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Widyariset

widyariset
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Published by Lembaga Ilmu Pengetahuan Indonesia

ISSN : 14117932 EISSN : 24610976 DOI : -

Core Subject : Engineering,

Engineering

Widyariset is a scientific journal which publishes the results of research and development, assessment and systematic thinking about science and technology. The writers of the scientific papers in this journal come from researchers/researcher candidates from various institutions' research and development (R&D), and universities. Widyariset is published regularly three times a year: in April for the issue of Social Sciences and Humanities (IPSK), in August for the issue of Natural Sciences (IPA) and in December for the issue of Engineering Sciences (IPT).

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Articles 10 Documents

Search results for , issue "Vol 3, No 2 (2017): Widyariset" : 10 Documents clear

NUTRIENT CONTENT IMPROVEMENT OF TAPIOCA WASTE AND RICE BRAN AS INGREDIENTS TROUGH FERMENTATION USING Azospirillum sp. JG3 Tati Febrianti; Oedjijono Oedjijono; Ning Iriyanti
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Azospirillum sp. JG3 is known to be able to grow in a mixture of tapioca waste and rice bran through fermentation. However, improved the nutrient content of tapioca waste and rice bran using Azospirillum sp. JG3 is not yet known. This research aimed to know the capability of Azospirillum sp. JG3 in improving thenutrient content of tapioca waste and rice bran mixture and incubation times needed to produce the highest nutrient mixture. The method used in the experiment was Completely Randomized Design (CRD). Treatments were incubation times i.e. 0, 3, 4, 5, 6, and 7 days, and each treatment was replicated three times. Azospirillum sp. JG3 is inoculated into a mixture of tapioca waste and rice bran. As results, Azospirillum sp. JG3 was able to improve the nutrient content of tapioca waste and rice bran in five days fermentation. A significant increase in protein content (29,15%) and a decrease in crude fiber (36,63%) were recognized when tapioca waste and rice bran are fermented with Azospirillumsp. JG3 compared to non-fermented one.

DIVERSITY, DISTRIBUTION, AND UTILIZATION OF ORCHIDS SPECIES (Orchidaceae) IN BODOGOL FOREST, GEDE PANGRANGO NATIONAL PARK, WEST JAVA Asep Sadili; Siti Sundari
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

To investigate the diversity, distribution, and utilization of orchid, a study was conducted in Bodogol forest of Gede Pangrango National Park (TNGP). Around 82 species of 41 genera of orchids were identified in this area which consisted of 58 species of epiphytes orchids and 24 species of terrestrial orchids. The genera of Agrostophyllum, Dendrobium, and Eria were the most commonly found orchid in this area. Distribution of orchid species varied from India to Pacific islands, including Japan. Among recognized six endemic orchid species of Java island, two new records of orchids at GPNP were determined, i.e. Neuwiedia veratifolia and N. zollingeri var. javanica. In general, the orchids in Bodogol forest have not been economic commodities priority yet, but several species were potential to be developed for utilization.

CATCH AND RELATIVE ABUNDANCE OF SOME SHARKS LANDING IN TANJUNG LUAR, LOMBOK Agus Arifin Sentosa; Dharmadi Dharmadi
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Tanjung Luar is the center of shark fisheries in Indonesia because it has more shark catches than any other fish landing places in Indonesia. The aims of this study were to present the catch characteristics and the relative abundance of some sharks landing in Tanjung Luar, Lombok. Data were obtained through the interview with enumerators and from their daily monitoring record on the shark landing at Tanjung Luar, East Lombok during eleven months period from January to November 2015. Data statistics were calculated descriptively and presented as a percentage of relative abundance. The result shows the shark caught in 2015 has fluctuated monthly with the peak of catch occurred on September 2015. Total shark caught were about 237.5 tonnes and average landing per day was 1.4 tonnes. Species composition of overall catch comprised of 28 species which belong to 11 families. Among those species, Silky shark/Carcharhinus falciformis (42.06%), Blue shark/Prionace glauca (10.45%) and Blacktip shark/Carcharhinus limbatus (10.31%) were predominant as indicated having relative abundance more than 10%.

PEDOTRANSFER FUNCTIONS FOR DIGITAL SOIL MAPPING IN TROPICAL REGION: A CASE STUDY OF DIGITAL SOIL MAPPING OF SOIL CARBON AND NITROGEN IN WEST JAVA, INDONESIA Setyono Hari Adi
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Pedotransfer functions (PTFs) for the tropical region were developed to model topsoil total carbon and nitrogen variations, by using input parameters of Digital Elevation Model—DEM, Normalized Difference Vegetation Index—NDVI and bioclimatic variables. Puerto Rico dataset was used to develop the model, while West Java, Indonesia was chosen for the model application. Using 22 input parameters derived from the three soil forming factors (relief, vegetation, and climate), the PTF could explain 71% and 66% of the soil total carbon and nitrogen variations, while comparable results were obtained from reduced input parameters (RMSE 3.12% and 0.05% for topsoil total carbon and nitrogen, respectively). This result suggests that application of PTFs to model soil properties variation, especially in the tropical region, could be used to generate reliable pre-assessment information to support decision making in the land productivity improvement plan.

Abstrak Inggris admin admin
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

ESTIMATION OF HERITABILITY AND BREEDING VALUE OF PIGLET BIRTH WEIGHT Bayu Dewantoro Putro Soewandi; V. M. Ani Nurgiartiningsih; Kuswati Kuswati
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Piglet birth weight has an economic value and commonly correlated with weaning weigh. Therefore, birth weight traits of piglet needs to be selected for genetic improvement. The purpose of a study was to estimate the genetic improvement of piglet birth weight based on heritability and breeding value. Around 154 heads of offsprings generated from 6 sires and 14 sows were used in this study. The data of piglet birth weight was analyzed for heritability (nested classification), breeding value, selection response, and genetic improvement estimation. The result showed that the heritability (h2) of offsprings was 0.24±0,15. Based on breeding value, sires which had high piglet birth weight can be used for male ranking. Selection of response value was 0.06 kg. According to the selection of response value, improvement of birth weight in piglet based on the sire used can be estimated.

THE EFFECT OF MULBERRY TYPES ON THE PRODUCTIVITY OF COCOON OF TWO Bombyx mori L SILKWORM HYBRIDS Lincah Andadari; Minarningsih Minarningsih; Rosita Dewi
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Mulberry (Morus sp.) is the only food for silkworm of Bombyx mori L and larvae that is fed with highly nutritious mulberry leaves will have more resistant to disease and able to produce the better cocoon. The study was aimed to determine the effect of mulberry SULI 01, ASI, and Morus cathayana as feedingmaterials for cocoon production from PS 01 and C 301 silkworm hybrids. The study was arranged in Block Randomized Design, with a factorial design of three type of mulberry’s leaf and two hybrids of silkworm. Feed setup and maintenance of a silkworm cocoon until harvest time was carried out at Cipeuteuy village, Kabandungan, Sukabumi district. The determined parameters were rendement of rearing, the weight of cocoon, the weight of cocoon shell, and cocoon shell percentage. The result showed that rendement of rearing to all treatment was not significantly affected, in which all treatment showed average percentage above 90%. The treatments combination of ASI mulberry and PS01 silkworm hybrid gave the best result for parameters of rendement rearingaround 96.6%, the weight of cocoon 1.78 g, and the weight of cocoon shell 0.37 g, while cocoon cell percentage is around 21.18%. The result of a combination between SULI 01 and PS 01 is rendement rearing around 95.20%, the weight of cocoon 1.6 g, the weight of cocoon shell 0.34 g, and cocoon shell around 21.47%.

Abstrak Indonesia admin admin
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

EVALUATION OF THE EXISTENCE OF Shorea platyclados Slooten ex Endert IN THE BUKIT DAUN PROTECTED FOREST Marfuah Wardani; Adi Susilo
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Study on the evaluation of the existence of Shorea platyclados Slooten ex Endert (meranti bukit, meranti gunung, meranti tenam) on its natural habitat was conducted on May 2014 in Bukit Daun Protection Forest, Central Bengkulu District, Bengkulu. Exploration and inventarisation were designed in a semi-permanent plot, in which S. platyclados is used as the center of circle plot for vegetation analysis. Results showed that the distribution of S. platyclados is clump on steep valley, with its altitude is in between 400 – 600 m asl. Shorea platyclados was a dominant species on tree stage with good regeneration in all stage with IVI = 88.00%. Pole stages were dominated by Lindera subumbelliflora (Blume) Kostermans with IVI =10.58%, and seedling stage was dominated by Syzygium cymosum DC. with IVI =7.48%. The existence of S. platyclados in Bukit Daun Protected Forest, Central Bengkulu District was not endangered.

GROWTH VARIATION OF SEVERAL POPULATION SOURCES OF Alstonia scholaris (L.) R. Br AT THREE YEARS OLD IN GUNUNG KIDUL Mashudi Mashudi
Widyariset Vol 3, No 2 (2017): Widyariset
Publisher : Pusbindiklat - LIPI

Alstonia scholaris (L.) R. Br is a local species with a broad distribution and has a fairly high economic value. This study was aimed to determine the growth variation of Alstonia scholaris (L.) R. Br from several population sources at three years old in Gunung Kidul, Yogyakarta. The experimental design used was randomized complete block design (RCBD) with two factors, namely the population sources (Lombok, Jayapura, Solok, Timor, and Bali) and parent trees (48 parent trees). In this study parent trees nested in the population sources. Each parent trees planted four trees per plot, four replicates (blocks) with a spacing of 4 x 2 m. Results of variance analysis showed that the population sources significantly influenced by survival rates, the height of growth and stem diameter, and then parent trees affected considerably to the height of growth and stem diameter. The best survival rates were occupied by the Lombok population (93.32%), Bali population (91.96%), and Timor population (89.06%). The best height of growth was occupied by Lombok population (3.04 m) and Bali population (2.88 m), and for stem diameter was Lombok population (5.92 cm). There were seven best parent trees in the height of growth in a range between 3.25 to 3.72 m and 19 best parent trees in the growth of stem diameter ranging from 5.82 to 7.28 cm.

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Pusbindiklat Peneliti-LIPI (The National Training and Education Center for Researchers Development – Indonesian Institutes of Sciences) Jl. Raya Bogor Km. 46, Cibinong Science Center Cibinong - Bogor 16911

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Editorial Address Pusbindiklat Peneliti-LIPI (The National Training and Education Center for Researchers Development – Indonesian Institutes of Sciences) Jl. Raya Bogor Km. 46, Cibinong Science Center Cibinong - Bogor 16911

Location Kota adm. jakarta selatan, Dki jakarta INDONESIA

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Contact Name
-

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-

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

Editorial Address
Pusbindiklat Peneliti-LIPI (The National Training and Education Center for Researchers Development – Indonesian Institutes of Sciences) Jl. Raya Bogor Km. 46, Cibinong Science Center Cibinong - Bogor 16911

Location
Kota adm. jakarta selatan,

Dki jakarta

INDONESIA