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Published by Pusbindiklat Peneliti LIPI

ISSN : - EISSN : 24610976 DOI : 10.14203

Aerospace Engineering Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics

Widyariset is a scientific journal which publishes the results of research and development, assessment, and systematic thinking about Natural Science.

Arjuna Subject : Umum - Umum

Articles 24 Documents

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Search results for , issue "Vol 14, No 2 (2011): Widyariset" : 24 Documents clear

CORRELATION AND PATH ANALYSIS ON PHENOTYPIC CHARACTERS OF DOUBLED HAPLOID RICE LINES Heni Safitri; Bambanng S. Purwoko; Iswari S. Dewi; Buang Abdullah
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

Grain yield improvement is the main objective in rice breeding programs. The objective of this study was to determine the phenotypic characters that have a direct or indirect effect on grain yield of double haploid lines. It expected can be used as selection criteria. The study was conducted on August 2009 at Cikeumeuh Bogor using randomized block design (RBD) with three replications. The materials used were 33 doubled haploid rice lines and three varieties/landraces rice. The results showed that number of productive tillers per hill, number of grains per panicle and 1,000 grain weight of rice can be used as selection criteria in improving grain yield. These three characters has a positive and very signiﬁ cant correlation, positive and high direct effect on grain yield, and havea high heritability value.

OPTIMIZATION CONDITION OF HYDROGENATION OF PALM KERNEL OIL IN TRANS FAT FREE COCOA BUTTER SUBSTITUTE PRODUCTION Hasrul Abdi Hasibuan
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

Production of trans fat free cocoa butter substitute by hydrogenation of palm kernel oil has been concluded. This research was undertaken by reaction of palm kernel oil and hydrogen using variation of pressure, catalyst and reaction time were 100 to 200 Psi, 0.05 to 0.25% and 1 to 5 hrs, respectively. The characteristic of CBS was determined i.e. content of trans fatty acid, stearic acid, melting point, iodine value and solid fat content. The result of analysis showed that increasing of pressure, catalyst and reaction time were simultaneously increase stearic acid composition, melting point, solid fat content and it was decrease iodine value and trans fatty acid content. The optimum condition was achieved at pressure 150 Psi, catalyst 0.1% and reaction time 3 hr.

CRITICAL STUDY OF COMMUNITY EMPOWERMENT BASED ON FOREST APPROACH IN ITTO VILLAGE MODELS CIAMIS REGENCY Tri Sulistyati Widyaningsih; San Afri Awang
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

This study aims to critisize the community empowerment approach conducted by International Tropical Timber Organization (ITTO) project in the villages model in Ciamis. This study use qualitative method. Datawere collected through interview, observation, and documentation. The result shows that the villages model tend to have the same stages of empowerment, the implementation of the approach using by ITTO project still far from the essence of empowerment because of one of selected group is a successfull group, the program carried out uniformly, top-down, and using manipulative participation. The critical solution suggested for the next similarproject, before the implementation, all stakeholders should have a common understanding about the appropriate approach of community empowerment.

OPTIMIZING UTILIZATION OF WATER IN VAN DER WIJCK IRRIGATION SYSTEM BY FUZZY LINEAR PROGRAMMING FOR FARMING SYSTEM Sukarjo Sukarjo
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

Van Der Wijck irrigation system was applied in Sleman and Bantul district of the Yogyakarta Special Province that has a 3,426.57 ha area. Van Der Wijck is a multipurpose irrigation system because water is used not only for growing crops, but also for sugarcane plantation and fi sh pond. Because the priority service is not clearly defi ned, confl icts among water users are easily occur. The aims of the study were (i) to compute and to predict the water availability both from rainfall and river fl ow, and (ii) to determine the use of the water in order to obtain optimum area of fi sh pond, sugarcane plantation, and other crops passed on discharge availability, seasonal water require-ment, and farm profi t. The results showed that the optimum areas for fi sh pond 17.2 ha and rice fi eld 3,309.57, 2,409.57, and 1,909.57 ha for planting season I, II, and III, respectively. The optimum areas for sugarcane are 35 ha, which is exchangeable with rice area. The optimum area of upland crops for planting season I, II, and III are 100, 1,000, and 200 ha, respectively.

PHOSPHORUS CONTENT IN THE LOWLAND RICE (Oryza sativa L.) DERIVED FROM P-FERTILIZER AND ORGANIC MATTER Aisyah D. Suyono; Ania Citraresmini
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

A pot experiment was conducted at the experiment station PATIR – BATAN, in order to determine phospho-rous content derived from P-fertilizer and organic matters in paddy ﬁ eld, both quantitatively and qualitatively. In the experiment, factorial pattern of Randomized Group Design with 3 replication was used. The ﬁ rst factor was the dose of SP-36 with four doses, which were 0, 30, 60, and 90 kg ha/SP-36. The second dose was organic fertilizer with four doses, which were 0, 5, 10, dan 15 ton/ha. 32P isotope technique with A-value methode was used to determine the absorption of P by the plants in order to establish the composition of P derived from the soil, 32P, SP-36 and organic fertilizer. The results of the experiment proved that an increase in the P content from one of the P sources caused a decrease in the P content from other P sources.

EFFECT OF MIXING THE CALF FECES WITH COASTAL SANDYSOIL ON THE GROWTH OF CORN PLANT (Zea mays) Agung Prabowo; Soemitro Padmowijoto; Zaenal Bachruddin; Abdul Syukur
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

This research was intended to determine the effect of combination calf feces and coastal sandy-land on the growth of corn plant. This experiment was arranged in a 2x3x2 factorial pattern of completely randomized design. First factor was calf feces of with and without microbe treatment, second factor was three levels of feces incubation which were 0 day (I-0), 20 days (I-20), and 40 days (I-40), and third factor was fecal dosages of 15 ton/ha (D15) and 30 ton/ha (D30). Parameters of plant height, dry, and wet weight of roots and vegetative, chemical and physical properties of mixture of calf feces and coastal sandy-land were observed. The plant height was observed weekly. There was a signiﬁ cant difference (P<0.05) on combination of feces without and with microbe treatment,fecal incubation time and dosage on the plant height. There was a tendency of increasing fecal dosage and fecal incubation time on the increase of plant height. This study suggests that calf feces could improve the corn plant growth in coastal sandy-land.

PHYSICOCHEMICAL AND ORGANOLEPTIC CHARACTERISTICS OF RED GUAVA (Psidium guajava L.) JUICE INSTANT DRINK POW- DER PRODUCED USING FOAM-MAT DRYING METHOD Sandi Darniadi; Iyan Sofyan; Dede Z. Arief
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

Powder product as instant drink from red guava (Psidium guajava L.) juice is more practicable to increase economic value. The objective of the research was to investigate physicochemical and organoleptic characteristics of red guava juice instant drink powder produced using foam-mat drying method. The results showed that red guava juice instant drink powder produced using foam-mat drying method had high yield with solubility was low, the brightness was high, the level of redness was high, the level of yellowish was low, sugar was high, and sensory properties were accepted by panelist.

PERFORMANCE OF FEMALE DUCKLING WHICH MAINTAIN BASED ON SMALL, BIG AND MIXED GROUPS OF HATCHING WEIGHT Komarudin Komarudin; Rukmiasih Rukmiasih; P.S. Hardjosworo
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

This research was conducted to determine the effect of maintain method based on small, big and mixed groups hatching weight on performance at the age of six weeks. 122 female Day Old Duck (DOD) were used. The ducks were partitioned based on hatching weight. DOD with more than 42 g was classiﬁ ed as a big group and less or equal to 42 g were classiﬁ ed as small group. Mixed group was taken from those two groups randomly. Feed consumption and conversion, growth and weight of ducks at the age of six weeks were measured. The research used Random Group Analysis. The result showed signiﬁ cant different (P<0,01) of growth and the weight. Feed consumption and conversion of each groups (small, big and mixed) did not showed the differences (P>0,05).Separated maintain method duck based on hatching weight (small and big groups) did not give better performance than mixed group method.

THE ECONOMICAL FEASIBILITY OF SOYBEAN FARMING WITH THE INTEGRATED CROP MANAGEMENT (ICM): CASE STUDY AT NIMBOKRANG DISTRICT JAYAPURA Pandu Laksono; Adnan Adnan
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

The objective of this research was to determine the economical feasibility of soybean farming with the Integrated Crop Management (ICM) approach. This research was conducted in April–December 2009 and took place in Nimbokrang District, Jayapura Regency, Papua Province. Integrated Crop Management components were the use of high yield seeds (Ijen, Burangrang, Tanggamus, Seulawah), perfect soil tillage, balanced fertilizer and spacing. The research involved two cooperative farmers which apply ICM method and one non-cooperator farmer who apply the farmers system, using Ijen variety that are already common planted by local farmers. The results showed that the variety of Ijen with ICM method obtained the highest yields 2.15 tonn/ha with B/C ratio was 1.47,whereas Burangrang yields was 1.89 tonn/ha with B/C ratio 1.24, Tanggamus yields was 1.68 tonn/ha with B/C ratio 1.04 and Seulawah yield was 1.28 tonn/ha with B/C ratio 0.64. All of the varieties cultivated by the ICM method were feasible except Seulawah. Soybean farming using Ijen, Burangrang and Tanggamus varieties were feasible to develop with MBCR value of Ijen is 2.47, Burangrang 2.24, and Tanggamus 2.04.

JAVA COASTAL CURRENT AT NORTHWEST AND SOUTHEAST MONSOON IN SOUTHWEST SUMATRA La Ode Nurman Mbay; I Wayan Nurjaya
Widyariset Vol 14, No 2 (2011): Widyariset
Publisher : Pusbindiklat - LIPI

The Java Coastal Current (JCC) is valuable information since its supplies water mass to South Indonesian water. The data analysis was done using temperature, salinity and depth informations from CTD (Conductivity, Temperature, and Depth). Those informations was calculated based on Neuman and Pierson (1966) with 600 db in reference level, in order to obtain the dynamic topography and geostrophy velocity. The results showed that there was a dynamic depth divergence between shore and the off shore, both was occured in Northwest monsoon and Southeast monsoon. Hence it was acting as a trigger of the geostrophy current toward Southeast with maximum velocity was 18.81 cms -1 and 1.53 sv of transport volume.

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Contact Name Andri Rahman

Contact Email andri.agus.rahman@lipi.go.id

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Editorial Address Pusbindiklat LIPI, Jl. Raya Bogor Km. 46, Cibinong Science Center, Cibinong - Bogor 16911

Location Kab. bogor, Jawa barat INDONESIA

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Contact Name
Andri Rahman

Contact Email
andri.agus.rahman@lipi.go.id

Phone
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Journal Mail Official
widyariset@mail.lipi.go.id

Editorial Address
Pusbindiklat LIPI, Jl. Raya Bogor Km. 46, Cibinong Science Center, Cibinong - Bogor 16911

Location
Kab. bogor,

Jawa barat

INDONESIA