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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 34 Documents
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Search results for , issue "Vol 10, No 1 (2010)" : 34 Documents clear
FLOWERING PHENOLOGY AND FLORAL BEHAVIOR OF Scutellaria discolor Colebr. AND S. slametensis Sudarmono & B.J. Conn (Lamiaceae) [Fenologi dan Perilaku Pembungaan pada Scutellaria discolor Colebr. dan 5. Slametensis Sudarmono & B.J. Conn (Lamiaceae)] Sudarmono Sudarmono
BERITA BIOLOGI Vol 10, No 1 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i1.2057

Abstract

The flowering phenology and floral behavior of Scutellaria discolor and S. slametensis were investigated. S. discolor is distributed over a wider range of habitats but S. slametensis is distributed over a restricted area on Mt. Slamet. Observations of flowering phenology and floral behavior were almost the same and pollination of cleistogamous flowers did not occur in both species.Based on our observations on floral and pollinator behavior, we consider both S. discolor and S.slametensis to have chasmo- and cleistogamous flowers.
KEANEKARAGAMAN Begonia (BEGONIACEAE) DARI KAWASAN GUNUNG WATUWILA DAN GUNUNG MEKONGGA, SULAWESI TENGGARA Deden Girmansyah
BERITA BIOLOGI Vol 10, No 1 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i1.2048

Abstract

A taxonomic study of the genus Begonia Blume (Begoniaceae) in South East Sulawesi (Mt. Mekongga and Mt. Watuwila) were conducted based on morphological characters. Six species of Begonia were discovered. Three previously known species (Begonia aptera Blume, B. flacca Irmschr. and B. hispidissima Warburgh.), two new species and one variety were proposed and on going for publication. Some colour pictures were displayed and potential uses of each species are presented.
ESTIMASI MATERNAL HETEROSIS UNTUK BOBOT BADAN PADA POPULASI DOMBA SINTETIK Benny Gunawan
BERITA BIOLOGI Vol 10, No 1 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i1.2053

Abstract

An experiment was conducted to evaluate the performance of production traits of the synthetic population of Border Leicester x Merino crossbred. A comparison was made between the F2, F2.5, F3 generations ( synthetic population ) and Fl generation. Estimates the effects of maternal heterosis in the synthetic populations of Border Leicester x Merino crossbred were analyzed by the method of least squares for Birth Weight (BW), Weaning Weight (WW) and Yearling Weight (YW). Two kind of analyses were executed for each traits i.e. within Fl sire generation and within F2 sire generation. For each analysis, maternal heterosis was respectively calculated as twice the difference between the least squares means of F2 and F2.5 lambs and F2.5 and F3 lambs.Pool estimates of maternal heterosis effects were also calculated for each traits. Research results showed that there was no significant difference of BW between F2, F2.5 and F3 generation. Weaning Weight was significantly higher (P < 0,05) in the synthetic population as compared to the Fl generation. Yearling Weight (YW) was significantly higher in the F2 generation as compared to F2.5 and F3 generation at the level of 5% (P < 0,05 ) and the 10% level (P < 0,10 ) respectively. Within Fl sire generation,maternal heterosis effects were 12,65%, 3,4% and 1,67% for Birth Weight (BW), Weaning Weight (WW) and Yearling Weight(YW). From the analysis within F2 sire generation, maternal heterosis effects were 1% for BW, 4,49% for WW and 3,09% for YW.Pool estimates of maternal heterosis effects were 5,78%, 3,95% and 2,37% for BW, WW and YW respectively. These results indicated that the effect of maternal heterosis gradually declined from preweaning to postweaning periods. In general, the present estimates of maternal heterosis for body weights are in close agreement with previous publications.In order to gain maximum benefit from heterosis, these results suggest that in designing a crossbreeding program,especially in developing a new synthetic population, we should take into account not only individual heterosis effects but also all other different sources of heterosis such as maternal heterosis. Genetic methods presented in this paper can be used in the breeding program in Indonesia,especially in the development of the improved synthetic sheep population. However to the determine the superiority of synthetic population over the Fl generation, the overall comparison should be made on body weight, growth rate, survival rate and fertility traits.
UJI AKTIFITAS ENZIM SELULASE DAN LIGNINASE DARI BEBERAPA JAMUR DAN POTENSINYA SEBAGAI PENDUKUNG PERTUMBUHAN TANAMAN TERONG (Solarium melongena) YB Subowo
BERITA BIOLOGI Vol 10, No 1 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i1.2044

Abstract

The objective of this study was to obtain effective and beneficial microorganism specially fungi, which are able to stimulate and increase eggplant growth. Four lignocellulolytic fungi {Mucor sp. M13T, Aspergillus sp. M2P, Penicillium sp.M3P1, Penicillium sp. R 7.S and mixture of them) were evaluated for their ability to promote plant growth through provision of availability of soluble carbon finally stimulate beneficial microbial growth, and thus promoting eggplant growth. Aspergillus sp. M2P having cellulolytic activity (0.0612 U/ml) and Penicillium sp. M3P1 having ligninase capacity showing different plant growth stimulation on character and yield coefficient. Penicillium sp. M3P1 more effective to increase plant growth than that of control.While Aspergillus sp. M2P was less effective compared to Penicillium sp. M3P1. Therefore,we recommended using Penicillium sp. M3P1 as plant growth promoter for eggplant.

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