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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 24 Documents
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Search results for , issue "Vol 3, No 8 (1988)" : 24 Documents clear
EKOLOGI MAKAN IKAN GLYPTOTHORAX MAJOR (BLGR) (BAGARIDAE, SILURIFORMES) DI SUNGAI ALAS, ACEH TENGGARA IKE RACHMATIKA; SOETIKNO WIRJOATMODJO
BERITA BIOLOGI Vol 3, No 8 (1988)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i8.1308

Abstract

IKE RACHMATIKA & SOETIKNO WIRJOATMODJO.1988.Feeding ecology of Glyptothorax major Blgr) (Bagaridae, Silurifoimes) in the Ala River,South East Aceh. Berita Biologi. 3(8): 396 399.A study on the feeding ecology of Glyptothorax major (Blgr) was conducted in the Alas River South East Aceh, Sumatra during early dry season, January 1983.Index of Preponderance analysis showed that this species is a benthic-insect feeder It was found that the food habit of immature and mature fish is slightly different.The mature fish's food habit is more varied than the immature's. Based on the concept of the "availability factor"of prey species,a tendency was also found that the mature fish is a more opportunistic of using food resources than the immature's.The supposed mechanisme of this difference and its relation with condition factor values is discussed.
PENGARUH PENGERINGAN DAN SUHU PENYIMPANAN TERHADAP DAYA HIDUP BIJI KEMUNING (MURRAYA PANICULATA) N. WULIJARNI; SOETJIPTO SOETJIPTO
BERITA BIOLOGI Vol 3, No 8 (1988)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i8.1313

Abstract

N.WULIJARNI-SOETJIPTO.1988. Effect of drying and storage temperature on the viability of kemuning(Murraya panicuhta) seeds, Berita Biologi 3(8): 424 - 429.Seeds of kemuning {Murraya paniculata (L.) Jack) were dried under room temperature (28°±2°C),and then stored for a duration of 9 weeks at 28°, 10°, 4° and - 10°C. The seeds remained fully viable when the moisture content was reduced to 5%. After storage at 10° or 4°C the seeds having 5% moisture content remained almost fully viable.Their viability decreased to around 60% at - 10°C, and less than 40% at 28°C.Seeds having higher moisture contents still maintained their viability after being stored at 10°C. However, they lost their viability when stored at higher or lower temperatures.It appeared that the seeds contained much higher percentage of saturated fatty acids compared with the unsaturated fatty adds. It is concluded that the kemuning seeds do not tend to follow the behaviour of true orthodox seeds,since they do not seem to withstand subfreezing temperature although they may toleratev drying.
PERTUMBUHAN BEBERAPA JENIS LEGUMINOSA TUMBUH-CEPAT DI LAPANGAN SETELAH SEMABSfYA DIINOKULASI DENGAN RHIZOBIUM S. DANIMIHARDJA; SAEFUDIN SAEFUDIN; F. SYARIF; N. SETYOWATMNDARTO
BERITA BIOLOGI Vol 3, No 8 (1988)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i8.1304

Abstract

S. DANIMIHARDJA,SAEFUDIN,F. SYARIF & N.SETYOWATMNDARTO. 1987. The growthof some fast-growing legume species in the field after seedling inoculation with Rhizobium.Berita Biologi 3(8): 377 - 381.Eleven species of fast growing legumes were grown in the field after their root seedlings were inoculated with two selected strains of Rhizobium sp.The results indicated that Acacia villosa was the fastest growing species (324.8 cm in height and 28.35 mm in diameter after 13 months of planting).The slowest one was Albizia procera (86.20 cm and 10.45 mm).The statistical analysis indicated that between species there were highly significant differences either in height or in diameter of the plants. Between treatments there was significant difference in diameter, but not in height.The interaction between treatments and species was highly significant difference in diameter, but not significant one in height. After 13 months of planting 6 species had already produced pods,namely Acacia villosa,Albizia lebbeck,Bauhinia acurninata, B. purpurea, Caesalpinia pulcherrima and 7 C.sappan.The death rates were ranging from 19% (in Albizia chinensis),30%(in A. falcatariaj, 46% (in A. procera),47% (in A. lebbeck), until 50% (in Acacia auriculiformis).
HUBUNGAN ANTARA PERSEN PENUTUPAN SALVINIA MOLESTA DAN PERTUMBUHAN IKAN NILA (TILAPIA NILOTICA) YUN INDIARTO
BERITA BIOLOGI Vol 3, No 8 (1988)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i8.1309

Abstract

YUN INDIARTO.1988,Relationship between percent coverage of Salvinia molesta f nd growth rate of Nile Tilapia (Tilapia nilotica),Berita Biologi 3(8) : 400 - 404.A study on the growth rate of Nile Tilapia in relation to various coverage of S.molesta has been conducted in experimental ponds for twelve weeks. Anaiysis of variance shows that the percent coverage of S.molesta affected significantly the growth rate of the Nile Tilapia (weight : F>F 0.01 and length : F > F0.05).It was found that 50% coverage or more may reduce the tish growth rate.The best growth rate was 1 reached at 25% coverage.Environmental condition:related to the above findings are discussed.

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