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INDONESIA
BERITA BIOLOGI
Published by Lembaga Ilmu Pengetahuan Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Arjuna Subject : -
Articles 12 Documents
 1   2 
Search results for , issue " Vol 15, No 2 (2016)" : 12 Documents clear
IDENTIFIKASI GEN / QTL (Quantitative Trait Loci) SIFAT TOLERAN CEKAMAN ALUMINIUM PADA GALUR-GALUR PADI GOGO [Identification of Gene/QTL (Quantitative Trait Loci) for Aluminium Stress Tolerant in Upland Rice Lines] Utami, Dwinita Wikan; Rosdianti, I; Yuriyah, S; Ambarwati, AD; Hanarida, I; Suwarno, Suwarno; Miftahudin, Miftahudin
BERITA BIOLOGI Vol 15, No 2 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i2.2276

Abstract

Program on the ability of agriculture to provide rice as a staple food tends to decrease with the reduced land area used for rice cultivation. improvement rice production should be directed to use  marginal land  as dry and acid land, where poisoning aluminium was seen as a constrain factor. Development of Aluminium (Al) tolerant variety is needed to increase rice production. This technology was environmentally friendly, cheaper and also easier for farmers adopted. The rice lines with broad genetics background which tolerant to Al toxicity has been produced by breeding program. The diversity of Indonesian local rice germplasm is a basic foundation on development of Al toxicity tolerant rice varieties. The purpose of this research was to analyze the genotype variety using 384 SNPs markers on selected Al tolerant rice lines based on bioinformatics approach. Based on the 384 SNPs markers, the total 26 selected  genotypes were clustered into 5 groups. Each group was having varied Relative Root Length (RRL), which was an Al tolerant parameter of phenotype. These groups were indicated for having different genes or QTL that were related to the Al tolerant character. The association analysis obtained 9 significant SNPs markers that can be applied as the molecular markers for assisting selection in breeding  program.
OXYGEN CONSUMPTION OF ROCK BREAM Oplegnathus fasciatus IN DIFFERENT SALINITY LEVELS AND TEMPERATURE DEGREES [Konsumsi oksigen Ikan Rock Bream Oplegnathus fasciatus pada tingkat salinitas dan suhu yang berbeda] Prakoso, Vitas Atmadi; Ryu, Jun Hyung; Min, Byung Hwa; Gustiano, Rudhy; Chang, Young Jin
BERITA BIOLOGI Vol 15, No 2 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2930.984 KB) | DOI: 10.14203/beritabiologi.v15i2.2303

Abstract

Rock bream Oplegnathus fasciatus is one of marine fish species with high commercial value in the region of East Asia. However, studies on the metabolism related to environmental factors for this species is still lacking. This study was therefore aimed to assess the effects of salinity and temperature on oxygen consumption (OC) of rock bream (TL: 26.9±0.6 cm, BW: 477.3±61.9 g) was observed by using respiratory chamber to understand the optimal salinity and temperature for culture of rock bream. Research was conducted in Pukyong National University, Busan, South Korea. Four experimental groups were conducted to measure oxygen consumption (OC) according to salinity (35, 25, 15, and 35?5 psu) and temperature changes (15?20?25oC). The results showed that low salinity exposures tend to decrease OC of rock bream (87.1, 78.3, 66.3, and 58.5 mg O2/kg/h at 35, 25, 15, and 5 psu, respectively). Meanwhile, the oxygen consumption of rock bream increased with increasing water temperatures (35 psu: 64.7, 104.0, and 175.9 mg O2/kg/h at 15, 20, and 25oC, respectively; 25 psu: 45.8, 101.7, and 185.9 mg O2/kg/h at 15, 20, and 25oC, respectively; 15 psu: 29.8, 103.3, and 155.5 mg O2/kg/h at 15, 20, and 25oC, respectively).

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