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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 2,125 Documents
 185   186   187   188   189 
AKTIVITAS FOSFATASE TANAH DILINGKUNGAN BENTANG HUTAN ALAMI DAN NON-ALAMI Suliasih Suliasih; Maman Rahmansyah
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i6.856

Abstract

The spatial dispersal of acid and alkaline phosphates activity in forest soils appears to be controlled by position in the landscape and its soil microbial density. Soil bacteria expressively produced significant level of acid phosphatase in the investigation.The variety of acid phosphatase activity (8.25-37.55 />-nitrophenol.g"'soil.h"') noted higher and followed by alkaline (0.78-7.15 p-nitrophenol.g-'soil.h" ), correspondingly. Acid and alkaline phosphates were exist in both of soil of natural as well as for non-natural forest soil landscape, with the value (po/o=0.6210) of correlation are 0.6889 and 0.6532, respectively. Phosphate Solubilizing Bacteria (PSB) average density in natural forest soil equivalent to 0.61xl0Â colony forming unit (cfu) and total bacteria is 160xl0 cfu, while the PSB in non-natural forest soil is 7.75xl0 cfu and total bacteria is 48.25x10' cfu. Concerning to the forest environment as soil bacteria inhabitants of PSB, there were significantly difference of PSB population in natural and non-natural landscape forest. Forest environment is negatively affect the soil enzymes activities under Pinus maritima and Caliandra calothyrsus as the lowest activities, and to the highest ones under the Schima wallichii and Eucalyptus saligna vegetation.
ISOLASI DAN SELEKSI JAMUR PENDEGRADASI SENYAWA BENSONITRIL YS Subowo; Bambang Sunarko; Indrawati Gandjar
BERITA BIOLOGI Vol 6, No 4 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i4.3453

Abstract

A study on Isolation and selection of benzonitrile degrading fungi were conducted. The aim of this study was to obtain fungi that high potentially on degrading nitrile compounds. Microbial sources were derivat from industrial wastes. fungi-infecting plantand fungi grown on decayed wood. Eighteen isolates were isolated from those samples. Five isolates were capable to grow on benzonitrile. Isolate-AVI which was identified as Fusarium oxysporum was capable of degrading 0.15% (v/v) benzonitrile.
EFEK NAUNGAN DAN ASAL ANAKAN TERHADAP PERTUMBUHAN EBONI (Diospyros celebica Bakh.) Wirianto Rahman; Muh. Nurdin Abdullah
BERITA BIOLOGI Vol 6, No 2 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i2.1497

Abstract

Percobaan pengaruh naungan dan asal anakan eboni terhadap pertumbuhannya, telah dilakukan dj Persemaian Hutan Pendidikan Universitas Hasanuddin, Bengo, Kabupaten Maros, Sulawesi Selatan selama tiga bulan. Rancangan yang digunakan adalah split plot design dengan dua faktor yaitu naungan dan asal anakan. Asal anakan sebagai petak utama terdiri dari dua tingkat, dan naungan sebagai anak petak ke dua terdiri dari empat tingkat Analisis data dengan menggunakan analsis sidik ragam, dan diuji dengan metoda Beda Nyata Jujur (BNJ). Naungan 50% secara nyata, meningkatkan pertumbuhan diameter balang dan jumlah daun dengan nilai 0,09 mm dan 4,9 lembar, sedangkan naungan 75% lebih meningkatkan pertumbuhan tinggi dengan nilai 1,52 cm. Sedangkan untuk asal anakan, basil percobaan menunjukkan bahwa anakan eboni asal tegakan hutan alam,lebih baik dalam pertumbuhan diameter batang dan jumlah daunnya. Interaksi antara naungan dan asal anakan eboni secara nyata lebih meningkatkan pertumbuhan tinggi anakan dengan pertumbuhan yang terbaik dijumpai pada anakan alam. Untuk pengadaan bibit eboni yang bermutu baik dapat dikembangkan dari anakan alami dan persemaian dengan memberi naungan 50% -75%, dan khususnya untuk bibit anakan asal persemaian pada medium tumbuhnya perlu dicampur dengan tanah humus yang berasal dari tanah pada daerah perakaran pohon induk eboni.
ARBUSCULAR MYCORRHIZAL FUNGI AT DIFFERENT ECOSYSTEMS OF GUNUNG HALIMUN NATIONAL PARK*[Jamur Mikoriza Arbuskula pada Ekosistem Berbeda di Taman Nasional Gunung Halimun] Suciatmih Suciatmih; K. Kramadibrata
BERITA BIOLOGI Vol 6, No 1 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i1.1182

Abstract

Telah berhasil dikoleksi tujuh jenis jamur mikoriza arbuskula (MA) dari tiga macam ekosistem (masing-masing dari satu tempat yang tidak terganggu dan dua tempat yang terganggu) di Ciptarasa, Taman Nasional Gunung Halimun (TNGH).Jamur-jamur tersebut adalah Acaulosporafoveata,A. morrowiae, Glomus cf.aggregation,G.etunicatum, G cf. glomerulatum,G.cfmultisubstensum and Scutellosspora projecturata. Keanekaragaman jamur MA ada kecendeningan menurun oleh adanya perusakan ekosistem.Tempat yang rusak pada ketinggian 500 m dan 700 m dpi,mempunyai keanekaragaman jamur lebih rendah, yaitu masing-masing satu dan dua jenis dari pada tempat yang tidak rusak pada ketinggian 1000 m dpi (6 jenis).
TINGKAT HUBUNGAN ANTARA VARIABEL PENDUGA BOBOT DAGING (CARCASS CUTABILITY) KARKAS SEGAR SAPI SIMPO DAN LIMPO JANTAN Awistaros Angger Sakti; Panjono Panjono; Rusman Rusman
BERITA BIOLOGI Vol 12, No 3 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i3.621

Abstract

Estimation of carcass cutability is an important factor in beef marketing. This research was conducted to observe the relationship among variables of carcass cutability estimation in hot carcass of SimPO (Simmental-Peranakan Ongole) and LimPO (Limousin-Peranakan Ongole) cattle. Eighty three bulls were used, consisted of 51 SimPO and 32 LimPO cattle. The data collected were age, body weight, carcass weight (X1), fat thickness (X2), ribeye area (X3), percentage of visera fat (X4), and carcass cutability. The data were analyzed using Independent Sample T-test, correlation 2-tailed, enter and stepwise regression analysis, and estimation curve. There were no different of age, body weight, X1, X2, X3, X4, and carcass cutability among SimPO and LimPO. There was a positive correlation between X1, X2, X3, X4 and carcass cutability (P<0,05), except to LimPO which had negative correlation for X4. The regression equation and determination coefficient of SimPO and LimPO were Y=-24,726+0,916X1; R2=0,948 and Y=-28,461+0,929X1; R2=0,996, respectively. The result indicated that the best equation for SimPO was a linear equation (R2=0,948), and a quadratik equation (R2=0,996) for LimPO.
ABSORBSI GLUKOSA DAN SUKROSA SEBAGAI SUMBER KARBON UTAMA OLEH KOMUNITAS MPG PADA KONDISI ANAEROBIK-AEROBIK Dyah Supriyati
BERITA BIOLOGI Vol 9, No 5 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i5.1988

Abstract

To study the role of substrate on the establishment of glycogen accumulating organism (MPG), activated sludge originated from anaerobic-aerobic process was implemented on waste water treatment plant which was acclimated with glucose and sucrose.Both susbtrates were effectively utilized by microbial communities during anaerobic condition. Those absorbed substances were converted to glycogen.Glycogen was also used as energy generating process as indicated by a decrease of glycogen. The dominancy of glycogen accumulating organism suppresses the polyphosphate accumulating organism as indicated by no significant release of orthosphosphate during anaerobic condition.
SPATIAL DISTRIBUTION OF DICOTYLEDONOUS WEED ARCHITECTURES IN A SHRUB VEGETATION OF MENGGALA, CENTRAL JAVA B. SUNARNO; F. HALLE
BERITA BIOLOGI Vol 3, No 6 (1986)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i6.1322

Abstract

B. SUNARNO & F. HALLE. 1986. Distiibusi spasial model arsitektur gulma dikotil di daerah vegetasi semak, Menggala, Jawa Tengah. Berita Biologi 3(6): 253 - 260. Ketapatan dan frekuensi kehadiran model-model arsitektur gulma dikotil di daerah vegetasi semak Menggala, Jawa Tengah telah dipelajari.Model CHAMPAGNAT yang diwakili oleh Mimosa invisa dan Rubus chrysophyllus merupakan model yang nilai kerapatannya paling tinggi (17,97%) dan merupakan pola pertumbuhan yang umum dijumpai di setiap stratum.Semakin tinggi tingkat stratumnya semakin rendah jumlah model dan jumlah individunya. Perbandingan antara gulma masa mendatang dengan gulma masa kini di daerah semak ini, adalah 3 : 2, menunjukkan a,danya proses suksesi yang sedang berjalaa
PENGGUNAAN ARANG AKTIF DALAM KULTUR IN VITRO Sri Hutami
BERITA BIOLOGI Vol 8, No 1 (2006)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v8i1.820

Abstract

Activated charcoal is commonly used as addition in tissue culture medium, which able to modify the composision. The effect of activated charcoal can observed in culture medium or in tissue development.Effect of activated charcoal in the medium are: 1) give a darkened environnment; 2) adsorption of undesirable/inhibitory substances; 3) adsorption of growth regulators and other organic compound; and 4) released of growth promoting substances which are beneficial to growth of in vitro culture.In tissue development activated charcoal can promote embryogenesis, androgenesis, root induction and inhibit callus formation. Fators affecting charcoal activity are:quality (depend on raw material and processing), density, purity, organic compound (affecting adsorptionn), temperature pH and type of solvent.
MAKNA NILAI PENTING BUDAYA KEANEKARAGAMAN HAYATI TUMBUHAN BAGI MASYARAKAT DI TAMAN NASIONAL KERINCI SEBLAT DI KABUPATEN KERINCI, PROPINSI JAMBI Asvic Helida; Ervizal A.M. Zuhud; Hardjanto Hardjanto; Y. Purwanto; Agus Hikmat
BERITA BIOLOGI Vol 15, No 1 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i1.2853

Abstract

Index of Cultural Significance biodiversity plants in ethnobotanical study was an important step for seeking a strategy for subsisten activity. This study was aimed to identify utilised plants that have the highest value at Kerinci community. The current study was conducted in three villages within the Kerinci Regency, Jambi Province, which located close to the Kerinci Seblat National Park: Baru Lempur, Lama Tamiai, and Ulu Jemih for 8 months (October 2013 to May 2014). Data was obtained by implementing  participation-observation method through interviews. Estimation of cultural significance for every plant species observed using the Index for Cultural Significance (ICS). Results indicated that the people of Kerinci possessed good knowledge on the biodiversity of their surrounding. Two hundred and thirty four species of useful plants we recorded with ICS value ranging from 3 to 59. Rice (Oryza sativa; Poaceae) and Cinnamon (Cinnamomum burmannii; Lauraceae) had highest ICS value, whereas ‘inggu’ (Ruta angustifolia; Rutaceae) and ‘bunching onion’ (Allium fistulosum, Amaryllidaceae ) have the lowest ICS value.
BEBERAPA ASPEK FEKUNDITAS IKAN-IKAN AIR TAWAR DI LUBUK LIMPAM SUMATERA SELATAN I. SUKU BAGRIDAE, KAN BERINGU MYSTUS NIGRICEPS C.V. DEDE IRVING HARTOTO
BERITA BIOLOGI Vol 2, No 8 (1984)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i8.1410

Abstract

Studi aspek-aspek fekunditas ikan penting dilakukan karena hasilnya dapat digunakan untuk berbagai hal, antara Iain untuk mengetahui musim pemijahan, ukuran ikan pada saat produktif sebagai penghasil keturunan dan sebagai data masukan dalam proses pemilihan bibit dalam praktek-praktek budidaya ikan. Kegunaan lainnya adalah sebagai data penunjang dalam studi dinamika populasiikan, terutama dalam studi laju peremajaan stok.Penelitian pada ikan-ikan Mystus telah dilakukan antara lain pada Mystus nemurus, M. seenghala, M. gulio, M. aor dan M. bleekeri. Aspek-aspek yang diteliti umumnya mencakup segi-segi budidaya, tingkah laku pemijahan, tingkah laku makan, makanan dan aspek fekunditasnya (Arsyad 1973; Madsuly 1977; Saigal 1964; Saigal & Motwani 1961 dan Pandian 1966).

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