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Jurnal Penelitian Tanaman Industri
Published by Kementerian Pertanian
ISSN : 08538212     EISSN : 25286870     DOI : -
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Jurnal Penelitian Tanaman Industri merupakan publikasi ilmiah primer yang memuat hasil penelitian primer komoditas perkebunan yang belum dimuat pada media apapun, diterbitkan oleh Pusat Penelitian dan Pengembangan Perkebunan, DIPA 2011 terbit empat kali setahun.
Arjuna Subject : -
Articles 552 Documents
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ANALISIS USAHATANI GAMBIR DI SUMATERA BARAT (STUDI KASUS KECAMATAN HARAU, KABUPATEN 50 KOTA) ERMIATI A. F.; PUTI ROSMEILISA
Jurnal Penelitian Tanaman Industri Vol 7, No 3 (2001): September, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n3.2001.67-73

Abstract

Analysis of gambir farming system (Uncaria gambir Roxb) in West Sumatra (case study of Harau Sub District, 50 Kota District)Prospect of gambir cither for domestic or export markets is very potential. However, this prospective cash crop, is not immediately followed by the improvement of its productivity and farmers income. This condition, may due to the fact thai until now farmers have used Ihe recommended technology for cultivation and processing and the farmers, have limited capital for developing gambirs farming system. The objective of this research was to study the feasibility and contribution of gambir farming system (o the farmer prosperity, and the constraint of developing gambirs farming system in this region. The research was conducted al Kelinggian villages, Harau f>ub District. 50 Kola District. West Sumatra in November 1999 using survey method. Thirty respondents were taken by simple random farmers income was analyzed through income analyses. While the feasibility of farming system was analyzed through Beneit Cost Ratio, Net Pesent Value (NPV), and Internal Rale of Retun (IRR). The results of feasibility analysis, based on discount factor of 15%. showed thai a gambir farming system at len years old had that B/C Ratio 1.22, NPV Rp. 3 657 433, and IRR 43% At discount factor of 18%. B/C ratio was 1.20, NPV was Rp 2 890 075, and IRR 43%. The share of gambir farming system to farmers income was Rp. 1 1 548 750 or Rp. I 154 875 per hectare per year Based on Ibis study, it was concluded that gambir farming system in Kelinggian Village. Harau Sub Distict, 50 Kota Dislriel was proitable and feasible lo be developed. Recently, the limited capital. becomes a problem for developing gambir farming. This resulted the farmers unable to adopt the technology for cultivation and processing. More over, the bargaining position of farmers is also weak, due to buycr- up system. It is, therefore, suggested that the Village Cooperative Unit (KUD) is supported, in order to supply the production inputs and the product.
PELACAKAN TETUA POPULASI KELAPA DALAM MAPANGET No.32 (DMT-32) MENGGUNAKAN ANALISIS ALIRAN GEN (Gene Flow) BERDASARKAN PENANDA MIKROSATELIT (SSR) DONATA S PANDIN; ALEX HARTANA; HAJRIAL ASWIDINNOOR; ASEP SETIAWAN
Jurnal Penelitian Tanaman Industri Vol 14, No 4 (2008): Desember 2008
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v14n4.2008.131-140

Abstract

ABSTRAKKelapa Dalam Mapanget (DMT) merupakan salah satu kelapadalam unggul produksi dan kadar minyak serta protein yang baik.Beberapa populasi generasi DMT telah diseleksi selama tahun 1957 –1979 menghasilkan populasi DMT 32. Penelitian ini bertujuan untukmelacak tetua melalui aliran gen dalam beberapa generasi populasi kelapaDMT-32 hasil penyerbukan campuran polen, pada taraf DNA berdasarkanpenanda mikrosatelit (SSR). Bahan tanaman yang digunakan dalampenelitian ini adalah populasi hasil penyerbukan kelapa DMT-32 generasikedua (DMT-32 S2), populasi DMT-32 generasi ketiga (DMT-32 S3), danpopulasi DMT-32 generasi keempat (DMT-32 S4) berturut-turut sebanyak9, 40, dan 38 pohon. Analisis hubungan tetua dengan zuriatnya meng-gunakan program komputer CERVUS ver. 2.0. Jumlah primer SSR yangdigunakan sebanyak 19 primer dan 15 di antaranya dapat digunakan untukmelacak tetua dari individu-individu kelapa DMT-32 S3 dan DMT-32 S4.Semua individu DMT-32 S2 menjadi tetua dari individu-individu DMT-32S3, tetapi tidak semua individu DMT-32 S3 menjadi tetua dari DMT-32S4. Hasil pelacakan tetua menunjukkan bahwa 2 pohon DMT-32 S3 yangbenar-benar hasil penyerbukan hasil zigot polen sendiri dari satu pohonkelapa DMT-32 S2 No.8, dan 1 pohon zuriat dari DMT-32 S2 No.3. PadaDMT-32 S4 ada 2 individu pohon yang benar-benar merupakan hasilpenyerbukan zigot polen sendiri pohon DMT-32 S3 No.28, masing-masing1 pohon zuriat dari DMT-32 S3 No.32 dan DMT-32 S3 No.35. DMT-32S2 No.1 merupakan tetua dari 8 individu DMT-32 S3, dan lima darizuriatnya adalah tetua dari 13 individu DMT-32 S4. DMT-32 S2 No. 2adalah tetua dari 9 individu DMT-32 S3 dan empat nomor di antaranyamenjadi tetua dari 14 individu DMT-32 S4. DMT-32 S2 No.3 merupakantetua dari 11 individu DMT-32 S3 dan enam nomor pohon di antaranyamenjadi tetua dari 18 individu DMT-32 S4. DMT-32 S2 No.4 memiliki 5zuriat dan dua nomor pohon di antaranya menjadi tetua dari 7 individuDMT-32 S4. DMT-32 S2 No.5 merupakan tetua dari 10 pohon DMT-32S3 dan enam nomor pohon di antaranya menjadi tetua dari 24 pohonDMT-32 S4. DMT-32 S2 No.6 adalah tetua dari 4 zuriat DMT-32 S3 danhanya satu nomor pohon yang menjadi tetua dari 4 individu pohon DMT-32 S4. DMT-32 S2 No.7 merupakan tetua dari 10 zuriat pohon DMT-32S3, lima di antaranya merupakan tetua dari 20 pohon DMT-32 S4. DMT-32 S2 No.8 memiliki 12 zuriat DMT-32 S3, dan empat di antaranyaadalah tetua dari 15 pohon DMT-32 S4. DMT-32 S2 nomor 9 merupakantetua dari 7 pohon DMT-32 S3, dan empat diantaranya adalah tetua dari17 pohon DMT-32 S4.Kata kunci : Cocos nucifera L, Mapanget Tall Coconut (DMT 32),mikrosatelit, SSR, pelacakan tetuaABSTRACTParentage analysis of Mapanget Tall Coconut No.32 (DMT-32)population via gene flow based on Microsatellite Markers (SSR)Mapanget Tall Coconut (DMT) is one of the superior coconut for itsproduction, coconut oil and protein. Several generation of the DMTpopulation has been selected in 1957 – 1979 producing DMT 32generations. The aim of this research was to analyze the parents ofMapanget Tall Coconut No.32 (DMT-32) in DNA level via gene flowbased on microsatellite markers (SSR). Plant materials used in thisresearch were nine (9) palms of DMT-32 S2, 40 palms of DMT-32 S3 and38 palms of DMT-32 S4. Relationship between parents and progeny wereanalyzed by using CERVUS ver. 2.0 computer program. Among 19 SSRprimers used, 15 of them can be used in parentage analysis of MapangetTall Coconut No.32 of third and fourth generations. All of 9 (nine) palmsof DMT-32 S2 are the parents of DMT-32 S3, but some of those palms ofDMT-32 S3 are not the parents of DMT-32 S4. The result of parentageanalysis showed that two palms of DMT-32 S3 were progeny of selfedDMT-32 S2 No.8, and one palm was progeny of selfed DMT-32 S2 No.3.In DMT-32 S4 there were two palms progeny of DMT-32 S3 No.28 andone palm was progeny of DMT-32 S3 No.32 and DMT-32 S3 No.35respectively. DMT-32 S2 No.1 had 8 progeny in DMT-32 S3 and five ofthose were the parents of 13 individu DMT-32 S4. DMT-32 S2 No. 2 had9 progeny in DMT-32 S3 and four of those were the parents of 14 individuDMT-32 S4. DMT-32 S2 No.3 had11 progeny in DMT-32 S3 and six ofthose were the parents of 18 individu DMT-32 S4. DMT-32 S2 No.4 had 5progeny in DMT-32 S3 and two of those were the parents of 7 individuDMT-32 S4. DMT-32 S2 No.5 had 10 progeny in DMT-32 S3 and six ofthose were the parents of 24 individu DMT-32 S4. DMT-32 S2 No.6 had 4progeny in DMT-32 S3 and only one was the parent of 4 individu DMT-32S4. DMT-32 S2 No.7 had 10 progeny in DMT-32 S3 and five of thosewere the parents of 20 individu DMT-32 S4. DMT-32 S2 No.8 had 12progeny in DMT-32 S3 and four of those were the parents of 15 individuDMT-32 S4. DMT-32 S2 No.9 had 7 progeny in DMT-32 S3 and four ofthose were the parents of 17 individu DMT-32 S4.Key words : Cocos nucifera L, Mapanget Tall Coconut (DMT-32),microsatellite, SSR, parentage analysis
EVALUASI KETAHANAN BEBERAPA AKSESI JAMBU METE (Anacardium occidentale L.) TERHADAP HAMA Helopeltis antonii SIGN. (HEMIPTERA: MIRIDAE) ANDI MUHAMMAD AMIR; ELNA KARMAWATI; HADAD E. A.
Jurnal Penelitian Tanaman Industri Vol 10, No 4 (2004): Desember, 2004
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v10n4.2004.149-153

Abstract

Penelitian evaluasi ketahanan beberapa aksesi jambu mete (Anacardium occidentale L.) terhadap hama Helopeltis antonii Sign. (Hemiptera: Miridae) telah dilaksanakan di Laboratorium Hama dan Penyakit dan Rumah Kasa Balai Penelitian Tanaman Rempah dan Obat (BALITTRO) Bogor, mulai bulan April sampai Desember 2004, bertujuan untuk menguji ketahanan beberapa aksesi jambu mete terhadap H antonii. Perlakuan tcrdiri atas sembilan aksesi jambu mete, yaitu (1) Balakrisnan (B-02), (2) Madura (L3-3), (3) Jatiroto Jambon (III/4-5), (4) Gunung Gangsir 180, (5) Madura (M4-2), (6) Jogya Putih (XII/8), (7) Mojoketo (XIII/8), (8) Tegineneng (A3-2), dan (9) Wonogiri (C6-5). Penelitian terdiri atas (a) preferensi tanpa pilihan, disusun dalam rancangan acak kelompok (RAK) diulang 5 kali, dan (b) preferensi dengan pilihan, disusun dalam rancangan acak kelompok (RAK) diulang 3 kali. Hasil penelitian menunjukkan bahwa jambu mete aksesi Mojokerto (XIII-8) dan Balakrisnan (B-02) merupakan aksesi jambu mete tahan dan toleran terhadap hama //. antonii.Kata kunci: Anacardium occidentale L, ketahanan, hama, Helopeltis antonii ABSTRACT The evaluation of resistances of some cashew lines (Anacardium occidentale I,.) to Helopeltis Antonii Sign. (Hemiptera: Miridae)The research on the evaluation of resistances of some cashew lines (Anacardium occidentale L.) to Helopeltis antonii Sign. (Hemiptera: Miridae) was conducted in the Pest and Diseases Laboratory and Green House Indonesian Spice and Medicinal Crops Research Institute Bogor, from April to December 2004, to test the resistances of some cashew lines to H. antonii. The treatment consisted of nine cashew lines that is, (1) Balakisnan (B-02), (2) Madura (L3-3), (3) Jatiroto Jambon (I1I/4-5), (4) Gunung Gangsir 180, (5) Madura (M4-2), (6) Jogya Putih (XII/8), (7) Mojokerto (XIII/8), (8) Tegineneng (A3-2), and (9) Wonogiri (C6-5). The research consisted of, (a) preferences without choice, compiled in a randomized completely block design (RCBD) replicated 5 times, and (b) preferences with choice, compiled in a randomized completely block design (RCBD) replicated 3 times. The result indicated that cashew lines of Mojoketo (XIII-8) and Balakrisnan (B-02) were resistant and tolerant to H. antonii.Key words: Cashew, Anacardium occidentale L., resistance, pest. Helopeltis antonii
SERANGAN Mimegralla coeruleifrons Macquart PADA TANAMAN JAHE DAN PERANANNYA DALAM MEMBAWA PATOGEN PENYAKIT LAYU RODIAH BALFAS; SUPRIADI SUPRIADI; NURI KARYANI; ENDANG SUGANDI
Jurnal Penelitian Tanaman Industri Vol 5, No 4 (2000): Maret, 2000
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v5n4.2000.123-127

Abstract

The attack of Mimegralla coeruleifrons on ginger plants and its role in carrying pathogens of wilt diseaseRhizome flics Mimegralla coeruleifrons (Diplera; Micropezidae) ac frequently oten found in the diseased ginger rhizome caused by Ralstonia solanacearum, bill it has nol been known which one made the irst damage. Experiments were conducted at laboratory and green house of the Research Institute for Spice and Medicinal Cops from September 1998 to I'cbruary 2000. to examine the attack of M coerulefrons on healthy and disease ginger plants and its role in carrying the pauiogen. Hie experiments consisted of three parts, ink-station of the fly in healthy and diseased ginger plants, disease tansmission and detection of R solanacearum in M coeruleifrons larvae and adults, fiingcr plants were grown in pot containing, sterile media The pots were placed in the field and the plants were inoculated with R solanacearum and iininoculatcd. then they were caged or uncaged. Adult lies (33 - 35 pairs) were introduced into the cage. The uncaged plants were allowed to be naturally invested by the flies. Disease transmission used adult Hies which were collected from diseased ginger plantation. The lies were fed with suspension of R solanacearum. then introduced into cages containing healthy ginger plants. The flies were also directly caged on healthy plants Detection of/?, solanacearum in larvae and adults was carried out by isolation on selective medium and ELISA techniques. Results showed that M coerulefrons mostly attacked the inoculated ginger plants. Tliere was no evidence of Iransmission of R solanacearum by the fly. whereas nearly 50% of the ield collected lics carried R solanacearum. These results tend to suggest that the attack of M. coerulerons occured ater the ginger has been infected by wilt disease and the ly can be a carrier of/? solanacearum.
PENGARUH ZAT PENGATUR TUMBUH DAN PUPUK PELENGKAP CAIR TERHADAP PERTUMBUHAN DAN PRODUKSI RAMI DI WONOSOBO SASTROSUPADI, ADJI; SANTOSO, BUDI; DJUMALI, .
Jurnal Penelitian Tanaman Industri Vol 9, No 1 (2003): Maret, 2003
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v9n1.2003.4-10

Abstract

Tanaman rami (Boehmeria nivea) dipanen setiap dua bulan, sehingga hara yang tcrangkut melalui panen cukup besar. Untuk itu dilakukan percobaan pembeian zat pengatur tumbuh (ZPT) dan pupuk pelengkap cair (PPC) yang dimulai pada bulan April 2001. Ixikasi percobaan di Desa Sedayu, Sapuran, Kab. Wonosobo pada jenis tanah latosol coklat dan tipe iklim Bl Tujuan penelitian untuk mengctahui/mempelajai pengaruh /.PT dan PPC serta kombinasinya dalam memacu pertumbuhan vegetatif klon Pujon 10 dan Jawa Timur. Perlakuan disusun secara faktorial dalam rancangan petak terbagi dengan tiga ulangan Perlakuan petak utama terdiri atas macam klon rami. yaitu Pujon 10 dan Jawa Timur, sedangkan anak petak berupa pembeian ZPT, PPC. dan ZPT ' PPC tcrdii atas scmbilan macam yang meliputi : (1) 60 N + 20 P,Oj * 60 KjO ' 10 ton pupuk kandang sapi, (2) 60 N • 20 P20, • 60 KjO - 10 ton pupuk kandang sapi • ZPT 1 (kons 1 ml/1), (3) 60 N • 20 PjO, + 60 K20 > 10 ton pupuk kandang sapi • ZPT 2 (0 5 ml/I); (4) 60 N * 20 P20, ♦ 60 KjO ♦ 10 ton pupuk kandang sapi * PPC 1 (3 g/l); (5) 60 N • 20 P20, - 60 K20 t 10 ton pupuk kandang sapi • PPC 2 (0.65 gl); (6) 60 N < 20 P205 + 60 K20 + 10 ton pupuk kandang sapi ♦ ZPT 1 + PPC I, (7) 60 N + 20 P2Os + 60 K20 r 10 ton pupuk kandang sapi t ZPT1 + PPC 2, (8) 60 N - 20 P2O5 * 60 KjO 1 10 ion pupuk kandang sapi + ZPT 2 + PPC 1 dan, (9) 60 N + 20 P2Oj + 60 K20 t 10 ton pupuk kandang sapi + ZPT 2 l- PPC 2. Ukuran petak 3 6 m x 6 m, jarak tanam 60 cm x 40 cm. Hap lubang ditanam satu stck rhi/.om panjang 8 cm Hasil percobaan menunjukkan bahwa pembeian ZPT 1 * PPC 2 dan ZPT 2 * PPC 2 dengan pemupukan NPK melalui lanah dapat meningkatkan pertumbuhan vegetatif dan hasil serat dibanding dengan pemupukan melalui tanah saja. Peningkatan hasil serat panen II • III masing-masing mencapai 58% (dari 565 2 kg/ha tanpa ZPT - PPC menjadi 895.0 kg/ha) dan 61% (dai 565.2 kg/ha tanpa ZPT + PPC menjadi 908.5 kg/ha). Potensi hasil klon Pujon 10 lebih besar dibandingkan dengan klon Jawa Timur.Kata kunci : Boehmeria nivea, ZPT, PPC, pupuk kandang ABSTRACT Effect of growth regulators and liquid fertilizers on the growth and yield of ramie in WonosoboCrop removal of ramie plant it very high because it is harvested every 60 days A ield experiment was carried out at Sedayu, Sapuran, Wonosobo since April 2001. Ihe type of soil and climate was brown latosol and Bl respectively. The objective of the expeiment was to study effect of plant regulators, liquid fertilizers (PPC), and its combinations on accelarating vegetative growth on two clones of ramie. The experiment was arranged in split plot design with three replicatins The main plots were two clones of ramie (Pujon 10 and Jawa Timur) and the sub plots were nine treatments consist of plant regulators, liquid fertilizer, and its combination were tried as sub treatment (I) 60 N > 20 P2Oj » 60 K20 + 10 tons manure of cow waste; (2) 60 N * 20 P2Os * 60 K20 I 10 tons manure of cow + ZPT I (kons I ml/1); (3) 60 N « 20 P2Os • 60 KjO * 10 tons manure of cow + ZPT 2 (0.5 ml/1); (4) 60 N + 20 P2Os * 60 KjO I 10 ions manure of cow + PPC 1 (3 g/l); (5) 60 N + 20 P20, + 60 K20 + 10 ions manure of cow < PPC 2 (0 65 g/l); (6) 60 N > 20 P2Oj I 60 K20 * 10 tons manure of cow • ZPT 1 1 PPC I. (7) 60 N * 20 PjO, ♦ 60 KjO + 10 Ions manure of cow ♦ ZPT I * PPC 2, (8) 60 N ♦ 20 P20, ► 60 K20 + 10 tons manure of cow ♦ ZPT 2 • PPC I, and, (9) 60 N ♦ 20 P2Os i 60 K20 ♦ 10 tons manure of cow ♦ ZPT 2 + PPC 2. The plot size was 3.6 m x 6 m, wih 60 cm x 40 cm of plant spacing, and one rhizome of 8 cm length per hole. Results showed that aplication of ZPT I ♦ PPC 2 and ZPT 2 t PPC 2 with NPK fertilizers increase vegetatif growth and yield of iber. The total harvest II t III increased by 58% and 61% respectively. Potential yield of Pujon 10 was higher than Jawa Timur.Key words : Boehmeria nivea, growth regulators, liquid fertilizer, cow manure
EFEKTIVITAS MINYAK JARAK PAGAR DAN JAMUR Beauveria bassiana UNTUK PENGENDALIAN HAMA Helopeltis spp . PADA KAKAO / Effectivity of Jatropha Oil and Beauveria bassiana Fungi to Control Helopeltis spp. on Cacao Elna Karmawati; Siswanto Siswanto
Jurnal Penelitian Tanaman Industri Vol 22, No 4 (2016): Desember, 2016
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v22n4.2016.189-196

Abstract

The oil of jatropha seeds has a potency as botanical pesticide, because of its chemical subtances which are unsaponifiable such as streoester, tryacycerol, diacilglicerol, sterol, monoacilglycerol and others. The chemical substances which are toxic to insect are sterol and triterpene alcohol. The other substance in fruits and seeds which is also toxic is curcin. The objective of this research is to find out the efectivity of jatropha cake and oil on mortality of Helopeltis spp. combined with commercial B. bassiana. Two factors were used in this activity i.e. accessions of Jatropha curcas and strains of B. bassiana. Accession factors consist of nine levels based on phorbol ester and curcin, as B. bassiana consists of three strains, so there were 27 combinations of treatments. The research used factorially block design with three replications. Variables observed were damage intensity, mortality of helopeltis and the effect on cacao seeds and B. bassiana development. The formulation contained 20% of jatropha oil or cake, 60% of solvent, 10% of emulsifiers and others. This formula was diluted in water with 10% concentration. The result of the research were a) Jatropha oil and cake had the same effect on insect mortality b) the combination between two accessions of jatropha (C100 and JW) and ED7 resulted 97-100% mortality, while c) B80 and C81 gave the highest mortality on Helopeltis spp. without the use of fungi.Keywords: Beauveria bassiana, cacao, Helopeltis spp, Jatropha curcas oil AbstrakMinyak biji jarak pagar berpotensi seb agai pestisida nabati, karena mengandung bahan kimia yang bersifat toksik terhadap serangga. Suatu penelitian telah dilakukan di Bogor dan Cianjur dari bulan Januari sampai dengan Desember 2012 untuk mengetahui efektifitas minyak dan bungkil biji jarak pagar dikombinasikan dengan Beauveria bassiana terhadap mortalitas Helopeltis spp. pada pertanaman kakao dan melihat tingkat kerusakannya. Kegiatan penelitian disusun dalam 2 faktor perlakuan yaitu aksesi jarak pagar dan strain B. bassiana. Aksesi terdiri dari 9 level dipilih dari berbagai jenis yang proporsinya berbeda antara curcin dan phorbol ester. Faktor kedua B. bassiana terdiri atas 3 level yaitu strain yang berasal dari kumbang Scolytidae dan Tingidae serta kontrol, sehingga kombinasi seluruhnya menjadi 27 perlakuan. Rancangan yang digunakan faktorial dalam kelompok dan diulang tiga kali. Banyaknya buah per perlakuan adalah tiga buah per tanaman. Pengamatan dilakukan terhadap mortalitas serangga, banyaknya bercak per buah dan pengaruhnya terhadap biji, serta perkembangan B. bassiana. Helopeltis spp. diinfestasikan ke buah kakao yang telah dikerodong. Konsentrasi larutan yang disemprotkan adalah 10 cc/l. Hasil penelitian menunjukkan bahwa: (1) Minyak dan bungkil jarak pagar memberikan efek yang sama terhadap mortalitas Helopeltis (2) Pemilihan aksesi terbaik tergantung dari ada-tidaknya jamur B. bassiana. Bila tersedia B. bassiana strain ED7 pilihan aksesi yaitu C100, dan jarak wangi. Kedua aksesi tersebut bila dikombinasikan dengan strain ED7 menghasilkan mortalitas 97-100%, (3) Apabila jamur B. bassiana tidak tersedia, pilihannya adalah B80 dan C81 karena efektivitasnya paling tinggi tanpa dikombinasikan dengan jamur B. bassiana.Kata kunci: minyak jarak pagar, B.bassiana, Helopeltis sp., kakao
PERTUMBUHAN DAN PRODUKSI BIBIT TEBU G3 KULTUR JARINGAN VARIETAS PS 862 PADA PERLAKUAN JARAK TANAM DAN PUPUK KANDANG / The Production of Tissue Culture Cane Seed G3 PS862 Variety on Plant Spacing and Cow Manure Application Sumanto, Sumanto
Jurnal Penelitian Tanaman Industri Vol 22, No 2 (2016): Juni, 2016
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v22n2.2016.99-106

Abstract

Methods for increasing cane seed stock i.e by using hormones, tissue culture, fertilization, plant spacing, seed types, and organic fertilizer were used. Plant spacing is one factor to obtain optimal growth and plant production. Organic fertilizer can increase soil fertility, chemical fertilizer efficiency, and soil organic matter. Research conducted at the Experimental Station Sukamulya, Sukabumi, on Latosol. The aims of the experiment were to study the influence of plant spacing and manure on production G3 cane seed from tissue culture. Randomized complete block design were used, consisted of two factors, first factor was plant spacing, consisted of five levels. The second factor was manure doses, consisted of four levels. The parameters observed were number of stalks, number of leaves, stalk weight and diameter, number of bud and sprouted bud per clump. Production cane seed are affected by plant spacing. The highest number of stalks (4,2 stalks/clump), number of bud (57,60 buds/clum), and number of sprouted bud/clump (39,71 buds/clump) obtained by plant spacing of 110 cm x 40 cm. As well as manure application significantly affected production of seed cane, application of 9 tonnes/ha provides the highest number of sprouted bud/clump (41,34 sprouted buds/clump) gave significantly from the other treatments. Plant spacing and manure provide significantly interaction the content of N and P content in leaves. Application of manure 6 tonnes/ha at plant spacing of 120 cm x 40 cm provides the highest content of N and P in leaves, 1.47% and 0.16% respectively. The highest K content obtained at plant spacing of 100 cm x 40 cm by application of manure 6 tonnes/ha.
REKAYASA KOLEKTOR SURYA DAN KOMPOR LPG PADA PENGOVENAN DAUN TEMBAKAU VIRGINIA SAMSURI TIRTOSASTRO; DARMONO DARMONO; SUBANDI SUBANDI
Jurnal Penelitian Tanaman Industri Vol 6, No 1 (2000): Juni, 2000
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v6n1.2000.5-13

Abstract

Engineering of solar collector and LPG-burner for curing Virginia tobaccoIndonesia produces 30 tones of Hue cured tobacco every year. Curing Virginia tobacco needs I 29 I kerosene per I kg cured leaves, thus lo process 30 tones cured leaves, it needs 38.7 liter kerosene with a value ol Rp 1 5.5 billion per year Kerosene as a source of energy is used for house hold in Ihe village and it is highly subsidized by the government. For such industries as tobacco processing other sources of energy are available, including gas oil, diesel oil and fuel oil, solar energy, coal, and liquid petroleum gas This study was aimed at designing solar collector and LPG buner suitable lor Virginia tobacco flue curing. Tobacco leaves were cured in a curing barn with LPG as a fuel, while the solar collector was installed on Ihe roof of Ihe barn. The size of the curing barn was 4 m x 4 m x 7 m with a capacity of iwo tones fresh leaves. The LPG-burner used was BA'I'/Baliltas-I, with was specially designed for lobacco curing barn ('nring method followed Ihe standard method practiced by farmers The experiment was conducted al IT Sadhana Arif Nusa. Has! Lombok. NTR from Angus! lo September 1997 The rcsull of experiment was evaluated holh from technical and economical aspects. The used of LPG combined with solar collector as the source of energy could reach Ihe required temperatures (J0-70°(.) during curing phases LPG consumption was 0.86 kg/ kg cured leaves, and solar energy contributed 6.48% of total energy required for curing process From economical view, the used of LPG and solar energy was not profitable. This was mainly due to Ihe high prices of LPG (Rp I 000 /kg) LPG-lank (Rp 1 600 000/unit) and roof- solar collector (Rp I 500 000 per unit).
PENGARUH EKSTRAK SERBUK BIJI MIMBA TERHADAP KONSERVASI MUSUH ALAMI DAN POPULASI Helicoverpa armigera HUBNER PADA TANAMAN KAPAS SUNARTO, DWI ADI; NURINDAH, .; SUJAK, .
Jurnal Penelitian Tanaman Industri Vol 10, No 3 (2004): September, 2004
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v10n3.2004.89-95

Abstract

Musuh alami dalam konsep pengendalian hama terpadu (PHT) merupakan kekuatan alami yang diharapkan dapat bekerja untuk mengen¬ dalikan serangga hama. Musuh alami akan mampu mengendalikan hama apabila sepcnuhnya mendapat kesempatan untuk bcrkembangbiak dan dukungan untuk berperan secara optimal sebagai faktor mortalitas biotik serangga hama. Untuk mendapatkan kesempatan tersebut, perlu didukung dengan tindakan konservasi. Penggunaan insektisida botani serbuk biji mimba (SBM) yang aman terhadap musuh alami diharapkan dapat mengkonservasi musuh alami. Tujuan penelitian adalah menguji pengaruh SBM terhadap musuh alami dan efektivitasnya dalam menekan populasi Helicoverpa armigera Hbn. pada tanaman kapas. Penelitian dilaksanakan di KP. Asembagus pada bulan Desember 1999 sampai dengan Mei 2000. Perlakuan yang diuji adalah (1) penyemprotan dengan insektisida botani serbuk biji mimba (SBM) konsentrasi 20 g/l air, (2) penyemprotan dengan insektisida sintetis betasifultrin (ISB) konsentrasi 1.5 ml/1 air. Masing- masing perlakuan diulang sebanyak 8 kali. Ukuran petak untuk masing- masing perlakuan pada setiap ulangan 25 x 30 m. Penyemprotan SBM maupun IBS dilakukan secara bcrkala sebelum pengamatan populasi hama dan musuh alami mulai 41 hingga 86 hari setelah tanam (hst) dengan selang waktu 5 hari (10 kali penyemprotan). Pengamatan dilakukan setiap 5 hari, sejak tanaman berumur 40 hingga 100 hsl. Variabel yang diamati adalah populasi musuh alami (parasitoid dan predator), populasi ulat dan larva penggerek buah // armigera, kerusakan badan buah, dan hasil kapas berbiji. Hasil penelitian menunjukkan bahwa Insektisida botani SBM dapat mengkonservasi musuh alami terutama predator dan menekan populasi penggerek buah H. armigera pada tanaman kapas. Perbedaan penekanan populasi predator yang disebabkan oleh perlakuan ISB dibanding SBM rata-rata 25%. Parasitisasi telur dan larva H. armigera pada kedua perlakuan tidak berbeda dengan tingkat parasitisasi tertinggi mencapai 63% oleh parasitoid telur Trichogrammatoidea armigera dan 25% oleh parasitoid larva Eriborus argenteopilosus dan Carcelia illola. Efektivitas SBM dalam menekan populasi hama tidak berbeda dengan efektivitas ISB. Populasi larva //. armigera rata-rata 0.95 ekor pada perlakuan SBM dan 1.5 ekor pada perlakuan ISB per 10 tanaman. Tingkat kerusakan buah pada kedua perlakuan kurang dari 10% dengan produktivitas hasil kapas berbiji 1 921 kg/ha pada perlakuan SBM dan 1 838 kg/ha pada perlakuan ISB. Dengan demikian, maka SBM layak digunakan sebagai substitusi ISB.Katakunci: Gossypium hirsutum L, Azadirachla indica A. Jussieu, insektisida botani, konservasi musuh alami, Helicoverpa armigera Hbn. ABSTRACT The effect of neem seed powder extract on natural enemy conservation and population of Helicoverpa armigera (Hubner) on cottonIn IPM concept, natural enemies are expected to act as natural power in controlling the pests. They will eonlrol the pests when they are in an encouraging environment. Conservation is possible to build such environment. The use of botanical insecticide, extract of neem seed powder (NSP), which is relatively save for natural enemies could be expected for conservation. The objective of this research was to test the effects of NSP extract on Helicoverpa armigera and its natural enemies. The research was carried out at Asembagus Research Station from December 1999 to May 2000. The treatments applied were: NSP spray (NSP) versus betasifultrin chemical insecticide spray (BCI); designed in 8 replicates. The plot size was 25 m x 30 m. Both NSP and BCI were applied every 5 days since 41 days ater planting (dap) to 86 dap (10 sprays). Variables observed were the population of natural enemies (parasitoids and predators), H. armigera (eggs and larvae), damaged bolls and seed cotton production. The results showed that NSP did not have any adversary effects on parasitoids and predators on cotton, but it does on // armigera so that it could be functioned for natural enemy conservation Average suppression on predator population by BCI was higher 25% than thai of NSP. However, egg and larvae parasitism on BCI and NSP were not significantly different. The highest parasitism level was 63% and 25% by egg parasitoid Trichogrammatoidea armigera and larvae parasitoid Eriborus argenteopilosus and Carcelia illola, respectively. The effectiveness of BCI on H. armigera larvae was not significant with NSP. Larvae population was 0.95 larvae/10 plants and 1.5 larvae/10 plants on BCI and NSP, respectively. Fruit damage on both treatments was less than 10% and seed cotton productivity was 1 921 kg/ha and I 838 kg/ha on NSP and BCI, respectively. Therefore, NSP could be used as BCI substitution.Key words : Gossypium hirsutum L, Azadirachla indica A. Jussieu. botanical insecticides, natural enemy conservation, Helicoverpa armigera Hbn
EFISIENSIPEMANEAATAN NPV DAN Trichogramma UNTUK PENGENDALIAN ULAT BUAH KAPAS HeUcoverpa armigera HBN SRI HADIYANI; IG. A.A. INDRAYANI; S. A. WAHYUNI; D. A. SUNARTO; SUPRAPTO SUPRAPTO; HARJYANTO HARJYANTO
Jurnal Penelitian Tanaman Industri Vol 5, No 2 (1999): September, 1999
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v5n2.1999.74-79

Abstract

The purpose of this esearch was to study the efficiency in using HeUcoverpa armigera Nuclear Polyhedrosis Virus (HaNPV) and Trichogrammatoidea armigera Nagaraja to improve and simplify' Integrated Pest Control recommendation package for farmers. This research was conducted in Asembagus Experimental Station, Situbondo, East Java, from December 1997 to May 1998. Cotton plants were planted in monocultue system and the pests were controlled using IPM-3 recommendation package. This research was designed in randomized block with 3 treatments, and 3 eplicates. HaNPV spraying was based on the treshold; releasing T. armigera was based on the theshold, and the schedule of insecticide spraying was every 10 days. The esult showed that treatment of eleasing T armigera followed by application of insecticide was the most efficient (B/C ratio ■ 1.39), compared with the insecticide spraying schedule (B/C ratio = 1.21), and spraying of HaNPV fB/C ratio =1.12).

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