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Prof. Dr. Elna Karmawati
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INDONESIA
Jurnal Penelitian Tanaman Industri (Littri)
Published by Pusat Penelitian dan Pengembangan Perkebunan
ISSN : 08538212     EISSN : 25286870     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Penelitian Tanaman Industri (JLITTRI) aims to publish primary research articles of current research topics, not simultaneously submitted to nor previously published in other scientific or technical ojournals. General review articles will not be accepted. The journal maintains strict standards of content, presentation,and reviewing. SCOPE The journal will consider primary research papers from any source if they make an original contribution to the experimental or theoretical understanding and application of theories and methodologies of some aspects of agricultural science in Indonesia including: Estate crops; Soil science; Climate science; Agronomy; Plant breeding; Biotechnology; Genetic resources; Plant pathology; Plant physiology; Entomology; Farming system; Postharvest technology; Socio-economic agriculture; Environment; Agricultural extension. The journal publishes Indonesian or English articles. Since the year of 2017, the jurnal is published twice a year in (June and December).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 7, No 1 (2001): Maret, 2001" : 6 Documents clear
GALUR HARAPAN KENAF ADAPTIF DI LAHAN BONOROWO, KABUPATEN LAMONGAN SUDJINDRO SUDJINDRO; MARJANI MARJANI; BAMBANO HELIYANTO; DUDUT SUNARDI
Jurnal Penelitian Tanaman Industri Vol 7, No 1 (2001): Maret, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n1.2001.31-34

Abstract

Promising kenaf lines adaptive to flooded area in Lanongan districtThe objective of the trial was lo ind out the most adaptive kenaf lines for flooded area in Lanongan district with a productivity of at least 20% higher than the best control varieties. The trial was conducted at Mojoasem viliage, Larcn sub-district, Lanongan. The trial was designed as a randomized block in 3 replications. Twenty kenaf genotypes consisting of 17 kenaf new lines and 3 control varieties were tested in this experiment. Plot size and plant spacing used was 2 m x 10 m and 20 cm x 15 cm, respectively. The seeds were sown in September 1999. Parameters observed were plant height, stem diameter, frish weight and dry ibre weight. The results showed that lines He 85-9-73 , He 85-9-75. and He 583 were the most promising lines for flooded areas Lanongan with the productivity of 3.4, 3.1, and 3.0 tons dry ibre per ha.
PENGENDALIAN HAMA TERPADU Helopeltis antonii PADA TANAMAN JAMHU MENTE ELNA KARMAWATI; TRI HARYANI SAVITRI; WARSI RACHMAT; TRI EKO WAHYONO
Jurnal Penelitian Tanaman Industri Vol 7, No 1 (2001): Maret, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n1.2001.1-5

Abstract

Integrated Pesl Control Research of // antonii on cashew was studied out in Wonogiri, Central Java from May lo December 2000. Ihe objective of the study was lo obtain Ihe efective eonlrol method Spill plot design was used. Ihe main plots were intercropping system of cashew with (a) niunghcan and (b) mixed of cassava, peanut and maize, The subplots were treatments of (a) benomyl without B bassiana. (b) R bassiana without benomyl, and (c) eonlrol The concentation of benomyl used were 2 g per liter, while for II. bassiana 11) g per liter containing I. I x 10* conidias. Treatments were applied on Ihe beginning of October 2000, and observations were done twice in one month. The area needed for all plots were 24 000 m1 (4 replications). Hie asscsments consisted of (a) number of //. antonii eggs, nymphs and its natural enemies, (b) number of flowers and shoots attacked, and (c) cashew nut per tree. The result showed thai there was interaction between the Iwo factor tested. Mix-cropping with R bassiana reduced //. antonii population on cashew and increased productivity from 3.85 kg lo 5.33 kg per tree. These treatments were therefore recommended for controlling the pest.
PENGGUNAAN MINYAK SOLAR DAN SINAR SURYA PADA PENGOVENAN TEMBAKAU VIRGINIA SAMSURI TIRTOSASTRO; ABI DWI HASTOMO; SOEBANDI SOEBANDI; DARMONO DARMONO
Jurnal Penelitian Tanaman Industri Vol 7, No 1 (2001): Maret, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n1.2001.24-30

Abstract

The use of diesel-oil and solar energy as an alternative energyfor Virginia tobacco curingThe use of diesel oil and solar energy in the curing on Virginia tobacco was studied in two steps, i.e., the laboratory experiment al Ihe Research Institute for Tobacco and fiber Crop Malang and ield experiment (economic scale) in East Lombok, NIB. The study was conducted from July to September 1998. The laboratory experiment was aimed at evaluating the effect of diesel oil on (he aroma of cured leaves. Results showed that there was no Strange aroma of Ihe cured-leaves, as the effect of diesel-oil burning Ihe experiment using economic scale curing-bani indicated that the diesel-oil consumption was 0 76 l/kg krosok and if flat-plate solar collector was constructed as a roof, consumption decreased 7.84% which was equal with 0.06 l/kg krosok or 2.574 kJ/kg krosok. Economic analyses showed that using diesel-oil and flat-plate solar collector as a energy source gave a proit chance and an ability to pay the 18%/year of the capital interest, with B/C ratio -1.74, NPV=Rp 45 340 131, and IRR-52 93%. If only diesel-oil was used, it gave a lower proit with B/C ratio=l.77, NPV=Rp 46 425 215. and IRR=53.19%. The increase in the diesel-oil price up to Rp I 500/1 would give a profit chance and an ability lo pay the capital interest, with the B/C ratio = 1.487 and 1 .490. with IRR = 52.67% dan 52 99%, for curing the tobacco leaves with diesel-oil and solar collector, and with diesel-oil only, respectively.
PENGARUH ASAM FULVAT TERHADAP PERTUMBUHAN, PRODUKTIVITAS, DAN MUTU RIMPANG JAHE MUHAMAD DJAZULI; IRENG DARWATI; ROSITA SMD
Jurnal Penelitian Tanaman Industri Vol 7, No 1 (2001): Maret, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n1.2001.6-10

Abstract

Fulvic acid is an extraction product of humus which is very potential for supplement fertilizer and able to reduce either inorganic or organic fertilizer application. The information about fulvic acid application as supplement fertilizer on ginger in Indonesia is still limited. The objective of the study was lo find oul the efect of fulvic acid as supplement fertilizer on the growth, productivity and quality of young ginger. A green house trial was conducted from July lo November 1996. Five levels of fulvic acid concentration, 0, 2.5, 5, 7.5, and 10% were sprayed every week from 4 to 1 5 weeks ater planting (WAP). A randomized block design was used with five replicates. The results indicated that the growth of plant height and number of tiller of ginger increased rapidly al 8 WAP, then il became slowly from 12 lo 1 5 WAP Application 10% of fulvic acid was able to increase vegetative parts 99.6%, fresh and dry weight of rhizome 89 and 125% respectively, and starch content of rhizome 22.6%. To find oul of the optimal effect of fulvic acid on productivity and quality of ginger, a further research using higher level and application frequency of fulvic acid as an extract product from several humus types in Indonesia is needed.
PENGARUH SUHU DAN UKURAN INANG TERHADAP BIOLOGI Trichogramma sp. PARASITOID TELUR PADA Cricula trifenestrata ELLYDA ABAS WIKARDI; TOTO DJUWARSO; TYASNING N.; O. N. RISANTI
Jurnal Penelitian Tanaman Industri Vol 7, No 1 (2001): Maret, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n1.2001.18-23

Abstract

The experiment was conducted to study the effect of temperature and host size on the growth and development of Trichogramma sp., a species of parasitoid which attacks Cricula trfenestrata s eggs. The experiment was carried oul in the Pesl laboratory, Dalillro, Bogor. with relative humidity ranged between 60-80%. temperature ranged.between 23-25°C, 26-28°C, and 29-3 l"C. with two kinds of different egg size (big and small). This research was conducted from March lo Sepeniber 2000, to optimize the production (generation) of Trichogramma sp. in the Laboratory. The resuts showed that some of Ihe biological index of Trichogramma sp., changed when it was cultivated in different temperature and host size. Temperature influenced longivity of parasitoid while host size influenced almost all of Ihe biological index. Although it was hardly measured, however the temperature and host size seemed to have mutual support in Influencing 7}"fcAogrximnta biological index. In low temperature, the development of parasitoid was longer than that in high temperature, while parasitoid behaviour in ovipositing was influenced by egg size. On Ihe big size host, parasitoid tended ovipositing all al once, while thai on small host ovipositing was done one by one. Ihe average of Trichogramma generation on big host was 42.1 ± 17.1 with sex ratio 1 8.8 I , while thai on small host was 73.3 ± 1 3.2 with sex ratio 6.71 I , where female was plcnticr than male. By using Birch methods, it was showed that intrinsic growth rate (r„) and net reproductive rale (Ro) on big size host were lower compared with small size host while generation lime (T) on big host was longer than small host. Ro values were significantly different belween the two hosts. The result of this experiment also showed that on both host sizes, optimum value of T, Ro and rm was achieved on 26-28°C. These results arc expected to guide parasiloid breeders lo decide the temperature and host size in mass cultivating Trichogramma sp. in laboratory. While for ield application, tempeature and hosl range arc Ihe factors should be considered.
PENGARUH DIAMETER PIRINGAN DAN ELASTISITAS KARET PENGUPAS TERHADAP KINERJA ALAT PENGUPAS LADA TIPE PIRINGAN HIDAYAT, TATANG; RISFAHERI, RISFAHERI
Jurnal Penelitian Tanaman Industri Vol 7, No 1 (2001): Maret, 2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n1.2001.11-17

Abstract

To produce while pepper using traditional method, the ripe berries are soaked in a river or a pond for 10-14 days prior to decorticating. To improve the traditional method. Research Institute for Spice and Medicinal Crops has designed pepper decorticator to support the white pepper processing. This decorticator has a good function, hut its performance still need to be improved, as it still produces high percentage of white pepper damage. This experiment was aimed to at improving (he performance of the pepper decorticator. The experiment was conducted from July to Ocktobcr 1999 and divided into two steps i.e. preliminary and main experiment. The treatments applied on Ihe main experiment were (I) disc diameter (18, 20, and 22 cm) and (2) rubber elasticity (5.34, 7.74, 9.79, and 15.02 N/mm). The experiment was designed as a completely randomized, arranged factorially in three replications. The pepper variety used for the experiment was Lampung Daun Lebar. The disc distance of pepper decorticator in this experiment was set at 3.5 cm based on the preliminary experiment. Results showed that the optimal disc diameter and nibber elasticity was 20 cm and 7.74 N/mm respectively. Decorticator performance on the optimal condition were : decorticated pepper 97.25%, white pepper damage as pepper defect 2.46% and as broken pepper 1.98% respectively and the capacity of decorticator was 42.27 kg/hours. In general, the quality of while pepper produced met the National Standard of Indonesia.

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