  Haurbentes-Jawa  Barat).  Penelitian  menggunakan  Rancangan Acak  Lengkap Berblok (RCBD) dengan 11 plot, 4 ulangan, 25 pohon per plot (5 x 5 pohon) dan jarak tanam 5 x 5 meter. Sifat yang diukur adalah persen hidup dan tinggi tanaman pada umur 6,12 dan 18 bulan. Hasil analisis menunjukkan bahwa persen hidup tidak berbeda nyata, dan pertumbuhan tinggi tanaman menunjukkan perbedaan yang nyata. Jenis-jenis shorea pengasil tengkawang (S. macrophylla, S. pinanga dan S. stenoptera) dari ras lahan Haurbentes (Jawa Barat) menunjukkan pertumbuhan terbaik sampai dengan umur 18 bulan. 
AN OPTIMUM DESIGN FOR SEEDLING SEED ORCHARDS TO MAXIMIZE GENETIC GAIN: AN INVESTIGATION ON SEEDLING SEED ORCHARDS OF Eucalyptus pellita F. Muell Leksono, Budi; Kurinobu, Susumu; Ide, Yuji
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.2009.6.2.85-95

Abstract

BREEDING ZONES BASED ON GENOTYPE-ENVIRONMENT INTERACTION IN SEEDLING SEED ORCHARDS OF Eucalyptus pellita IN INDONESIA Leksono, Budi
Indonesian Journal of Forestry Research Vol 6, No 1 (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.2009.6.1.74-84

Abstract

The magnitude  of the genotype-environment interaction (GEI) in seven six years  old seedling  seed orchards  of Eucalyptus pellita established  at three locations  in Indonesia  was examined  by analyzing height  and diameter.  The seed orchard  at each location  consists of 121 families  from three  provenances  of Papua  New  Guinea.  The pooled  sum of squares derived from analysis  of variance  of growth  of the three provenances  was used to estimate genetic  parameters.  These parameters  were  then used to calculate  genetic  gain as a result of both direct and indirect  selections.  The GEI across the three locations  was very  strong, while the results of pair-wise site analysis  varied between the pairs of locations.  The genetic correlations for pairs of locations  were moderately high between South Sumatra  and Riau;0.68 for dbh and 0.85 for height,  but were lower  between South Kalimantan and the other locations  (0.32 to 0.56). The gains resulting  from direct  selection  were  apparently greater than those resulting  from indirect  selection.  The genetic  gains achieved  in South Sumatra and Riau  would  decrease by 24% as a result  of transfer  to other  sites, while  transfer  from South Kalimantan to Sumatra  Island (and vice versa) would  reduce in the genetic  gain by 60%. Hence, the breeding  population in South Kalimantan should be developed separately from those in South Sumatra  and Riau
VARIATION IN BIOFUEL POTENTIAL OF TWELVE CALOPYLLUM INOPHYLLUM POPULATIONS IN INDONESIA Leksono, Budi; Hendrati, Rina Laksmi; Windyarini, Eritrina; Hasnah, Trimaria
Indonesian Journal of Forestry Research Vol 1, No 2 (2014): 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.2014.1.2.127-138

Abstract

Global energy crisis raises biofuel prices significantly. It has driven the world to enhance  environmentally-friendly renewable-energy (biofuel) production. Calophyllum inophyllum (Nyamplung) is one of the potential biofuel sources, extracted from its seeds which can be harvested up to 50 years. Technical-practices of biofuel production for nyamplung seeds have been developed at industrial scale by cooperations in Cilacap (Java) and Energy Self-Sufficient Villages (Desa Mandiri Energi) in Banyuwangi, Purworejo, Kebumen, Ujung Kulon (Java) and Selayar (outside Java). However, there is only a limited-information available on biofuel productivity and quality from nyamplung  populations. This paper studies the biofuel-potential-variations among 12 populations in Indonesia (6 from Java, 6 outside Java) in terms of genetically-improved seed-sources. The oil was extracted using a combination of vertical hot press  (VHP) and screw press expeller (SPE) followed by degumming to make refined oil, and esterification-transesterification to turn it into biodiesel. The result shows great variation of biofuel content among the population. Oil production percentage varies from 37-48,5% (VHP) and 50-58% (SPE) crude oil, 36-48% (VHP) and 40-53% (SPE) refined oil, and 17-33% (SPE) for biodiesel. The highest variation after degumming is due to high seed resin content. DNA analysis shows genetic-variations among populations from intermediate (Java) to high (ouside Java) and intermediate within populations. Information of biofuel content, DNA analysis and environmental conditions for each population are considered to be important factors to establish genetically-improved seed-sources.
VARIATION IN BIOFUEL POTENTIAL OF TWELVE CALOPYLLUM INOPHYLLUM POPULATIONS IN INDONESIA Leksono, Budi; Hendrati, Rina Laksmi; Windyarini, Eritrina; Hasnah, Trimaria
Indonesian Journal of Forestry Research Vol. 1 No. 2 (2014): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2014.1.2.127-138

Abstract

The global energy crisis has raises demand for biofuel prices. It has driven the world to enhance environmentally-friendly renewable-energy (biofuel) production. Oil from the seeds of Calophyllum inophyllum (nyamplung) which can be harvested up to 50 years, is one of such potential biofuel source. Methods for biofuel production from nyamplung seeds have been developed at an industrial scale by cooperative in Cilacap (Java) and Energy Self-Sufficient Villages (Desa Mandiri Energi) in Banyuwangi, Purworejo, Kebumen, Ujung Kulon (Java) and Selayar (South Sulawesi). However, there is only a limited-information available on biofuel potential, in term of productivity and quality, from nyamplung populations. This paper reports the variations in biofuel potential among 12 populations in Indonesia (6 from Java, 6 outside Java). The oil was extracted using a combination of vertical hot press (VHP) and screw press expeller (SPE) methods, followed by degumming to make refined oil, and esterification-transesterification to turn it into biodiesel. The result show great variation of biofuel content among the population. Oil production percentage varies from 37-48.5% (VHP) and 50-58% (SPE) crude oil, 36-48% (VHP) and 40-53% (SPE) refined oil, and 1733% (SPE) for biodiesel. Seed resin content is responsible for most of the variation after degumming. DNA analysis shows genetic variation among populations ranges from intermediate within Java to high ouside Java and is intermediate within populations. Information about biofuel content and potential of populations and genetic variation between and within population are important factors for establishment of geneticallyimproved seed-sources for biofuel production from nyamplung.
Aplikasi Kompos Bungkil Nyamplung Terhadap Pertumbuhan dan Serapan Kalium pada Jagung (Zea mays) Hasnah, Tri Maria; Leksono, Budi; Windyarini, Eritrina
Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) 2018: Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Limbah bungkil nyamplung (Calophyluum inophyllum L.) yang telah diolah menjadi kompos pada penelitian sebelumnya, perlu diaplikasikan pada tanaman pangan agar dapat dimanfaatkan secara masal, selain sebagai salah satu solusi untuk mengurangi pencemaran lingkungan. Hasil penelitian sebelumnya menunjukkan bahwa kompos bungkil nyamplung memiliki DHL (Daya Hantar Listrik), Nisbah C/N, kadar N, P, dan K total yang memenuhi SNI No. 19-7030-2004 tentang Spesifikasi Kompos dari Sampah Organik Domestik. Hal ini menunjukkan bahwa limbah bungkil nyamplung untuk bahan kompos tidak bersifat toksik atau meracun pada tanaman, yang diindikasikan dengan nilai DHL bungkil nyamplung di bawah 2 dS/m. Untuk mengetahui respon tanaman terhadap kompos tersebut, penelitian dilakukan dengan mengaplikasikan kompos bungkil nyamplung dan top soil inceptisol dengan perbandingan 1:2 pada tanaman jagung. Benih jagung yang ditanam adalah dari jenis jagung manis (Zea mays L). Perlakuan penelitian yang diterapkan adalah empat macam kompos dari bungkil nyamplung dengan starter mikroba yang berbeda, yaitu Isi Rumen Sapi, Prouponic GB#1, EM4, dan PrimadecC-15, dengan pembanding dua jenis kontrol, yaitu tanah (top soil tanpa kompos) dan kompos yang biasa digunakan di pasaran. Percobaan dilakukan dengan menggunakan Rancangan Acak Lengkap (RAL) dengan 15 tanaman jagung untuk setiap perlakuan. Analisis tanah dilakukan sebelum dan setelah aplikasi kompos bungkil nyamplung pada media tanam. Pengamatan dilakukan terhadap karakter dan parameter tanaman, yaitu: 1) tinggi dan jumlah daun tanaman setiap satu minggu, 2) berat basah dan berat kering trubus beserta akar tanaman pada saat masa vegetatif maksimum (2 bulan masa tanam), dan 3) Serapan hara K dan Ktotal pada tanaman. Hasil penelitian menunjukkan bahwa pemberian kompos bungkil nyamplung pada media tanam dapat meningkatkan pH, bahan organik, KPK dan Ktotal tanah yang lebih baik dibandingkan dengan tanpa pemberian kompos bungkil nyamplung maupun dengan pemberian kompos yang ada di pasaran. Starter yang berbeda tidak menunjukan perbedaan peningkatan pH, KPK dan Ktotal tanah, perbedaan hanya pada kandungan bahan organik. Starter EM4 menunjukan kandungan bahan organik yang paling melimpah pada media tanam. Hasil yang sama ditemukan untuk kadar kalium dan serapan hara kalium pada bagian atas (trubus) maupun bawah (akar) tanaman. Pertumbuhan tanaman jagung (tinggi, jumlah daun, berat basah dan berat kering, Ktotal tanaman, serta serapan K oleh tanaman) menunjukan nilai yang lebih baik dibandingkan dengan tanpa penambahan kompos maupun dengan penambahan kompos yang ada di pasaran. Perbedaan starter pada pembuatan kompos tidak berpengaruh terhadap pertumbuhan tinggi tanaman jagung, jumlah daun, dan serapan hara K hanya berbeda pada Ktotal tanaman. Kadar Ktotal tanaman terbanyak diperoleh pada perlakuan penambahan starter EM4 dan isi rumen sapi yang mudah diperoleh oleh masyarakt pada prosespembuatan kompos. Kadar kalium total pada tanaman jagung dihasilkan dari kompos dengan menggunakan starter EM4 dan Isi Rumen Sapi yang mudah diperoleh masyarakat.
DINAMIKA MATA PENCAHARIAN SUKU TALANG MAMAK DI DESA SUNGAI EKOK KABUPATEN INDRAGIRI HULU leksono, Budi; Widodo, Teguh
NUSANTARA : Jurnal Ilmu Pengetahuan Sosial Vol 12, No 4 (2025): Nusantara : Jurnal Ilmu Pengetahuan Sosial
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jips.v12i4.2025.1351-1357

Abstract

Pembukaan lahan besar-besaran telah mengubah pola kehidupan Suku Talang Mamak di Desa Sungai Ekok dengan menghilangkan sumber penghidupan tradisional mereka. Berdasarkan kondisi ini, penelitian dilakukan dengan bertujuan untuk memahami faktor-faktor yang memengaruhi perubahan mata pencaharian Suku Talang Mamak di Desa Sungai Ekok. Selain itu, penelitian ini juga akan menelusuri bagaimana masyarakat adat tersebut beradaptasi dengan pergeseran mata pencaharian mereka. Melalui penelitian kualitatif dengan metode Purposive Sampling, ditemukan bahwa pergeseran mata pencaharian mereka dipengaruhi oleh beberapa faktor: keberhasilan desa tetangga dalam berkebun sawit, menurunnya hasil hutan, dan jatuhnya harga karet. Hal ini mendorong masyarakat Talang Mamak beralih profesi petani menjadi sawit. Studi ini mengungkapkan tiga pemicu utama perubahan: degradasi hutan, tekanan ekonomi, dan kisah sukses perkebunan sawit, dimana dalam menghadapi perubahan ini, masyarakat Talang Mamak menunjukkan kemampuan beradaptasi yang komprehensif dengan memanfaatkan lima modal aset yang mereka miliki.
Co-Authors Dedi Setiadi Eritrina Windyarini Rina Laksmi Hendrati Susumu Kurinobu Teguh Widodo Tri Maria Hasnah, Tri Maria Trimaria Hasnah Yuji Ide