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BERITA BIOLOGI

berita_biologi
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Published by Lembaga Ilmu Pengetahuan Indonesia

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Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Articles 2,125 Documents

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STUDI BIOMETRI BERDASARKAN MERISTIK DAN MORFOMETRIK IKAN GURAMI GALUR BASTAR DAN BLUESAFIR [Biometrical Study Based on Meristic and Morphometric of Giant Gouramy Strain Bastar and Bluesafir] Radona, Deni; Nafiqoh, Nunak; Arifin, Otong Zenal; Arifin, Otong Zenal
BERITA BIOLOGI Vol 16, No 2 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Identification of Gouramy is required to obtain phenotype characteristics information of the population for sustainable aquaculture Â practices. In this study phenotype diversity of giant gouramy strain bastar and bluesafir was analyzed based on Â meristic and morphometric measurement. Sample, are taken from 30 individuals of each population. The result showed that there were differences in colour patterns between the two populations, bastar population had yellowish brown body and red fins, whilst bluesafir population had brown blackish brown body and fins. The canonical function of truss morphometric analysis on 21 characteristics showed the measurement distribution of that both populations were in different quadrants. The intrapopulation similarity index showed that population of strain bluesafir had higher genetic similarity (80%) with interpopulation similarity index of 23.3%, while the intrapopulation similarity index of strain bastar was 76.7%.

MIKROPROPAGASI SUKUN (Artocarpus communis Forst), TANAMAN SUMBER KARBOHIDRAT ALTERNATIF Supriati, Yati; Mariska, Ika; Hutami, Sri
BERITA BIOLOGI Vol 7, No 4 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Bread fruit (Artocarpus communis Forst) is one of tropical fruit, which has a high contain of carbohydrate.In certain area, it becomes an alternative staple food when the main staple foods are scarce.The amount of carbohydrate in breadfruit is almost the same with the one in sweet potato, but it is higher than in potato. The main constraint of the development of breadfruit is the limited of seedling availability.Tissue culture technique has been known for its excellent result for plant propagation, because this technique has ability in producing seedling in a large quantity, in uniform growth rate and in a relative short time.The experiment was conducted at Cell Tissue Culture Division, Indonesian Center Agricultural Biotechnology and Genetic Resource Research and Development (1CAB1OGRAD) from February 2003 until December 2004.There were some steps experiments with series of combination medium as treatments. The first steps was shoot multiplication at Sk-2 medium with WPM + BA (0; 0,5; 1,0; 1,5 and 2,0 mg/1) + Thidiazuron (0; 0,4 mg/1);The second step was elongation shoot at Sk-3 with WPM + kinetin (1,2 and 3 mg/1) + GAa(0 and 5 mg/1), and the third was root initiation and proliferation, by comparing WPM + IBA (0, 2, 4 and 6 mg/1) + charcoal (0;0,5 %) and WPM (1; 0,5) + BA (0; 1,5 and 5 mg.l) or NAA (1,2 and 3 mg/1). For the step of acclimatization, soil and compost were used in comparison of (1;1 and 1:2).The result showed that the best media for shoot multiplication of breadfruit was WPM + BA 2 mg/1 + TDZ 0 4 with shoot number of 15,5., while the best media for shoot elongation was WPM + Kinetin 1 mg/1 + GA, 5 mg/1.WPM + IBA 3 mg/1 was the best formula for root proliferation with the highest root number about 6.5 and percentage of shoot producing root about 60%. For acclimatization, soil and compost in combination of 1:1 was the best media for planlet of breadfruit with the success rate about 70%. Charcoal is not necessary in root initiation and proliferation.

KORELASIANTAR-KARAKTER DAN SIDIK LINTAS ANTARA KARAKTER AGRONOMIDENGAN HASIL KEDELAI {Glycine max (L.) Merrill} Hakim, Lukman
BERITA BIOLOGI Vol 10, No 6 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

A total of 27 soybean {Glycine max (L.) Merrill} genotypes including check variety (Kawi) were evaluated on dry land at Ngale Experimental Farm, Ngawi, East Java during early rainy season of 2009/2010. The experiment was conducted in a randomized complete block design with three replications. Plot size was 4 m x 5 m, plant spacing was 40cmx20cm, each hill contained two plants. A correlation and path coefficient analyses were used in order to determine the association among characters and quantify the direct and indirect effects of agronomic traits on seed yield. The study has identified 3 varieties, i.e. Kaba, Wilis and Tanggamus produced the highest yield (>1.6 t/ha) and had good adaptation on dry land. Two varieties (Grobogan and Argomulyo) having large seed size (>15 g/100 seeds), and four varieties,i.e. Tidar, Grobogan, Gepak Ijo and SHR-W60 had early maturity (81days). Therefore, these varieties can be used as source of parents on breeding program. Among the agronomic characters, plant height, number of pods per plant and harvest index were positively and significantly correlated with grain yield. The direct effect of plant height, number of pods per plant and harvest index to grain yield as indicated by path coefficient were the highest, while other causal effects to grain yield were small or negative. Based on both analyses, soybean genotypes with high grain yield should have sufficient plant height, high number of pods per plant and high harvest index. Therefore, plant height, number of pods per plant and harvest index can be suggested for selection criteria in selecting high yield soybean genotypes on dry land.

KEMAMPUAN BEBERAPA JAMUR TANAH DALAM MENGURAIKAN PESTISIDA DELTAMETRIN DAN SENYAWA LIGNOSELULOSA [The Ability of Some Soil Fungi on Degradation of Deltamethrin and Lignocelluloses] Subowo, YB.
BERITA BIOLOGI Vol 12, No 2 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Some of soil fungi capable in degrading pesticide deltamethrin, therefore they can be used as fertilizer in organic farming. As a biofertilizer ,fungus also must be able to provide nutrients for plants. The purpose of the study was to obtain fungal isolates that have the ability to decompose pesticides deltamethrin and lignocellulose compounds, dissolved inorganic phosphate compounds and produce growth hormone IAA (Indole Acetic Acid) . The fungal isolates will then be used in the manufacture of bio-fertilizers. Soil samples were put into mineral medium containing deltamethrin, fungus that grew on this medium would then be isolated. The ability of fungus in decomposing deltamethrin was observed using GC. While the ability of fungi to decompose lignocellulose, to dissolve inorganic phosphate compounds and to produce IAA was observed using a spectrophotometer. The results showed that the fungus Aspergillus niger TR1 had the ability to degrade 90.68% of deltamethrin 500 ppm after 1 h incubation and to degrade 0.46% of Poly R - 478 by after 30 min incubation. In addition, this fungus had cellulase activity of 0.029 units/ml and were able to dissolve inorganic phosphate compounds and produce IAA.

PENGARUH PEMBERIAN ELISITOR EKSTRAK KHAMIR Saccharomyces cerevisiae Hansen TERHADAP KANDUNGAN AJMALISIN DALAM KULTUR AGREGAT SEL Catharanthus roseus (L.) G. Don. Ratnasari, Jujun; Siregar, Arbayah H; RE, Rizkita
BERITA BIOLOGI Vol 5, No 4 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

There were many ways to obtain high production of secondary metabolites in plant tissue culture; among the other is elicitation.An experiment to study the effect of elicitor derived from Saccharomyces cerevisiae Hansen extract on ajmalicine content in cell aggregates culture of Catharanthus roseus (L.) G.Don, has been conducted. The media used for callus induction and cell aggregates culture were Zenk 6 5(1977) with addition of 2.5 x 10" M Naphthalene Acetic Acid (NAA) and 10 M 6-Benzilaminopurine (BAP).The cell aggregates culturewas subcultured three times and then elicitated with elicitor derived from autoclaved 5.cerevisiae extract at concentrations 0.5, 1.0, 2.5%,and harvested at 18, 24,and 36 hours after elicitation.The ajmalicine was analyzed qualitatively and quantitatively by using High Pressure Liquid Chromatography (HPLC) connected to chromatopack CR-7A Plus. The cell aggregates of C. roseus culture produced ajmalicine both in the cells and the media.The result of elicitation showed that ajmalicine content was influenced significantly by concentration and harvesting time. The highest ajmalicine content in the cell aggregates was 25.288 Â± 0.102 jig/g dw, whilst that in media was 524.600 Â± 0.566 \ML. The optimum concentration of S. cerevisiae extract was 0.5%, and the best harvesting time was 24 hours.

KEANEKARAGAMAN JENIS BEGONIA (Begoniaceae) LIAR DI JAWA BARAT Girmansyah, Deden
BERITA BIOLOGI Vol 9, No 2 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

A taxonomic study of the wild genera of Begonia Blume {Begoniaceae) in West Java was conducted based on morphological characters. Nine known species (Begonia areolata Miq., Begonia isoptera Dryander, Begonia lepida Blume, B. longifolia Blume, B. multangula Blume, B. muricata Blume, B. repanda Blume, B. robusta Blume and B. tenuifolia Dryander) and one new species Begonia sp. was discovered. An identification key and information about potential uses of West Javas Begonia are described. Beside as ornamental plants, Begonia can be used for medicinal plant such as B. isoptera for spleen diseases.

DIVERSITAS DAN HILANGNYA JENIS-JENIS IKAN DISUNGAI CILIWUNG DAN SUNGAI CISADANE Hadiaty, Renny Kurnia
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The fish research in Indonesian waters has been begun since 16 century ago. Most of the research collected fish around Batavia.Many new species was described and the type specimens deposited at the museums in Europe or America.The study of fish diversity and the lost of fish species was conducted at River Ciliwung and R. Cisadane in 2009. The aim of this study is to describe the recent fish diversity in both river drainages, then make a comparison with the number of species recorded based on the references data.The differences between the two datas show the number of species lost. The result of the study showed a total of 20 species of 13 families were collected in R. Ciliwung, while from the references data there were about 187 species, so the fish diversity lost in the Ciliwung river about 92.5%. The fish research in R. Cisadane were collected 39 fish species of 24 families. There were 135 species of 38 families of the references data, so the fish diversity lost in R. Cisadane is about 75.6%.

BIOEKOLOGI IKAN SILUK IRIAN (Scleropages jardinii) DIKABUPATEN MERAUKE PROVINSI PAPUA Haryono, Haryono; Tjakrawidjaja, Agus Hadiat
BERITA BIOLOGI Vol 6, No 5 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Study on bio-ecological aspect of bony tongue (Scleropages jardinii) was done in Merauke, Papua Province on May 1997.The aims of this study are to know the aspects of reproduction, behavior, habitat, and conservation. The results recorded fecundity between 87 -161 eggs, fertility 45-84. This fish is a predator and carnivorous. Water quality is suitable for fish life as well as their reproduction. Conservation action is urgently important.

COOKING CHARACTERIZATION OF ARROWROOT (Maranta arundinaceae) NOODLE IN VARIOUS ARENGA STARCH SUBSTITUTION [Karakteristik Pemasakan Mie Garut (Maranta arundinaceae) Pada Variasi Subtitusi Pati Aren] Miftakhussolikhah, Miftakhussolikhah; Ariani, Dini; RNH, Ervika; Angwar, Mukhamad; Wardah, Wardah; Karlina, L Lola; Pranoto, Yudi
BERITA BIOLOGI Vol 15, No 2 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Arrowroot (Maranta arundinaceae) tuber has traditionally been used by Indonesian people as a source of carbohydrate in their food diet. It will be likely more preservable and flexible when the tuber is processed into flour as an alternative raw food material. Arrowroot flour should be mixed with other material that have high amylose content for making noodles, thus the noodles have good quality almost same as commercial product. The objective of this study was to investigate the effect of arenga starch substitution on the arrowroot flour noodle qualities including appearance, cooking, textural and sensory properties. Noodle was made with five variation of arrowroot flour and arenga starch composition i.e. 0:100, 25:75, 50:50, 75:25, 100:0. Characterization of noodle qualities and hedonic test of noodle were analyzed. The results show that arrowroot flour substitution affects noodle qualities such as color, brittleness, cooking time, cooking loss, swelling index, expantion ratio, tensile strength, elongation and stickiness. Noodles that have characteristic nearest to commercial products and the most favored product by panelists was the mixture of arrowroot flour 25: arenga starch 75.

NEGATIVE IMPACT OF FOREST DEGRADATION TO HERPETOFAUNA SPECIES RICHNESS IN KERINCISEBLAT NATIONAL PARK, SUMATRA [Dampak Negatif dari Degradasi Hutan Terhadap Kekayaan Jenis Herpetofauna di Taman Nasional Kerinci Seblat, Sumatra] Kurniati, Hellen
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Habitat loss and fragmentation are among the largest threats to herpetofauna diversity in tropical rain forest areas, including the rain forest in Kerinci Seblat National Park (KSNP). To measure the rate of negative impact to the herpetofauna population,fifteen survey sites with several degree of habitat disturbance were selected. Based on cluster analysis,15 survey sites were grouped into five distinct clusters, included low elevation forest group, high elevation group, swamp group, disturbed forest group and cultivated land group. Calculation of linier regression for four major (low elevation forest group, high elevation group, disturbed forest group and cultivated land group groups) showed that the rate of locally biodiversity losses were high (R2 > 0.7).

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