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Jurnal Penelitian Hutan Tanaman
Published by Badan Penelitian dan Penegembangan Kehutanan
ISSN : 18296327     EISSN : 24428930     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 16, No 2 (2019): JURNAL PENELITIAN HUTAN TANAMAN" : 5 Documents clear
PEMATAHAN DORMANSI DAN METODE UJI VIABILITAS BENIH LAMTORO (Leucaena leucocephala Lam. de Wit.) (Breaking Dormancy and Testing Method in Determining Seed Viability of Lamtoro (Leucaena leucocephala Lam. De Wit.) Eliya Suita
Jurnal Penelitian Hutan Tanaman Vol 16, No 2 (2019): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (758.279 KB) | DOI: 10.20886/jpht.2019.16.2.59-72

Abstract

ABSTRACTDue to its hard seed coat condition, preliminary treatment is necessary to be applied to Lamtoro seed to improve its germination. The objective of this research was to figure out the best pre-treatment and testing method for improving seed viability and seed vigor of lamtoro. Completely randomized design with factorial patterns was arranged to assist analyzing the observed parameters. Pre-treatments for breaking seed dormancy was conducted including: control (without treatment), soaked seeds in plain water for 24 hours, soaked seeds in boiling water (100°C) and colded for 24 hours, soaked seeds in concentrated H2SO4  for 10 and 20 minutes, soaked seeds in 1% NaOCl for 5 and 10 minutes. The test results showed the best viability of lamtoro seed through sowing in both a greenhouse and laboratory that can increase germination, germination speed, germination rate and germination value was the treatment of soaked seeds in H2SO4 for 20 minutes. The best sowing test method in a greenhouse is obtained from a mixture of sand and soil media (1:1, v/v) covered with sand and in a laboratory with Top of Paper method. ABSTRAKBenih lamtoro mempunyai kulit yang keras sehingga untuk meningkatkan dan mempercepat perkecambahan diperlukan perlakuan pendahuluan agar mempunyai viabilitas dan vigor yang tinggi. Tujuan penelitian ini adalah mendapatkan perlakuan pendahuluan dan metode uji yang sesuai agar dihasilkan tingkat perkecambahan yang tinggi. Penelitian menggunakan rancangan acak lengkap pola faktorial dengan perlakuan: control (tanpa perlakuan), benih direndam air biasa selama 24 jam, benih direndam air panas (suhu 1000C) dan dibiarkan dingin selama 24 jam, benih direndam dalam H2SO4 pekat selama 10 dan 20 menit, serta benih direndam dalam NaOCl 1% selama 5 dan 10 menit. Hasil pengujian menunjukkan pengujian viabilitas benih lamtoro yang terbaik melalui penaburan di rumah kaca maupun di laboratorium yang dapat meningkatkan daya berkecambah, kecepatan berkecambah, laju perkecambahan dan nilai perkecambahan apabila diberikan perlakuan benih direndam dengan H2SO4 selama 20 menit. Metode uji penaburan terbaik di rumah kaca diperoleh dari media campuran pasir dan tanah (1:1, v/v) ditutup pasir dan di laboratorium  dengan metode uji di atas kertas.
KELAYAKAN EKONOMI KEGIATAN PEMULIHAN FUNGSI EKOSISTEM HUTAN LINDUNG GAMBUT SUNGAI BRAM ITAM DI KABUPATEN TANJUNG JABUNG BARAT, PROVINSI JAMBI (Economic Feasibility of Ecosystem Functions Recovery at Sungai Bram Itam Protected Peatland Forest, Tanjung Jabung Barat District, Jambi Province) Dhany Yuniati; Darwo Darwo; Rina Bogi Darmanti
Jurnal Penelitian Hutan Tanaman Vol 16, No 2 (2019): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (689.388 KB) | DOI: 10.20886/jpht.2019.16.2.87-101

Abstract

 ABSTRACTPart areas of Protected Peatland Forest (PPF) Bram Itam River have been converted into agricultural and plantation areas. Consequently, it causes damage to its protected area function. To restore the ecosystem, a study is needed by considering ecological, social, and economic aspects through the establishment of demonstration plot in the Bram Itam River PPF. The aim of the study was to analyze the economic feasibility of three planting patterns on demonstration plots. Economic feasibility parameters evaluated include financial feasibility, continuity in generating income and the ability to meet the needs of farmer’s households lives. The analysis showed that from the aspect of financial feasibility, all cropping patterns deserve to be developed. From the aspect of continuity in generating income, the applied cropping pattern can provide continuous income. However, from the aspect of the ability to meet the household needs of the farmer, the proportion of 25% native species of peatland (275 trees/ha) and 75% areca nut (825 plants/ha) is needed. To increase household income, it is necessary to have an off farm intervention and diversification of peatland management; so that the needs of farmer households are fulfilled and can reduce pressure on peat land in the Bram Itam River PPF area.ABSTRAKSebagian kawasan Hutan Lindung Gambut (HLG) Sungai Bram Itam telah beralih fungsi menjadi areal pertanian dan perkebunan sehingga menyebabkan kerusakan fungsi lindung kawasannya. Untuk memulihkan ekosistemnya diperlukan kajian dengan mempertimbangkan aspek ekologi, sosial, dan ekonomi melalui pembangunan demplot pola-pola penanaman di kawasan HLG Sungai Bram Itam. Tujuan penelitian adalah untuk menganalisis kelayakan ekonomi dari tiga pola penanaman yang dikembangkan pada demplot uji coba. Parameter kelayakan ekonomi yang dievaluasi meliputi kelayakan finansial, kontinyuitas dalam menghasilkan pendapatan, dan kemampuan untuk mencukupi kebutuhan hidup rumah tangga petani. Hasil analisis menunjukan bahwa dari aspek kelayakan finansial, ketiga pola tanam layak untuk dikembangkan. Dari aspek kontinyuitas dalam menghasilkan pendapatan, semua pola tanam yang dikembangkan dapat memberikan pendapatan secara kontinyu. Namun dari aspek kemampuan untuk mencukupi kebutuhan rumah tangga petani hanya pola tanam dengan komposisi 25% tanaman asli gambut (275 pohon/ha) dengan 75% tanaman pinang (825 pohon/ha) yang dapat memenuhi kebutuhan hidup rumah tangga petani. Untuk meningkatkan pendapatan rumah tangga petani, maka diperlukan adanya intervensi off farm dan diversifikasi pengelolaan lahan gambut agar kebutuhan rumah tangga petani tercukupi dan sekaligus dapat mengurangi tekanan terhadap lahan gambut di kawasan HLG Sungai Bram Itam.
DISTRIBUSI TANAMAN DAN NILAI EKONOMI HUTAN KEMASYARAKATAN DI KECAMATAN BATUKLIANG UTARA KABUPATEN LOMBOK TENGAH (Plant Distribution and Economic Value of Community Forests in North Batukliang Sub-district, Central Lombok Regency) Chairil Anwar Siregar; Alfonsus H. Harianja; Dalilah Dalilah; Sidiq Cahyono; Soraya Ulfah
Jurnal Penelitian Hutan Tanaman Vol 16, No 2 (2019): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (841.753 KB) | DOI: 10.20886/jpht.2019.16.2.115-131

Abstract

ABSTRACTCommunity forest (HKm) as one scheme of social forestry has been established in Central Lombok Regency since 1999 and was legalized in 2010. The HKm covered an area of 1,809.5 ha and has formed an agroforestry pattern since it was first established 13 years ago. However, the plant distribution and economic value of production area remain unknown. Therefore this research is designed to record plant composition and calculate the economics value of HKm in the research area. Survey method using analysis of vegetation was carried out to measure the plant composition. Sampling intensity was 0.01% or 1.81 ha with a total number of sample plots were 45. Survey was also used to calculate the economic value, with sampling intensity of 1% or in total 32 households. The results showed that the plant composition consists of mature trees (2.02%), young trees (4.12%), sapling (26.44%) and seedling (67.41%). The plant density was 11,462 ind/ha and dominated by Coffea sp., Musa sp., Durio zibethinus, Theobroma cacaoa and Arthocarpus heterophyllus with proportion of 24.08%; 13.70%; 9.25%; 7.48% and 5.30%, respectively. Total economic value in the average was Rp 6,366,484/household/year or Rp 530,540/household/month. There was a downward trend in HKm production due to increased vegetation coverage. Exchange rate of HKm commodities can be improved by applying supporting strategic programs in HKm developments.   ABSTRAKPembangunan Hutan Kemasyarakatan (HKm) di Kabupaten Lombok Tengah telah dimulai sejak tahun 1999 dalam bentuk ijin sementara pengelolaan HKm dan kemudian diterbitkan Ijin Usaha Pengelolaan Hutan Kemasyarakatan (IUP-HKm) pada tahun 2010 dengan luas areal 1.809,5 ha. Kawasan HKm dalam waktu tiga belas tahun (2000-2013) telah  membentuk formasi hutan pola agroforestri. Namun demikian, distribusi tanaman dan nilai produksi kawasan belum diketahui. Untuk itu dilaksanakan penelitian guna mengetahui komposisi tanaman dan nilai produksinya. Penelitian dilaksanakan menggunakan metode survei dengan melakukan analisa vegetasi untuk mengetahui distribusi tanaman dengan intensitas sampling sebesar 0,01% atau 1,81 ha dengan jumlah plot sebanyak 45 unit. Untuk mengetahui nilai ekonomi dari produksi tanaman dalam HKm, dilaksanakan wawancara terhadap petani penggarap HKm dengan intensitas sampling 1% atau sebanyak 32 petani. Hasil penelitian menunjukkan bahwa komposisi tanaman yang ada dalam areal HKm terdiri dari strata pohon sebesar 2,02%, tiang 4,12%, pancang 26,44% dan semai 67,4%. Kerapatan tanaman 11.462 btg/ ha yang didominasi oleh tanaman kopi (Coffea sp.), pisang (Musa sp.), durian (Durio zibethinus), coklat (Theobroma cacao) dan nangka (Arthocarpus heterophyllus) dengan proporsi berturut-turut 24,08%; 13,70%; 9,25%; 7,48% dan 5,30%. Nilai ekonomi yang diperoleh rumah tangga petani rata-rata sebesar Rp 6.366.484/tahun atau Rp 530.540/bulan. Terdapat kecenderungan penurunan nilai produksi HKm akibat semakin meningkatnya penutupan lahan. Untuk meningkatkan nilai tukar komoditas HKm, diperlukan program strategis yang dapat mendorong pembangunan HKm.
POTENSI DAN HABITAT TEMPAT TUMBUH KETAK (Lygodium circinnatum (Burn. F.) Swartz) DI LOMBOK (Potency and Growth Habitat of Lygodium circinnatum (Burn. F.) Swartz) in Lombok) I Wayan Widhana Susila; Ogi Setiawan; M Hidayatullah
Jurnal Penelitian Hutan Tanaman Vol 16, No 2 (2019): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jpht.2019.16.2.103-114

Abstract

ABSTRACTKetak (Ligodium circinnatum) is a superior Non-Timber Forest Product in West Nusa Tenggara. The research aimed to obtain data on potential, distribution, and growth habitat of ketak in Lombok Island. The study was conducted by purposive sampling inventory; the first line took randomly and the next line took systematically. Ketak was found in the Malimbu and Pusuk Forest (West Rinjani Protected Forest Management Unit (PFMU)), while in the East Rinjani PFMU was found in Lang-lang, Mentareng, and Obel-Obel. The potency for ketak in Lombok is relatively low i.e. 443 clumps/ha, 5.2 tendrils/clump and harvested aged 3 tendrils/clump. Any trees be able as climbing tree. Ketak grows well at altitude of less than 400 m above sea level, sloping to steep slopes, climate types C to E, rainfall 935 to 1,511 mm/year, temperatures 24-320C, humidity 50-88%, and light intensity 120 to 3,872 luxs. Ketak growths in soil characteristic as follow:granular structure, sandy texture, slightly acid to neutral pH, good absorption rate, and growth capability under low nutrient level.                                                     ABSTRAKKetak (Ligodium circinnatum) merupakan jenis Hasil Hutan Bukan Kayu unggulan di Nusa Tenggara Barat. Saat ini terjadi penurunan suplai bahan baku untuk kerajinan ketak di Lombok. Penelitian bertujuan untuk memperoleh informasi potensi, sebaran, dan tempat tumbuh ketak di Pulau Lombok. Penelitian dilakukan dengan cara inventarisasi dengan metode sampling secara purposif dan peletakan jalur (transek) pertama secara acak, kemudian jalur berikutnya secara sistematis. Rumput ketak ditemukan di Kawasan Hutan Malimbu dan Pusuk (Kesatuan Pemangkuan Hutan Lindung (KPHL) Rinjani Barat), sedangkan di KPHL Rinjani Timur ada di Kawasan Hutan Lang-lang, Mentareng, dan Obel-Obel. Potensi ketak di Lombok relatif rendah dengan jumlah rumpun 443 rumpun/ha, jumlah sulur 5,2 batang sulur/rumpun dan jumlah sulur yang siap dipanen 3 batang/rumpun. Semua jenis pohon bisa menjadi pohon pemanjat rumput ketak. Di Nusa Tenggara Barat rumput ketak mampu tumbuh diketinggian kurang dari 400 mdpl, lereng landai sampai curam, tipe iklim C sampai E menurut Schmidt dan Fergusson, curah hujan 935-1.511 mm/tahun, temperatur 24-320C, kelembaban50–88%, intensitas cahaya 120-3.872 lux. Ketak tumbuh pada kondisi tanah dengan struktur granuler, tekstur fraksi berpasir, pH tanah agak asam sampai netral, laju resapan air baik, dan bisa tumbuh baik sampai kondisi hara rendah.
PERTUMBUHAN EMPAT POPULASI CEMPAKA (Michelia champaca Linn.) UMUR EMPAT TAHUN (Growth of four populations of cempaka (Michelia champaca Linn.) at four years old) Murniati Murniati; Hani S. Nuroniah; Darwo Darwo
Jurnal Penelitian Hutan Tanaman Vol 16, No 2 (2019): JURNAL PENELITIAN HUTAN TANAMAN
Publisher : Pusat Penelitian dan Pengembangan Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1145.95 KB) | DOI: 10.20886/jpht.2019.16.2.73-85

Abstract

ABSTRACTEx-situ conservation is highly beneficial in protecting biodiversity, especially to save certain species from extinction. Cempaka (Michelia champaca Linn.) is a tree species that is getting rare as its natural population at some areas were difficult to be discovered. Cempaka tree produces not only wood, but also flowers that can be used for perfumery raw materials and essential oils. Therefore, cempaka species needs to be conserved, either through in-situ or ex-situ method. In order to support ex-situ conservation, a plot of cempaka was established in 2011 at Pasir Hantap Research Forest, Sukabumi District-West Java. The genetic materials were collected from four populations, consisted of 42 mother trees divided by Lahat population (9 mother trees), Empat Lawang population (6 mother trees), Malang population (13 mother trees), and Pasuruan population (14 mother trees). Sub plots were designed based on the seedlings origin (population) and distance among sub plots were ≥ 50 m to avoid cross pollination among populations. The plots were maintained regularly, including weeding, fertilizing, and pest control. Growth observation of cempaka plants was conducted every six months up to 36 months old and then every one year afterwards. The observation consists of survival rate, height and diameter of cempaka stems. Average survival of cempaka plants at 48 moths old was 82.4%, the highest survival was found at Lahat population (94.8%). The highest height and diameter were found at Lahat population as well, i.e. 7.35 m and 13.1 cm, respectively. The lowest survival rate was found at Malang population (64.0%), meanwhile the lowest height and diameter growth were found at Pasuruan provenance, i.e. 2.99 m and 3.9 cm, respectively. It can be concluded that the highest growth, meaning its best performance of cempaka plants was shown by Lahat provenance. It implies that characteristics of mother trees and the seed quality gave a significant effect to the cempaka plant growth. ABSTRAKKonservasi ex-situ berfungsi untuk melindungi biodiversitas, terutama jenis-jenis yang terancam punah. Cempaka (Michelia champaca Linn.) termasuk dalam jenis yang semakin jarang ditemukan di populasi alaminya. Selain dimanfaatkan kayunya, bunga cempaka dipanen sebagai material parfum dan minyak. Sebagai salah satu upaya konservasi ex-situ, plot cempaka dibangun pada tahun 2011 di Hutan Penelitian Pasir Hantap, Sukabumi-Jawa Barat. Material genetik (biji) dikoleksi dari empat populasi cempaka yaitu dari 42 pohon induk yang terdiri atas : Lahat (9 pohon induk), Empat Lawang (6 pohon induk), Malang (13 pohon induk), dan Pasuruan (14 pohon induk). Plot penanaman dirancang berdasarkan asal populasi, selanjutnya jarak plot antar populasi minimal 50 m untuk menghindari terjadinya persilangan antar populasi. Pemeliharaan plot dilakukan secara berkala meliputi penyiangan, pemupukan dan pengendalian hama penyakit. Pengukuran performa pertumbuhan dilakukan setiap 6 bulan hingga umur 36 bulan setelah tanam; dan satu tahun sekali setelahnya. Performa pertumbuhan yang diamati meliputi daya hidup, tinggi dan diameter batang diatas tanah. Daya hidup cempaka pada umur 48 bulan rata-rata sebesar 82,4% dan daya hidup tertinggi ditunjukkan oleh cempaka dari populasi Lahat (94,8%). Tinggi dan diameter tertinggi ditunjukkan oleh cempaka dari populasi Lahat yaitu 7,35 m dan 13,1 cm. Daya hidup terendah ditemukan pada cempaka populasi Malang (64,0%). Tinggi dan diameter pohon terendah teramati pada cempaka populasi Pasuruan yaitu 2,99 m dan 3,9 cm. Populasi terbaik berdasarkan pengamatan performa pertumbuhannya ditunjukkan oleh populasi Lahat. Dari penelitian ini dapat disimpulkan bahwa karakteristik pohon induk dan kualitas benih cempaka berpengaruh terhadap pertumbuhan tanaman cempaka.

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