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All Journal Jurnal Tanaman Industri dan Penyegar Buletin Tanaman Tembakau, Serat & Minyak Industri
Dibyo Pranowo
Balai Penelitian Tanaman Rempah dan Aneka Tanaman Industri
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Industrial & Manufacturing Engineering

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Skrining Provenan Jarak Pagar Terpilih di Beberapa Agroekosistem Hadi Sudarmo; Moch. Mahfud; . Djumali; Dibyo Pranowo; Tukimin S.W.
Buletin Tanaman Tembakau, Serat & Minyak Industri Vol 2, No 1 (2010): April 2010
Publisher : Balai Penelitian Tanaman Pemanis dan Serat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bultas.v2n1.2010.19-25

Abstract

Pengembangan jarak pagar sebagai bahan bakar nabati (BBN) memerlukan bahan tanam yang unggul. Se-leksi rekuren sederhana terhadap populasi hasil eksplorasi dari beberapa daerah telah menghasilkan tiga po-pulasi unggul, yaitu IP-1A, IP-1M, dan IP-1P yang diprediksi mempunyai potensi produksi 45 ton per ha/ta-hun mulai tahun ke-4. Namun demikian populasi terpilih tersebut apabila dibudidayakan oleh petani secara sederhana, nilai ekonomis hasilnya belum menguntungkan. Penelitian skrining provenan ini dalam rangka mendukung pengembangan varietas unggul jarak pagar berproduktivitas tinggi dan berkadar minyak tinggi. Penelitian ini diawali pada tahun 2007, berlokasi di 3 tempat yaitu Kebun Percobaan (KP) Asembagus, KP Muktiharjo, dan KP Pakuwon. Genotipe yang diskrining sebanyak 20 provenan terdiri atas 17 genotipe yang berasal dari provenan terpilih yaitu HS-49/NTT, SP-16/Sulsel, SP-8/Susel, NTB-2555, NTB-554, NTB-3189, NTB-3052, NTB-575, Puncu/Jatim, PT-3/Lampung, PT-7/Lampung, PT-13/Lampung, PT-14/Lampung, PT-15/Lampung, PT-18/Lampung, PT-26/Banten, PT-33/Lampung, dan 3 populasi terpilih hasil seleksi masa ya-itu IP-1A, IP-1M, IP-1P, yang digunakan sebagai pembanding. Perlakuan disusun dalam rancangan acak ke-lompok dengan ulangan 3 kali. Setiap perlakuan ditanam dalam petak berukuran 10 m x 8 m dengan jarak tanam 2 m x 2 m. Hasil skrining provenan terpilih jarak pagar di Asembagus, Muktiharjo, dan Pakuwon ada-lah tiga provenan yang berpotensi produksi dan berkadar minyak tinggi, yaitu HS-49, NTB-3189, dan PT-7/Lampung. Ketiganya memiliki potensi produksi pada tahun 2009 masing-masing 1.150,70 kg; 1.113,30 kg; 1.064,60 kg/ha/th dan kadar minyak 37,66%; 35,39%; dan 35,84%. The main problem in developing physic nut as a source of biofuel is unavailability of the superior plant mate-rials. Recurent selection of collected physic nut population found three superior provenances i.e., IP-1A, IP-1M, and IP-1P which have been predicted to have production potency of 45 tones/ha/year in fourth year onwards. However, if selected provenances are cultivated with a simple crop management it would not give economically profitable. Therefore, it needs to develop high yield and oil varieties. Screening of selected pro-venances was started 2007 in three Research Stations (RS) Asembagus, Muktiharjo, and Pakuwon, with dif-ferent agroecosystem. The screened genotypes were: HS-49/NTT, SP-16/Sulsel, SP-8/Susel, NTB-2555, NTB-554, NTB-3189, NTB-3052, NTB-575, Puncu/Jatim, PT-3/Lampung, PT-7/Lampung, PT-13/Lampung, PT-14/Lampung, PT-15/Lampung, PT-18/Lampung, PT-26/Banten, PT-33/Lampung, and three of mass se-lected: IP-1A, IP-1M, IP-1P as comparison. This research used randomized block design with three replica-tions. Results showed that three provenances: HS-49, NTB-3189, and PT-7/Lampung have superior potential production and oil content in those three locations. The potential production and oil content of HS-49, NTB-3189, and PT-7/Lampung in 2009 were 1,150.70 kg; 1,113.30 kg; 1,064.60 kg/ha/year; and 37.66%; 35.39%; 35,84% respectively.
PEMANFAATAN LAHAN DIANTARA TANAMAN JAMBU METEMUDA DI LAHAN MARGINAL Dibyo Pranowo; Eko Heri Purwanto
Jurnal Tanaman Industri dan Penyegar Vol 2, No 2 (2011): Buletin Riset Tanaman Rempah Dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Abstract

The use of space among young cashew trees in marginal lands. Cashew trees are mostly planted in monoculture way, so it would be not efficient in using the space of lands. As the crops widely planted and increase of their canopy with its ages, there is avail able space that might be used for growing crops, particulary those do not need full intensity of the sun. This enable many annual crops such as corn, peanuts, upland rice that may be grown among the trees. The use of annual crops should take into account their tolency to the sun intensity. The cashew trees having root system which develop laterally need certain technology that might be develepod. Some intercrops that might be suitable be grown among them are corn, peanut, and upland rice. Previous results revealed that growing annual crops like corn yielded of 4.5 ton/ha, peanut of 975 k g/ha, and combination of the both of 3981 kg/ha and 308 kg/ha, while those of situbagendit upland rice yielded of 2.9 ton. The results showed that growing the intercrops among the cashew tress may give reasonable income for farmers as alternatively solution in optimizing of the space of lands between cashew rees.
Pupuk Organik sebagai Subtitusi Pupuk Anorganik Menuju Pertanian Lada Perdu Organik Dibyo Pranowo; Syafaruddin Syafaruddin
Jurnal Tanaman Industri dan Penyegar Vol 2, No 3 (2011): Buletin Riset Tanaman Rempah dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Abstract

Utilization of organic fertilizer as a substitute of anorganic fertilizer toward organic pepper shurbs have been done at experimental garden Pakuwon by using pot system in paranet screen house in May-December 2009. The experimental design of the study  is Group Randomized Factorial Design, The first factor consists of two types of pepper hybrid LH4-5-5 (V1) and LH 6-2 (V2), and use Petaling 1 (V3) as a comparison. The second factor is the technology package, is doses of organic fertilizers as a substitute for anorganic fertilizers with composition level of media: P0 = soil 1:1 organic fertilizer + 100%  anorganic fertilizer recommendation (GAP), P1 = soil 1: 2  organic fertilizer + 80% anorganic fertilizer GAP, P2 = soil 1: 3  organic fertilizer + 60%anorganic fertilizer  GAP, P3 = soil  1:4  organic fertilizer  + 40% anorganic fertilizer GAP and P4 = soil 1: 5 20% organic fertilizer+ anorganic fertilizer GAP. The number of plants per treatment is 5 plants and 3 replication, so therefore total number is 225 plants. The observed parameters : plant height, number of primary and secondary branches, stem base diameter, node length and leaves number per branch, also macro and micro nutrient analysis of each of media treatment. The result showed that anorganic fertilizer NPK-Mg requirement on pepper shrubs at vegetative stage can be substituted with 80% organic fertilizer and 20% anorganic fertilizer.  Hybrid pepper LH 6-2 and LH 4-5-5 higher potencial production than Petaling 1. At 4 month after planting did not  show no significant differences of vegetative growth between treatment and variety, this result shown probability of pepper shrubs cultivation on pot system can be cultivated with organic system.
Pengaruh Pupuk Majemuk NPK dan Fosfat terhadap Pertumbuhan dan Produksi Jarak Pagar IP3-P Kurnia Dewi Sasmita; Dibyo Pranowo
Jurnal Tanaman Industri dan Penyegar Vol 2, No 3 (2011): Buletin Riset Tanaman Rempah dan Aneka Tanaman Industri
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

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Abstract

Jatropha curcas was one of raw alternative material to produce bio fuel. Production of Jatropha require fertilizers in order to optimalize input usage. This research to determine dose of NPK (15:15:15) and fosfat fertilizers for growth and production of Jatropha curcas L provenan IP3-P. The research was conducted at Jatropa curcas main garden, Pakuwon, Sukabumi in March to December 2009. The design environment used Random Block Design (RBD)  arranged in factorial and repeated 3 replications. The first factor was dose of NPK fertilizers i.e : 0, 60, 120, 240, 360 g/tree/year, and comparator dose 40 g urea/tree/year, 110 g SP-36/tree/year, 30 g KCl/tree/year. Second factor was dose of P fertilizers i. e. : 0, 10, 17, 24 g P/tree/year. The result showed that 360 g NPK fertilizers/tree/years application significantly increases vegetative growth on number of branch and diameters of stem. The best dose of fosfat fertilizer for vegetative growth was 17 g/tree/year. Combination of NPK fertilizers with dose 240 g/tree/year and 17 g P fertilizer/tree/year increases significantly wight of fresh fruit and wight of dry fruit at 6 month of tree age.
Co-Authors . Djumali Eko Heri Purwanto Hadi Sudarmo Kurnia Dewi Sasmita Moch. Mahfud Syafaruddin Syafaruddin Tukimin S.W.