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JURNAL SAINS DAN TEKNOLOGI INDONESIA

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Search results for , issue "Vol. 8 No. 1 (2006)" : 9 Documents clear

PEMBIBITAN SECARA STEK-MINI TANAMAN MELATI [Jasminum sambac (L.) Aiton] Handayani, Titin
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The experiment aimed at maximizing the speed growth and number of plants obtained by the mini-steck of jasmine (Jasminum sambac (L.) Aiton) cv. Emprit. Changes in benzylaminopurine (BAP), indolebutiric acid (IBA), and “rooton” concentration.were evaluated. Branchs were used as the plant material source, which consisted of axillary buds obtained after careful excision of the leaves. The following treatments were tested: solid media (soil : sand = 1 : 1) with different BAP concentrations (0.1, 3 and 5 mg/kg), IBA (0, 100, 200 and 300 ppm/kg), and “rooton” (0, 100, 200 and 300 ppm/kg) The results showed that shoots growth slowly in the media suplemented with BAP, however, IBA 200 ppm/kg media is better. Rooton with 300 ppm/kg media showed best results for rooting induction.

PENGARUH PENANGANAN PASCA PANEN TERHADAP MUTU KOMODITAS HORTIKULTURA Samad, M Yusuf
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Postharvest technologies are needed for horticultura commodities because its perishable characteristic. The technics are included cleaning, curing, sorting or grading, degreening, packing, and cooling. Especially in cooling application, there are two variables influenced characteristic of product i.e temperature and hummidity. Temperature of 0-7 ºC and hummidity of 90-95% are recommended to be used because very effective to decrease of water losses, material dextructive of bacterial, growth root, respiration, texture and color changing.

KETAHANAN ALAMI BEBERAPA GENOTIPE CABAI (Capsicum annuum L.) TERHADAP PENYAKIT ANTRAKNOSA Suryotomo, Bambang
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The objective of this reseach was evaluated the Resistance of four Hot pepper to antracnose on pre harvested and (2) evaluated the best method to needed inoculated of the resistance antracnose and (3) to findthe superior genotipe of resistance antracnose. The research was conducted in the Greenhouse of the Departement of agronomy and Laboratory of the Departement of Plant Pest and Disease, Faculty of Agriculture, Bogor Agriculture University, until 12 mount. Resistance evaluation evaluation on pre-harvesting fruits was done in the Greenhouse with “spray” inoculation method of 106 spore/ml Colletotrichum gloeosporioides suspension at flowering stage and fruit-set stage. The research were set in a Factorial and Completely Randomized Design with four replication and five plants per experimental unit. The genotipes evaluated were UPM, Tit Super, Yogya and Jatilaba. Observations were done on disease sevarity, disease incidence and percentage fruit damage. The results showed that resistance level of all genotypes were lower when inoculated at fruit-set stage compared to at flowering stage. The best method of evaluation for resistance to antracnose on hot pepper was the Greenhouse test inoculation at fruit-set stage with variable of disease incidence. All genotipes tested were considered very susceptible to Colletotrichum gloeosporioides (Antracnose).

UJI PUPUK (NPK dan EMAS) DAN ZAT PENGATUR TUMBUH (ATONIK dan ETHREL) TERHADAP PERTUMBUHAN VEGETATIF TANAMAN LADA (Piper nigrum L) Djamhari, Sudaryanto
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The objective of the research is to know the effect of using NPK (Nitrogen-Phosphor-Potassium) fertilizer and EMAS (Enhancing Microbial Activities in the Soil) biofertizers combined with GRS (Growth Regulating Substances) to the vegetative growth of young pepper plants. The research used Complete Randomized Design with One Way Analysis of Variance, Regression, and Correlation in order to know the effect of treatment to the vegetative growth of young pepper plants. The research was carried out in Sukahati Village, Cibinong District, Bogor Regency, West Java Province, during three months from July to October 2001.The results of the research showed that the use of NPK fertilizer (with dosage 2,5 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 13,0 cm or 17,4 % and 12,5 cm or 16,8 % respectively. The use of EMAS biofertilizer (with dosage 2,5 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 21,2 cm or 28,5 % and 18,1 cm or 24,3 % respectively. Moreover, the use of NPK fertilizer (with dosage 5,0 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 22,2 cm or 29,8 % and 20,3 cm or 27,2 % respectively. The use of EMAS biofertilizer (with dosage 5,0 gr/plant) combined with GRS Atonik and Ethrel will increase the vegetative growth of young pepper plants significantly to a high of 28,2 cm or 37,9 % and 26,6 cm or 35,7 % respectively.

ANALISIS USAHATANI TEBU DI LAHAN TEGALAN KASUS DI KABUPATEN BONDOWOSO Mulyono, Daru
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

The objectives of the research are to know the description of sugarcane enterprise especially concerning with coat and income, to know the sugarcane practice as a guide to farmers within their enterprise, and to increase input guarantee of raw material to sugarcane factory. The research was carriedout through gathering primary data by using questionaire with farmers as respondents. The respondents were selected by method of Stratified Purposive Random Sampling. The field survey was done in Bondowoso Regency, from 24th August untill 7th September 2004. The data was analyzed by using: hypothesis testing, break even point analysis, and sensitivity analysis. The results of the research show that the average of net farmers income from new planted sugarcane reach to a high of Rp. 4,507,584,-/year whereas from ratoon sugarcane reach to a high of Rp 3,272,307,-/year. The recommendation for sugarcane self sufficiency is by using productive arid land especially in Java with optimally agricultural inputs and cultivate according to standard operational procedure.

PROTOKOL KULTUR EMBRIO SIGOTIK KELAPA KOPYOR sukedah, sukedah; Djajanegara, Ira N.; Makhziah, Makhziah
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

In effort to get the true-to-type “Kopyor” coconut (matured coconut with broken meat particles due to abnormal formation of endosperm), the only way is inoculate the embryo in synthetic media under in vitro condition. A protocol of coconut embryo culture was established for “Kopyor” coconut grown in East Java through testing a number of media protocols and adding auxin IBA for rooting. The media protocols tested consisted of Y3 (Eeuwens) and MS (Murashige & Skoog) basal media, i.e. Protocol I (UPLB/Philippiness) as a control, Protocol II with a series of solid media Y3 (solid Y3 in germinating phase; solid Y3 in subculture I,II,III and solid Y3 in subculture IV), Protocol III with a series of solid media Y3 in germinating phase; solid Y3 in subculture I,II,III ; and liquid Y3 in subculture IV, Protocol IV with a series of solid media MS (solid MS in germinating phase; solid MS in subculture I,II,III; solid MS in subculture IV), and Protocol V with a series of liquid media MS in germinating phase; solid Y3 in subculture I,II,III; liquid Y3 in subculture IV. The growth of Kopyor coconut embryo was very fast in media Protocol II (a series of solid media Y3) and forming prefect plantlet higher than others. The alternative protocol that could give a positive result was Protocol III, this protocol showed a plantlet good rooting. Growth regulator IBA could induce primary root of kelapa kopyor plantlets. The effective concentration to stimuli lateral root of kelapa kopyor plantlet was 2 ppm IBA.

TEKNOLOGI IRIGASI TETES Ã¢â‚¬Å“RO DRIPÃ¢â‚¬Â UNTUK BUDIDAYA TANAMAN SAYURAN DI LAHAN KERING DATARAN RENDAH Kasiran, Kasiran
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Key success of cultivation vegetable crop in lowland is gift irrigate and the manure which enough. The other side of dissimilar lowland of generally owning water source limited and its land ground less be fertile, this represent constraint. Technological of drip irrigation “Ro Drip” representing one of solution alternative for the solve water limitation problem, becouse this technology can arrange exploiting irrigate efficient considerably. Technologically this the water can be given to crop droppedly for the shake of its volume and drip is organizable according to requirement.

ANALISIS MARKA MORFOLOGI DAN MOLEKULER SIFAT KETAHANAN KEDELAI TERHADAP INTENSITAS CAHAYA RENDAH Handayani, Titin; Sastrosumarjo, Sarsidi; Sopandie, Didy; Suharsono, Suharsono; Setiawan, Asep
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Availability of moleculer marker to identify the important agronomic character of plant is needed to accelerate selection activity of plant. Particularly for the complex quantitatively inherited traits - like e.g. shading tolerance of soybean - the use of such a technique will speed up the process to produce adapted genotypes.The objective of this research is to identify the linkage of molecular marker RAPD with character of shading tolerance. The morphological specific characters wich is corelated to shade tolerance is the number of productive branchs. The intensity 75% of artificial shading is optimal level for doing selection of soybean genotypes. The inheritance of shading tolerance of soybean was controlled by gene with full dominant or by two genes pairs with dominant and ressesive epistasis. There was no maternal effect in the inheritance to shade tolerance. Heritability value (0.45 – 0.54) indicated that the proportion variation caused by the genetic factors was moderate. Molecular analysis by using RAPD technique showed that UBC153, ROTH 480.01, and ROTH 480.03 primer have polymorphic band that can be used for inheritance study and linkage analysis. All polymorphisms segregated independently of each ather. Interval mapping with Mapmaker/QTL indicated that the location of the three QTLs on linkage group were at marker tolerance locus of Roth 480.01-8125 , Roth 480.03-1125, and UBC 153-19125 .

PENGARUH RADIASI SINAR GAMMA TERHADAP KULTUR IN VITRO TANAMAN JAHE Devy, Lukita; Sastra, Dodo R
Jurnal Sains dan Teknologi Indonesia Vol. 8 No. 1 (2006)
Publisher : Badan Pengkajian dan Penerapan Teknologi

In vitro shoot explants of white ginger and red ginger are irradiated by two different techniques. The first, the tuber explants are irradiated by 2 levels of gamma rays namely 10 and 30 Gy. The second, the shoot explants are irradiated by 2 levels of gamma rays namely 7,5 and 12,5 Gy. The irradiated explants are regenerated on modified MS medium with BAP 2 ppm and NAA 0,25 ppm. The result show that the irradiated tuber explants with 10 and 30 Gy could not initiate new regenerant of ginger. On the other hand the irradiated shoot explants with 7,5 and 12,5 Gy have been able to influence the growth and development of shoot, leaf and root. It is indicated that the level of gamma rays irradiation on shoot explants influences the induced putative mutant of ginger. However, the sprouting of red ginger on 12,5 Gy is higher and faster than 7,5 Gy, and white ginger as well as control. The other morphological characters have not been able to be identified, the experiment are still in process to detect the mutagenic influences.

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