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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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PENGARUH INOVASI TEKNOLOGI DAN PENGGUNAAN INPUT TERHADAP PRODUKTIVITAS KELAPA SAWIT DI PROVINSI KALIMANTAN BARAT / Influence of Technological Innovation and Use of Production Input on Productivity of Oil Palm in West Kalimantan Province I Ketut Ardana; Ketut Kariyasa
Jurnal Penelitian Tanaman Industri Vol 22, No 3 (2016): September, 2016
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v22n3.2016.125-134

Abstract

Indonesian government within the framework of the Master Plan for the Acceleration and Expansion of Indonesian Economic Development (MP3EI) have established oil palm as the main commodity to be developed in the so-called corridor of Kalimantan. This is mainly due to the commodity role as Indonesia's main export commodities as well as the tipping point of regional economic development in ensuring the welfare of local farmers in a sustainable manner. West Kalimantan is one of the centers of the development of oil palm in Kalimantan, after Central Kalimantan. This study aimed to analyze the role of the superior technology and use of production inputs to improve the productivity of oil palm and the factors that influence the adoption of new technologies at the farm level. Results of decomposition analysis of productivity showed that the productivity of oil palm plantations increased by 45.59%. The role of the difference in the applied technology is 22.62% and 22.97% came from the difference in input use. Quality of seeds available/planted by farmers contributed significantly to the level of productivity. Adequate provision of improved seed policies must be the top priority in efforts to improve the productivity of oil palm in the future. The policy needs to be accompanied by quality control and distribution of improved seed is strictly and continuously. The next priority policies should be aimed at encouraging farmers to use production inputs as recommended . In order for the policy to be effective, it needs to be supported by the trading system improvements to ensure the feasibility of palm oil prices at the farm level.Keywords: oil palm, decomposition of productivity, innovation, production inputs AbstrakPemerintah Indonesia dalam kerangka Masterplan Percepatan dan Perluasan Pembangunan Ekonomi Indonesia (MP3EI) telah menetapkan komoditas kelapa sawit sebagai komoditas utama untuk lebih dikembangkan di wilayah Kalimantan Barat atau disebut koridor Kalimantan. Hal ini terutama disebabkan oleh peran komoditas ini sebagai komoditas ekspor utama Indonesia dan sekaligus sebagai titik ungkit pembangunan ekonomi daerah dalam menjamin peningkatan kesejahteraan petani setempat secara berkelanjutan. Kalimantan Barat merupakan salah satu sentra pengembangan kelapa sawit di Kalimantan, setelah Kalimantan Tengah, oleh sebab itu penelitian dilaksanakan di Kalimantan Barat pada tahun 2013. Penelitian ini bertujuan menganalisis peran teknologi unggulan dan penggunaan input produksi terhadap perbaikan produktivitas kelapa sawit dan faktor-faktor yang mempengaruhi adopsi teknologi baru di tingkat petani. Hasil analisis dekomposisi produktivitas menunjukkan bahwa penggunaan teknologi unggulan (karakterisik teknologi unggulan perbaikan manajemen produksi, serta penggunanan input sesuai anjuran) menyebabkan produktivitas kelapa sawit meningkat sebesar 45,59%. Dari peningkatan tersebut, sebesar 22,62% bersumber dari adanya perbedaan teknologi yang diterapkan dan 22,97% bersumber dari adanya perbedaan penggunaan input. Kualitas benih yang tersedia/ditanam petani memberikan kontribusi nyata terhadap tingkat produktivitas. Dalam upaya meningkatkan produktivitas sawit, maka penyediaan benih unggul yang memadai harus menjadi kebijakan prioritas utama dalam pengembangan kebun sawit ke depan. Kebijakan prioritas berikutnya dapat ditujukan untuk mendorong petani agar menggunakan input produksi sesuai anjuran. Kebijakan ini tentunya akan efektif jika pada saat yang sama petani juga memperoleh harga sawit yang layak.Kata kunci: kelapa sawit, dekomposisi produktivitas, inovasi, input produksi
WAKTU TANAM KAPAS DI SULAWESI SELATAN PRIMA D. RIAJAYA; M. SHOLEH; F. T. KADARWATI; M. RIZAL
Jurnal Penelitian Tanaman Industri Vol 7, No 2 (2001): Juni,2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n2.2001.35-42

Abstract

Cotton Planting Times in South SulawesiClimatic elements particularly the rainfall strongly influences successful production of rainfed cotton (Gossypium hirsutum). Planting times determined based on more than 20 years daily rainfall data. The rainfall was analyzed using Markov Chain First Order Probability and dryspell probability methods The rainfall data were collected from 46 rainfall stations over Jeneponto, Soppeng, Wajo, Gowa, Bone. Bulukumba. Bantaeng, and Takalar. The planting times varied from the irst week to the fourth week of December for Jeneponto, Takalar, and mostly Gowa. The planting times in Soppeng and Wajo were ranged from the third week of February to the third week of March. Morever, cotton planting times in Bone and Bulukumba were ranged from the third week of March to the third week of April.
KERAGAAN PERBENIHAN JAHE DI JAWA BARAT MAHARANl HASANAH; . SUKARMAN; . SUPRIADI; M. JANUWATI; R. BALFAS
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.v10n3.2004.118-125

Abstract

Untuk memperbaiki sistem perbenihan jahe telah dilakukan penelitian terhadap pctani maju di Jawa Barat yang secara tradisional mcnsuplai kebutuhan benih jahe untuk petani disekitarnya atau petani di daerah lain. Penelitian dilakukan dengan metode survei di dua kabupaten, yaitu Majalengka (Kecamatan Banjaran dan Lemah Sugih) dan Kabupaten Sukabumi (Kecamatan Parakan Salak, Jampang Tengah, Tegallega, dan Waning Kiara). Wawancara dilakukan secara langsung dengan petani maju meliputi kondisi lahan, cara budidaya, panen, dan penanganan benih. Contoh rimpang diambil secara acak dai hasil panen petani kemudian dianalisis kualitasnya meliputi: penampilan fisik, berat rimpang, kadar air, serat, dan pati, serta jenis OPT. Hasil penelitian menunjukkan bahwa tidak ada petani yang secara khusus menanam jahe untuk benih. Lahan pertanaman jahe bcrada pada kisaran kelinggian tempat (dpi) 400-800 m. Sumber benih berasal dari hasil panen tahun sebelumnya Cara penanganan benih ada yang dihampar di atas rak bambu atau di gelar di atas tanah di bawah kolong rumah. Sebelum ditanam, benih diperlakukan tcrlebih dahulu dengan fungisida atau bakterisida. Petani menanam jahe dengan sistem polikultur dengan tanaman lain seperti kacang tanah, jagung, pisang, bawang merah, dan bawang daun. Cara tanam ada yang menggunakan bedengan (umumnya di Majalengka), sedangkan di Sukabumi umumnya tidak menggunakan bedengan, jarak tanam bervariasi antara 20 x 30 cm di dalam baris dan 30-80 cm antar baris. Panen dilakukan setelah tanaman berumur 8-10 bulan Hasil analisis kandungan pati cukup tinggi 42.4 - 56.35%, serat 5.67 - 7.40%, dan kadar air 8.37- 9.80%. Jenis OPT yang paling banyak ditemukan pada contoh benih jahe Aspidiella hartii. Mimegralla, dan Meloidogyne spp., sedangkan Ralstonia solanacearum tidak ditemukan. Hasil penelitian menunjukkan bahwa untuk membentuk suatu sistem produksi benih jahe yang standar maka unsur yang sangat menentukan adalah umur panen harus cukup tua (9-10 bulan), bebas dari OPT, dan penanaman bisa secara polikultur dengan tanaman bukan inang.Kata kunci: Jahe, Zingiber officinale, perbenihan, benih, OPT, hama, penyakit ABSTRACT Performance of indigenous ginger seed systems in West JavaTo improve the system of ginger seed production, a study was conducted on developed ginger farmers in West Java who traditionally supplied ginger seeds to the farmers in the surrounding area or in other area. The research was conducted by survey method in two districts, Majalengka (Banjaran and Lemah Sugih sub districts) and Sukabumi (Parakan Salak, Jampang Tengah, Tegalega and Warung Kiara). Direct dialogue to farmer was used to discuss about land condition, cultivation method, harversting and seed management. The rhizome/seed sample was taken by random from the farmers, then it was analyzed for quality, such physical quality, weight of rhizome, moisture content, fiber, carbohydrate and kinds of pest and deseases. The result of the research showed that there were no farmers who special cultivated ginger for seed. Ginger land area was located about 400-800 m above sea level (asl). Seed source was derived from the ginger seed of previous harvest. The ginger seeds were directly spread on bamboo rack or in the space under the house. Before planting, the seeds were treated with fungicide or bactcricide. The farmers, planted ginger by polyculiurc system with peanut, maize, banana, shallot, and green shallot. Generally, in Majalengka District, the farmers planted their ginger using seed bed method, while in Sukabumi the fanners planted of ginger without seed beds. Plant spacing was 20-40 cm in the row and 30-80 cm between rows. Harvest was done 8-10 months ater planting. Carbohydrate content was relatively high 42.4 - 56.35%, fiber 5.67-7.40% and moisture content 8.37- 9.80%. The majority of pest and disease found in ginger seed were Aspidiella hartii, Mimegralla and Meloidogyne, while the dangerous disease such as Rasllonia solanacearum was not found. Based on the result of research it could be recommended that to develop a standard ginger seed system the harvesting time is 9 to 10 months ater planting, seed are free from disease attack, and the ginger can be cropping system with non hostplant.Key words: Ginger, Zingiber officinale, seed system, seed, pest, disease
PENGARUH SUBKULTUR DAN LAMA PERIODE KULTUR PADA DAYA MULTIPLIKASI TUNAS LADA (Piper nigrum L.) ASAL BIJI VARIETAS PETALING I NATALINI NOVA KRISTINA; NURLIANI BERMAWIE
Jurnal Penelitian Tanaman Industri Vol 5, No 3 (1999): Desember, 1999
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v5n3.1999.98-102

Abstract

Effect subculture and culture period on shoot multipli¬ cation in black pepper Petaling IAn expeiment on shoot multiplication in black pepper Petaling I from planting to until shoot multiplication changes and the effect of culture peiod, was conducted in the Laboratory of Genetic Research and Breeding of Balittro. Bogor from May 1997 to June 1998. The seeds wee germinated on MS medium without growth regulator. Ater sprouting the shoots wee removed to MS multiplication medium + BA 0.3 mg/1 + polypynyl pyolidon 200 mg/1 for subcultue and culture peiod. In the subculture expeiment, explant was removed after 3 months to new medium. In the cultue peiod the explant was visible until 4 months after that, explant was removed to new medium. The results showed that the highest multiplication rate was found after 3'° subculture with 9.2 shoots and the best cultue peiod was three months with 9.3 shoots. After 4* months the shoots died, due to fenolic activity which changed pH medium from acidic (5.8 to basic 7.13).
DOSIS SUBLETAL S/NPV DAN PENGARUHNYA TERHADAP TRANSMISI VERTIKAL PADA LARVA Spodoptera litura F. IG. A.A. INDRAYANI; T. HADIASTONO; G. MUDJIONO
Jurnal Penelitian Tanaman Industri Vol 9, No 2 (2003): Juni, 2003
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v9n2.2003.55-62

Abstract

Ketcrganlungan pada insektisida kimia dalam pengendalian serangga hama kapas merupakan salah satu alasan pemanfaatan patogen serangga, khususnya S/NPV untuk mengendalikan larva S. litura. Mcskipun secara tcknis agen pengendalian ini cukup potensial mengendalikan hama sasaran, tetapi pemanfaatannya secara luas masih menghadapi banyak kendala, salah satunya adalah tcrbalasnya produk komersial yang menyebabkan aplikasi kurang optimal. Fcnomena transmisi vetikal S/NPV pada generasi hama bcikutnya cukup berpotensi mengendalikan inangnya secara langsung. Penelitian ini dilakukan di l-aboratorium Hama Balai Penelitian Tanaman Tembakau dan Serat Malang, mulai April hingga Agustus 2002. Tujuannya adalah untuk memperoleh informasi mengenai pengaruh dosis subletal S/NPV pada perkembangan larva S. lilura dan potensinya dalam mentransmisikan infeksi S/NPV pada generasi bcrikutnya (FI). Penelitian disusun secara faktorial dengan rancangan acak kelompok (RAK) yang terdiri atas dua faktor. Faktor petama adalah instar larva S. litura terdiri atas dua taraf, yailu: (1) instar ketiga, dan (2) instar kelima. Faktor kedua adalah dosis subletal S/NPV terdiri atas liga laraf, yaitu 5000. 50 000: dan 500 000 PlB'larva. Sebagai pembanding perlakuan digunakan kontrol (tanpa perlakuan S/NPV), dan setiap perlakuan diulang empat kali. Hasil penelitian menunjukkan bahwa pengaruh dosis subletal S/NPV pada larva S. litura instar ketiga dan kelima, selain menyebabkan motalitas larva, juga mengurangi bobot pupa dan jumlah lelur Larva instar ketiga lebih peka icrhadap infeksi S/NPV yang menyebabkan pupanya mcmiliki bobol (erendah, yaitu 211.5 mg pada laraf dosis 50 000 PIB/larva. Rendahnya bobol pupa berkorelasi positif dengan menurunnya jumlah telur imago, yaitu hanya mencapai 30% (502 butir) dari jumlah telur pada kontrol Peningkatan laraf dosis subletal meningkatkan persentase telur ter¬ kontaminasi polihedra, yaitu tertinggi 24% pada taraf dosis 500 000 PIB/larva, dan juga menurunkan daya tetas telur. Sterilisasi berpotensi menghambat transmisi vetikal S/NPV pada generasi berikutnya (FI), sehingga menurunkan persentase motalitas larva neonate FI. Tanpa sterilisasi pada lelur, motalitas larva neonate IT mencapai t 20%, tetapi dengan sterilisasi menyebabkan motalilas larva rendah yaitu t 5%.Kata kunci : Dosis subletal, entomopatogen S/NPV, transmisi vertikal, S. litura, instar, mortalitas, pupa, neonate, cpizootik. kapas ABSTRACTSublelhal dose of SINPV and its effects on vertical transmission on larvae of Spodoptera lituraOne reason of the use of cnlomopathogen is to reduce chemical inscctisides application on cotton pest insect control S/NPV is one of ihe effective entomopathogen to control S. litura larvae. Technically, this biological agent is effective to control the insect pest, however it is not used widely because of its limited commercial product. Solving this problem is needed such as searching for another information about killing potential of S/NPV to the next generation of the insect pest, especially to anticipate the less frequency of its application. Therefore, infection through vetical transmission is one of ihe solutions. The research were conducted al the Laboratory of F-ntomology of Indonesian Tobacco and Fibre Crops Research Institute (ITOFCRI), Malang, from April to August 2003. The aim of the study was to get information about sublcthal doses of S/NPV and its effect to S litura larvae development and vetical transmission potency to Ihe next larval generation (FI) of Ihe insect pesl. This study was arranged in factorial by using Randomized Block Design with 2 factors: (1) instar of larvae (third and fith instar), (2) sublethal doses of S/NPV (5 000; 50 000, and 500 000 PIB.larvac) and one control (untreated) as a comparison to treatments. The result showed thai the effect of sublelhal doses of S/NPV on (he third and fith instars of S. litura larvae was nol only caused mortality, but also less pupal weight and egg numbers. The third instar of larvae was more susceptible to S/NPV infection which caused lowest weight of pupae ca. 211.5 mg at 50 000 PIB/larva level of dose. There was positive correlation between less pupal weight and decreased of egg numbers which only 30% (502 eggs) of that in control Increasing sublethal dose of S/NPV would increased polyhcdra- contaminatcd eggs by 24% at 500 000 PIB/larvae and decrease the egg hatch. Egg surface sterilization would obstruct vetical transmission of S/NPV to their new generation of larvae (FI), so it decreases the percentage of neonate larval motality rom 20% to 5% when untreated and treated surface egg sterilization, respectively.Key words: Sublethal dose, entomopathogenic S/NPV. vetical transmission, S. lilura, instar, mortality, pupae, neonate, epizootic, cotton
LAJU PERTUMBUHAN INTRINSIK Helopeltis antonii SIGN. PADA BUAH MENTIMUN SEBAGAI PAKAN ALTERNATIF DJATNIKA K.; I. WAYAN LABA; W. R. ATMADJA
Jurnal Penelitian Tanaman Industri Vol 4, No 4 (1998): November, 1998
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v4n4.1998.115-118

Abstract

Intrinsic growth rate of Helopeltis antonii Sign. (Hemip- tera; Miridae) on cucumberfruit as an alternativefoodThe study on the intinsic rate of natural increase of Helopeltis antonii Sign. On cucumber ruit as an alternative food was conducted in the pest and disease Laboratory, Research Institute for Spice and Medicinal Crops Bogor rom January o June 1998. Helopeltis antonii is well known as the pest of cashew, cacao and tea The objectives of the experiment wee to study the reproduction rate and fecundity of H antonii. The insects were collected from the field of cashew tees in Bogor. A pair of newly emerged adult was eleased into a plastic jar containing cucumber fruit. The fruit was changed daily until the insects died. A newly emerged nymph was eaed individually in a plastic cup containing a peace of cucumber ruit which was renew every 2 days. Birch exponential equation: N,=No.e" was used for analyzing data. The results showed that intrinsic rate (r) of//, antonii was 0.106. Net eproduction rate (Rn) was 18.952 times for each generation. The generation period was 27.747 days. The value of finite rate of increase was 1.1 12 times/day. After one month and two months a pair of insect would multiply to 24 and 578 pairs, espectively.
EVALUASI KESUBURAN TANAH UNTUK PERTANAMAN TEBU DI KABUPATEN REMBANG, JAWA TENGAH / Evaluation of Soil Fertility to Sugarcane at Rembang District, Central Java Fitriningdyah Tri Kadarwati
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.v22n2.2016.53-62

Abstract

Rembang District is an area of Central Java production center which has the main characteristics dominated by dry land. Dry land issues related to the low availability of water and nutrients. It determines the area of soil fertility conditions. Soil fertility affects the growth, production, and yield of sugarcane. Study of soil fertility conducted through the soil fertility evaluation methods of chemical analysis of matching data criteria soil with soil chemical properties. The sampling method is based on the land unit mapping. Soil fertility assessment based on the analysis of soil chemical properties that include cation exchange capacity (NH4Oac extraction method), pH (pH meter), C-Organic (Walkey and Black method), base saturation (estimation of pH mapping), P2O5 (Olsen and Bray-1 method), and available K (flamephotometer). Soil fertility in Rembang district classified into low until moderate. The limiting factor in soil fertility were consists of nitrogen content, cation exchange capacity, pH, available P2O5, organic carbon, and available K
PENGARUH PENYAKIT KRUPUK TERHADAP HASIL DAN MUTU DELAPAN VARIETAS TEMBAKAU VIRGINIA GEMBONG DALMADIYO; MOCH. AMIR KARTAMIDJAJA
Jurnal Penelitian Tanaman Industri Vol 6, No 2 (2000): September, 2000
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v6n2.2000.33-36

Abstract

The effect of tobacco curl disease on the yield and quality of eight Virginia tobacco varietiesTobacco leaf curl disease is one of the important diseases on Virginia tobacco which especially occurs in dry condition. The use of resistant varieties is one of the most effective way to control the disease. This experiment was lo evaluate the effect of tobacco curl disease on tobacco varieties (DB 101, Coker 319, Coker 176, Coker 48, Coker 86, and Coker 371 Gold) and two promising lines (T.45/T.65 and T.45/T.69). The experiment was conducted in Pekuwon, Sumberrejo, Bojonegoro from April to October 1997. The experiment was arranged in randomized block design with three replications. The tobacco seedlings wee transplanted in 0.9 m x 0.6 m spacing and 9.0 m x 9.0 m plot size. The fertilizer dosage applied are 300 kg ZA + 108 kg SP-36 + 156 kg ZK per ha The parameters observed including percentage of diseased plant, productive leaves, as well as the yield and quality of leaves. The esults showed that Coker 371 Gold variety showed the lowest disease percentage (6.89%), decrease in productive leaves was high (71.86%), Whereas the two promising lines, were T.45/T.6S and T.45/T.69 showed that the percentage of diseased plants wee not significantly different compared with DB 101, Coker 319, and Coker 48, but the decrease in productive leaves was lower. The yield of these promising lines were 10.12-10.30 kg/81 m!, grade indexes 86.04-87.27, and crop indexes are 88.31-88.63. Coker 176 was the most susceptible variety. The percentage of diseased plant, flue- cured yield, grade index, and crop index on Coker 176 wee 42.67%, 7.77 kg/81 m!, 86.09, and 66.89, respectively.
BIOLOGI Aspidomorpha miliaris, F. PADA BEBERAPA KONSENTRASI EKSTRAK DAUN GAMBIR . ADRIA; HERWITA IDRIS
Jurnal Penelitian Tanaman Industri Vol 10, No 2 (2004): Juni 2004
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v10n2.2004.51-58

Abstract

Aspidomorpha miliaris. F. (Coleoptera: Chrysomelidae) termasuk hama penting pada tanaman Ipomoeaceae, Convolvulaceae dan Cucurbitaceae yang pengendalian populasinya perlu diarahkan memakai insektisida botanis, mengingat produk dai tanaman ini umumnya bcroricntasi pangan. Gambir (Uncaria gambir, Roxb), merupakan salah satu tanaman sumber bahan pestisida botanis yang potensial, karena daun tanaman ini mengandung senyawa kimia berupa catechin, tannin catecu (tannat), querchitin dan beberapa senyawa lainnya. Sehubungan dengan itu lelah dilakukan penelitian tentang aspek biologis A. miliaris pada beberapa konsentrasi ekstrak daun gambir di Kebun Percobaan Laing Solok mulai bulan Juli 2001 sampai Januari 2002. Penelitian memakai rancangan acak lengkap dengan 7 perlakuan dan 4 ulangan, masing-masing perlakuan adalah ekstrak daun gambir konsentrasi 1000, 2000, 3000, 4000, 5000, 7500 ppm dan lanpa ekstrak (0 ppm) sebagai kontrol. Parameter pengamatan meliputi persentase kematian larva, pupa dan imago, persentase penetasan telur dan emcrgensi pupa, fckunditi imago, penurunan volume makan dan panjang siklus hidup. Hasil penelitian menunjukkan bahwa ekstrak daun gambir mcmiliki sifat insektisidal yang baik sehingga mampu mempengaruhi aspek biologis dari serangga A. miliaris. Dalam konsentrasi 5000 ppm dan 7500 ppm bahan ini dapat menyebabkan kematian terhadap larva instar III, IV, V, VI sebesar 65.20%, 62.00%, 55.20%, 46.80% dan 79.40%, 74.20%, 67.80%, 57.00%. Kedua konsentrasi juga mampu meningkatkan kematian imago 6.85% dan 7.15% menekan persentase penetasan lelur (18.09% dan 21.94%) dan emergensi pupa (16.72% dan 20.82%). Di samping itu konsentrasi diatas dapal menekan volume makan larva dan imago, mempengaruhi masa prcreproduktif dan tingkat fckunditi imago seta memperpanjang siklus hidup.Kata kunci: Uncaria gambir Roxb., insektisida botanis, ekstrak daun, Aspidomorpha miliaris, F., aspek biologis ABSTRACTBiology of Aspidomorpha miliaris F. at several concen¬ trations ofgambier leavesextractAspidomorpha Miliaris F. (Coleoptera Chrysomelidae) is an impotant pest in Ipomoeaceae, convolvulaceae and cucurbitaceae plants. Their population need to be controlled by using botanical insecticide, consideing thai the product from these plants usually be oiented to food. Gambier (Uncaria gambier.Roxb), is a potential source for botanical pesticide, because the leaves contain chemical compounds in the form of catechin, lannin catecu (tannat), querchitin and some other compounds. In connection with that, the research on biologycal aspects of A. millions at some concentration of gambier leaf extract was done in KP. Laing Solok from July 2001 lo January 2002. The research used a completely randomized design with 7 treatments and 4 replications. The concentration of gambir leaf extracts were 1000, 2000, 3000, 4000. 5000, 7500 ppm. 0 ppm as control The paiiiineleis oliseivcd were laivac motality, pupae and Imago, egg exlotion and pupae emergency, imago fecundity, the decrease of eating volume and life cycles. The research result showed that gambier leaf extract had good inseciicidallity and was able to influence the biology aspect A. miliaris insect. At the concentration of 5000 ppm and 7500 ppm this extract caused mortality to the larva instar III, IV, V, VI as much as 65.20% 62.00%, 55.20% 46.80% and 79.40%, 74.20%, 67.80%, 57.00%. Both the concentraions also were able (o increase (he imago motality 6.85% and 7.15%, pressed down the egg exlosion percentage and pupae emergency 18.09% and 21.94% and 16.72% and 20.82%. Besides these concentrations above could press down larvae and imago eating volume, influences the prareproductive period and the imago fecundity level and life cycles.Key words: Uncaria gambir Roxb., botanical insecticide, leaf extract, Aspidomorpha miliaris F., biological aspect
PRODUKTIVITAS SIFAT KIMIA DAGING DAN AIR BUAH ENAM JENIS KELAPA HIBRIDA ELSJE T. TENDA; H. G. LENGKEY; MIFTAHORRACHMAN MIFTAHORRACHMAN; HELDERING TAMPAKE
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.v5n2.1999.39-45

Abstract

Productivity, chemical characteristics of coconut meat and water of six coconut hybridsThis research was conducted in Kima Atas Research Station-North Sulawesi for 10 years (1988-1998). The altitude is 80 meters above sea level, with soil type young vulcanic and climate type Ri Oldeman. The ield experiment was designed as a randomized block design with 5 replications, the number of palms was each 12 for treatment planted at 9 m x 9 m tiangle. The treatment consisted of six hybrids viz: Raja Dwarf (GRA) x Mapanget Tall (DMT), Bali Yellow Dwarf (GKB) x Mapanget Tall (DMT), Bali Yellow Dwarf (GKB) x Takome Tall (DTE), Nias Yellow Dwarf (GKN) x Takome Tall (DTF), and GKN x DTA (Khina-1) with GKN x WAT (PB-121) as control. The observation was done on the time of lowering, coconut and copra production, resistence to Phytophthora and chemical characteistics of coconut meat and water. The results of the expeiment showed that the time of lowering of GRA x DMT, GKB x DMT and GKN x DTE hybrids were not sipificantly diferent from with Khrna-I and PB-121 as control. At the 9* year, the nuts production per palm per year of GKN x DTE and GKB x DTE hybids were higher compared to other hybrids, but from the 8-9* years. the copra production of four hybrids were higher than PB-121 and Khina-I. The hybrids GRA x DMT and GKB x DTE wee more esistant to Phytophthora. The protein and oil content per palm of four hybids and Khina-1 wee better than that of PB-121.

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