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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
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PERTUMBUHAN BIAK JARINGAN DENDROBIUM SCHULLERI PADA TIGA MACAM MEDIA GANDAWIDJAJA, DJUNAEDI; IMELDA, MARIA
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.v2i8.1413

Abstract

Teknik biakjaringan telah banyak dimanfaatkan baik untuk tujuan perbanyakan tanaman rnaupun untuk tujuan lain. Penerapan teknik ini dalam bidang peranggrekan terutama diarahkan pada tujuan komersial. Pada umumnya anggrek mudah diperbanyak dengan teknik biak jaringan, tetapijenis jenis tertentu ataupun bagian-bagian tertentu dari tanaman anggrek kadang-kadang sulit ditumbuhkan dalam suatu medium buatan (Mitra 1971, Sagawa dan Shoji 1967, Stewart dan Button 1975).Pemilihan bahan biak dan medium sangat menen+ukan berhasil tidaknya suatu biak jaringan (Gamborg et at 1976).Dalam usaha merangsang pertumbuhanbiak, berbagai macam hormon ataupun bahan organik, misalnya air kelapa, telah sering digunakan. Percobaan ini dilakukan dalam rangka mencari medium yang cocok bagi pertumbuhan biak jaringan Dendrobium schulleri J.J.S. sebagai alternatif cara perbanyakan dan pelestariannya. Pemilihan D. schulleri sebagai bahan percobaan didasarkan atas pertimbangan potensinya yang tinggi sebagai tanaman hias penghasil bunga potong. Pertimbangar lainnya ialah bahwa jenis yang asli dari Indonesia ini sudah banyak terkuras dan terdesak dari habitat aslinya sehingga dikhawatirkan akan mengalami erosi populasi ataupun erosi genetik.
THE IRRADIATION OF MALE METHOD OF INSECT CONTROL Borstel, R. C von
BERITA BIOLOGI Vol 1, No 1 (1968)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v1i1.1520

Abstract

to successfully employ the irradiation-of-male method for insect control, only three radiation Hersitivity parameter must be Known
PREVALENSI INFEKSI NEMATODA USUS PADA PENDUDUK DESA BENTANGAN KECAMATAN WONOSARI, KABUPATEN KLATEN, JAWA TENGAH PURWANINGSIH, S.; SUTIARTI, SUTIARTI; SUKAHAR, A.; SEDEMEN, IGP BADJRA
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.v3i8.1312

Abstract

S. PURWANINGSIH, SUTIARTI. A. SUKAHAR & IGP BADJRA SEDEMEN.1988. Prevalence of intest Nematode infection at Bentangan,Kecamatan Wonosari-Klaten, Central Java.Berita Biologi 3(8):418 - 423.An experiment was conducted to study prevalence of intest Nematode infection at Bentangan, Kecamatan Wonosari-Klaten Central Java.Two hundred and ten persons were used in this experiment,they were gerabah makers,farmers and emphoyees, each group consisted of 70 persons.Samples of faeces was examined and identified by microscope.The result showed that were two types of intest Nematode found in the samples namely Ascaris lumbricoides and Trichuris trichiura. The prevalence of A.lumbricoides and T.trichiura infection did not correlate significantly with the type of occupation, sex, age, faeces density, method and intensity of the infection.
FAKTOR MUSIM DALAM PEMBUAHAN SALAK (SALACCA EDULIS) MOGEA, JOHANIS P.
BERITA BIOLOGI Vol 2, No 4 (1979)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i4.1395

Abstract

Buah salak sudah cukup dikenal, walaupun jarang sekali orang menempatkannyapadaurutan tertinggi di antara kumpulan buah-buahan yang enak dimakan. Tetapi ini bukan berarti salak tidak mempunyai nilai ekonomi sama sekali sebab di Jakarta, Bogor, Bandung, Yogya, Penpasar dan di Iain-lain kota harganya dapat mencapai Rp. 50,- per buah. Karenanya kebun-kebun salak yang terdapat a.l. di Condet (Jakarta), Manonjaya (Tasik), Sleman (Yogya), Bangkalan (Madura), Kaiang Asem (Bali), Pangu serta Tahu Landang (Sulawesi Utara) dapat memberikan penghasilan yang cukup berarti bagi para pemiliknya. Di Manonjaya misalnya, dari 300 rum pun pohon salak dapat dihasilkan rata-rata 6000 buah setiap bulannya. Di desa tersebut terdapat kebun-kebun rakyat yang keseluruhannya berjumlah hampir 400 ribu Ha dan memiliki hampir 3 juta pohon salak. Karena itu tidaklah mengherankan jika produksi buah salak di sana ternyata mempunyai peranan besar dalam pembangunan desa, seperti perbaikan jalan desa, pembangunan gedung sekolah dan Iain-lain.
PENGARUH INTENSITAS PENYINARAN TERHADAP PRODUKSI MALAI, BUNGA DAN BUAH RAMBUTAN (NEPHELIUM LAPPACEUM) FACHRUROZI, ZAMZANI
BERITA BIOLOGI Vol 2, No 6 (1981)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i6.1404

Abstract

Pengaruh iklim terhadap pertumbuhan dan berbuahnya tanaman tahunan, khususnyabuah-buahan lebih besar da ripa da terhadap tanaman semiisim.Untuk menanam tanaman semusim, orang dapat memilih waktu dan tempat yang iklimnya sesuai dengan persyaratan hidup tanaman yang hanya hidup selama beberapa bulan saja.Tanaman tahunan hams dapat mengatasi segala perubahan suhu, curah hujan, air tanah, teriknya sinar matahari dan sebagainya, yang disebabkan perubahan cuaca yang terjadi sepanjang tahun (Satiadiredja 1969).Diantara faktor-faktor iklim, penyinaran matahari sangat menentukan produksi suatu jenis tanaman. Banyak tanaman pertanian memerlukan intensitas penyinaran matahari yang cukup-banyak.Tetapi banyak juga yang memerlukan intensitas penyinaran rendah, misalnya vanili dan kopi, sehingga pada penanaman tanaman semacam ini perlu adanya tanaman peneduh.
PENGARUH PENGERINGAN TERHADAP KANDUNGAN LEMAK CABE BESAR (CAPSICUM ANNUUM L.) JAMAL, YULIASRI; PANGGABEAN, G.
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.v3i8.1303

Abstract

YULIASRI JAMAL&G. PANGGABEAN. 1988 The effect of drying on the fat content of th chillies (Capsicum annuum L.). Berita Biologi 3(8) 374 - 376. The treating of chillies on various temperatures were studied in order to know their effect on the fat content.The chillies were dried in the refrigerator (12°C),in the room at ambient temperature (25°C ±2°C), in the sun shine (35°C ± 2°C) in the oven at various temperatures such as 40°C 50°C, 60°C, 70°C, 80°C, 90°C and 100°C.During the investigation were used cabe keriting and cabe besar biasa & it were obtained from the local market.The results of the observation that the highest fat content were found on the cabe keriting a 70 C drying as well as room temperature.The fat content of terated chillies, however, in the oven at 50°C, 60°C were similar 14%.Meanwhile,the dried chillies as the result on the sun shine was 3,5% fat content. The fat content of cabe besar biasa was significantly high at 70°C. The fat content of the chillies decreased rapidly on the treating in the sun shine.The chillies both cabe keriting and cabe besar biasa which were dried more than 60°C & in the sun shine, the pulp turned to brownish red, whereas the dried chillies in the refrigerator, at room temperature, 40°C, 50°C and 60°C the colour of the pulp were similar to the fresh fruits.
PENYEBARAN KEONG DAN KEPITING HUTAN BAKAU WAI SEKAMPUNG, LAMPUNG BUDIMAN, ARIE; DJAJASASMITA, MACHFUDZ; SABAR, FEIZAL
BERITA BIOLOGI Vol 2, No 1 (1977)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i1.1386

Abstract

Beberapa pengamatan telah banyak dilakukan orang terhadap bermacam-macam aspek ekologi binatang yang ada di daerah hutan bakau, di antaranya tentang zonasi,penyebaran, kelimpahan(abundance),kepadatan (density) dan Iain-lain.Pengamatan yang serupa telah dilakukan terhadap jenis-jenis keong dan kepiting, dengan mengambil tempat di hutan bakau Wai Sekampung (Lampung)antara bulan Oktober - Nopember 1975.Hal ini perlu dilakukan mengingat akan adanya perubahan lingkungan di daerah tersebut,dengan dibukanya hutan bakau.guna usaha pertambakan dan permukiman.Hasil pengamatan ini akan merupakan data dasar bagi komposisi dan penyebaran keong dan kepiting yang ada, sehubungan dengan adanya perubahan lingkungan pada masa yang akan datang.
KEKERABATAN MAXOMYS SURIFER (MILLER 1900) ASAL SUMATRA, JAWA DAN KALIMANTAN BERDASARKAN VARIASI MORFOLOGINYA Maryanto, Ibnu; Sinaga, MH
BERITA BIOLOGI Vol 4, No 4 (1998)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i4.1270

Abstract

Examination of morphological variation on Maxomys surifer from Sumatra, Jawa and Kalimantan were conducted using 60 adult specimens.Univariate and multivariate statistical analyses of 20 skull and four external characters showed that Maxomys surifer was not sexually dimorphic (P >0.05). The discriminant analysis based on skull characters indicated that Sumatran population had two distinct group; north (Ketambe and Tapanuli) and South to Central Sumatra, the north of Sumatra form was closer to Kalimantan and Jawa.
KOMUNITAS SERANGGA AIR DI SUNGAI HUTAN KETAMBE, TAMAN NASIONAL GUNUNG LEUSER, ACEH. WIRJOATMODJO, S.; ATMOWIDJOJO, ANITA HANNA
BERITA BIOLOGI Vol 3, No 3 (1985)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i3.1354

Abstract

S. WIRJOATMODJO & ANITA HANNA ATMOWIDJOJO. 1985. Insect community of stream ecosystem of Ketambe forest, Gunung Leuser National Park, Aceh, Berita Biologi 3.(3) : 111 -115.Non-strictly seasonal study on the insect community of stream ecosystem at Ketambe forest, Gunung Leuser National Park,Aceh was undertaken from September 1980 to February 1983,with the aim of providing base line data of the local stream ecosystem. Thirty two species of benthic insects were recorded from the depth between 5--30 cm.They belong to the orders of Diptera, Odonata, Kphemeroptera, Coleoptera, Plecoptera, Hemiptera, Megaloptera and Trichoptera. The number of species found was higher during the beginning of the dry than that of the rainy season (96,9% vs 59,4% of the total). Diptera and Odonata showed the highest number of species (8) among the orders, whereas Trichoptera was the lowest (one species). However, in term of frequency of occurence and abundance, the Trichoptera species, Hydropsyche sp,, was the highest, followed by Neoperla sp. (Flecoptera). There was a tendency of seasonal fluctuation in species number and life cycle in several species. Bottom structures containing pebbles, boulders of various sizes and leaf litter for shelter and feeding site, appeared to be the best habitat. Species composition or number varied with stations. However, diversity indexes among stations were more or less similar, and all of them were low.
UKURAN PERTAMA KALI MATANG GONAD DAN SELEKTIVITAS JARING INSANG IKAN NILA (OREOCHROMIS NILOTICUS) DI WADUK JATILUHUR, JAWA BARAT Warsa, Andri; Astuti, Lismining Pujiyani
BERITA BIOLOGI Vol 18, No 3 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i3.3720

Abstract

A gillnet is a common fishing gear for exploitation and fish capture at Jatiluhur Reservoir. The fish size captured by the gillnet depends on the mesh size for its selective fishing gear. Determination of gillnet mesh size is one of effort for fisheries management.  The management of nile tilapia (Oreochromis niloticus) is based on gillnet selectivity and reproductive biology of nile tilapia. The aim of the research was to estimate length at the first mature (Lm) and gillnet selectivity for nile tilapia. The research was conducted at February-September 2017 through experimental fishing using gillnet with 1.0?4.0 mesh size (interval 0.5 inch). The gillnet installation was performed at six stations, namely Cihuni-Cibadak, Sungai Cikanyayan, Sungai Ciririp, Sungai Cihonje, Pasir Kole and Cilalawi. The Lm of nile tilapia was 18.3 and 23.3 cm for female and male, respectively. The total length retained in the gillnet with the highest probability for mesh size 1.0; 1.5; 2.0; 2.5; 3.0; 3.5 and 4.0 inches were 9.5; 12.5; 14.5; 18.5; 20.5; 26.5 and 30.5 cm, respectively. The minimum mesh size used for nile tilapia exploitation was ?3 inches because it was able to catch nile tilapia with the total length larger than Lm (Lc>Lm) and with an SPR value of > 40% so that the tilapia resource in the Jatiluhur Reservoir remains sustainable.  

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