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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 16, No 2 (2017)" : 12 Documents clear
PERBANYAKAN VEGETATIF BIDARA UPAS (Merremia mammosa (Lour.) Hallier f) KEBUN RAYA BOGOR [Vegetative Propagation of Bidara Upas ( Merremia mammosa (Lour.) Hallier f)) at Bogor Botanical Garden] Cahyaningsih, Ria; Hidayat, Syamsul; Hidayat, Endang
BERITA BIOLOGI Vol 16, No 2 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3299.561 KB) | DOI: 10.14203/beritabiologi.v16i2.2284

Abstract

Bidara upas (Merremia mammosa (Lour.) Hall.f.) is a medicinal plant, , that traditionaly use by Indonesian and Malaysian people. Regarding Indonesia Biodiversity Strategy and Action Plan released by The National Development Planning Agency, it is included in the extinct medicinal plant list (2003). As the center for plant conservation, Bogor botanical garden conducted vegetative propagation study on this plant by air layering, cutting, and tuber cutting. The aim to this study is to find effective for bidara upas which method is vegetative propagation. Air layering and cutting propagation modified by Rootone-F did not give any result, whereas tuber cutting propagation with GA3 gave positive result. Principally, propagation by tuber cutting modified by 50 ppm of GA3 dose gave the most rapid and highest uniformity on shoot emergence, the best on growing variables, namely average height of shoot growing, the number of secondary roots, the number and length of the primary roots. It cannot be concluded yet that propagation by tuber cutting modified by GA3 was the most effective. Hence, it is necessary to conduct another propagation studies of air layering and cuttings with more variants of treatments, especially Rootone-F dose.
HERITABILITAS DAN PEROLEHAN GENETIK PADA BOBOT IKAN NILA HASIL SELEKSI [Heritability and Genetic gain on Weight of Tilapia Resulted Frown Individual Selection] Nugroho, Estu; Mayadi, Lalu; Budileksono, Sigit
BERITA BIOLOGI Vol 16, No 2 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3300.024 KB) | DOI: 10.14203/beritabiologi.v16i2.2689

Abstract

Directional-individual selection on tilapia growth had been conducted in West Nusa Tenggara Province. The base population had been constructed through di allele crossing between six tilapia strains i.e. NIRWANA, BEST, SULTANA, Citralada, JATIMBULAN and White Sleman. A total of 150 brood stock pairs were used for spawning with the ratio of female and male parent 1: 1 in net with size of 1x1x1 m. Two hundred larvae  produced from each spawn pairs were communally reared in a pond for three months. Directional-individual selection was conducted at the size of > 50 grams. The cut-off for minimum selected fish was based on the lowest individual weight of 10% top population. The average value of heritability on body weight was 0.251 for males and 0.258 for the female population. The total value of genetic gain of body weight for four generations was 51.68% for male population and 56.78% for the female population.

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