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INDONESIA
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 5 Documents
 1 
Search results for , issue "Vol 7, No 3 (2001): September, 2001" : 5 Documents clear
KONSERVASI TANAMAN LADA (Piper nigrum L.) SECARA IN VITRO YELNITITIS YELNITITIS; NURLIANI BERMAWIE
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.v7n3.2001.88-92

Abstract

In vitro conservation of black pepper (Piper nigrum L.)Black pepper (Piper nigrum L.) is one of the economically im¬ potant spices. The major constraint in black pepper cultivation and conservation in ield is foot rot disease caused by Phytopthora capsici which could cause plants die. Conservation of black pepper germplasms as living collections in ield is risky due to pests and natural disaster. The experiment on in vitro cop ervation of black pepper var. LDL was conducted al the laboratory of Plant Genetic Resources and Breeding, Research Institute for Spice and Medicinal Crops (RISMC) Bogor from April 1998 to Maret 1999. Single node cuttings from sterile culture were used as explains. The explains were cultured on Murashige and Skoog (MS) medium on full and half strength concentration supplemented with paclobutrazol (paclo) (0, 1, 3 and 5 mg/1). The experiment was performed in a randomized complete block design arranged factorially with 10 replications. The result showed that the medium supplemented with paclo on both full MS and MS A medium could suppress vegetative growth until 12 months. There was no signiicant interaction between medium and paclo on shoot initiation. The effect was signiicant on shoot height, number of leaves and culture performances. Increasing paclo concen¬ tration caused higher suppression of plant growth. MS A medium supplemented with paclo 5 mg/1 showed the slowest growth with shool height 2.10 cm and number of leaves 9. Culture performance was fresh, with green leaves and vigorous. Advcntive shoots were able to regenerate on the medium supplemented with BA 0.3 mg/1. In vitro conservation of black pepper with paclo did not change plant regeneration ability. Therefore, this technique may be used as an altenative method for black pepper conservation.
PENELITIAN PERUBAHAN WARNA DAN ETILEN SELAMA PEMERAMAN DAUN TEMBAKAU KULTIVAR MADURA SERTA PENGARUHNYA TERHADAP MUTU TEMBAKAU RAJANGAN JOKO PURDIYANTO
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.v7n3.2001.93-97

Abstract

Colour alternation and et/tylene changes during ripening tobacco leaves cultivar Madura and its effect to the quality of slice Madura tobaccoThe colour change and elhylene production in the leaves of Madura tobacco (Nicotiana tabacum) during ripening was studied at "Labora¬ torium Biokimia Pusat Antar Universitas Pangan dan Gizi Universitas Gadjahmada Yogyakata" and "Laboratorium Inti dan Atom Jurusan I'isika, FMIPA Universitas Gadjahmada Yogyakata". The change of colour was measured with Chrommameter CR-200. while the production of ethylcne, ACC (1-aminocyclopropanc-l-carboxylic acid) and MACC (malonyl-ACC) were measured with Photoaccuslic Spectroscopy, from the sample of 100 kg tobacco leaves cv. Jepon grown from April to September 1995 in Plakpak, Pcgantenan, Pamekasan, East Java. The experiment was designed as a completely randomized design in three replicates. The leaves samples were taken randomly from the mature middle leaves Results showed that endogenous ethylcne production al the irst day al a level of 169 ppb. was able to initiate ripening. Conversion percentage of ACC to ethylcne for 8 days ripening increased from 7.7 up lo 61.4 %. F tests least signiicantly different (1%). showed that yellow intensity signiicantly increased on the second day. This indicated thai ripening process was stated on the second day. On the other hand green intensity significantly decreased at the ifth day, thus no chlorophyl degradation. Brightness was signiicantly observed on Ihe third day of ripening, meaning that ripening stated on the third day. Based on the three criteria, the best ripening period was from the third lo the ilth day. This implies that the farmers will have three day periods of ripening which can be arranged to overcome the shotage of man power for slicing the leaves.
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.
POLA PERTUMBUHAN DAN SERAPAN HARA Echinacea purpurea MONO RAHARDJO; SUDIARTO SUDIARTO; ROSITA SMD; SUKARMAN SUKARMAN
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.v7n3.2001.74-83

Abstract

Growth pattern and nutrient uptake of Echinacea purpureaEchinacea purpurea or purple cone flower, belongs lo Aslcraceac family which grown naturally in Noth America. The plant known as is Ihe number one Immune herbs in the world, since it has a greal potential lor improving and developing leukocyte cell activity. Recently, Echinacea has been evalualcd/tcsled as adjuvant in cancer therapy, AIDS and chronic exhaustion. Echinacea purpurea is more potential for immunity improvement lhan those of other herbal medicine. Therefore, the study on its growlh rale, growth pattern, and nutrient uptake in a new tropical environmental condition is very important in order lo suppot its cultivation technology, lo identify the growth pattern, growlh rale, nutrient uptake, and simplisia quality. A ield trial had been conducted in Cipanas at 1 100 m above sea level (asl) in 1999-2000. Plot size was 4x3 m, and plant spacing was 50 x 40 cm. Ten samples was taken from each growth stage of the plants. The growth stages were (I) vegetative I (VI) at I month alter planting (map), (2) vegetative 2 (V2) al 1 .5 map, (3) generative I (Gl) at 2 0 map, (4) generative 2 (G2) at 2.5 map. (5) generative 3 (G3) at 3.0 map. and (6) generative 4 (G4) al 3.5 map. The results of the research showed thai growth rate, nutrient uptake of N, P. K. Mg. and S linearly increased in line with Ihe increase of plan! ages The highest dry weight accumulation was found on aerial part of plant (slem I leal), and the lowest was occurred on root pat. The amount of dry weight accumulation was 75.72 g/plnul. and nutrient uptake oIN, P. K.Ca, Mg, and S. respective!) was 1529.1. 1 40.01. 1943.25, 654.59. 358.66. and 88.57 mg/plant.
POTENSI CENDAWAN Synnematium sp. SEBAGAI AGENS PENGENDALI Lawana sp. (FLATIDAE; HOMOPTERA) ELLYDA ABAS WIKARDI; GNR PURNAYASA; SISWANTO SISWANTO
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.v7n3.2001.84-87

Abstract

Potency of Synnematium sp. as biocontrol agent of Lawana sp. (Flatidae; Homoptera)Research on potency of Synnematium sp. as biocontrol agent of Lawana sp. was carried out from May to June 2001 with a scries of pathogenicity tests in ield laboratory Narmada (Mataram) and Insect Laboratory Balittro, Bogor. The research consisted of two pats ie: (I) inoculation of the fungi on egg cluster of Lawana sp. of different ages, and (2) inoculation of the fungi with various application methods to the imagoes of Lawana sp.. Results showed that Synnematium sp. could infect 0-4 days old of eggs. Eggs more Uian 4 days old could be also infected, however 3-5% could still hatch to be nymphs. Application to parasitized eggs did not affect the parasitoid to hatch. Tests on the adults showed that 3 days ater inoculation with the fungi, adults of Lawana sp. became weak, while the motality occurred ater 5 days inoculation. Colony of Synnematium sp. on PDA media, primarily was white, then dark small balls sclcrotium, and formed synnemata on the top. The presence of sclerotia and synnemata seemed that the fungi is potential to be developed as microbial insecticide material ("micoinsectiside").

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