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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
 99   100   101   102   103 
ANALISIS VEGETASI DI PULAU BINTAN, KEPULAUAN RIAU Pratama, Bayu Arief; Mirmanto, Edi
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.v18i3.3715

Abstract

Ecological study with special attention to vegetation analysis has been done in the Bintan forest area, Riau Archipelago. Based on three sampling plots of 30 × 30 m, there were 73 tree (dbh ? 5 cm) species were recorded, belong to 64 genera and 32 families. The density is fairly high (1,485 individuals /ha) with total basal area relatively low (27.71 m2/ha).  Its indicates that most of trees are small size. Similarity index among study sites are relatively low (< 25 %), indicates that there is strong relation between habitat and species composition. Out of the 6 most common tree species in the study area, only Dipterocarpus gracillis was dominant in 2 study sites. Overall species diversity is relatively low, which is characteristic of forest vegetation on small islands. 
EFEK NAUNGAN DAN ASAL ANAKAN TERHADAP PERTUMBUHAN EBONI (DIOSPYROS CELEBICA BAKH.) Rahman, Wirianto; Abdullah, Muh. Nurdin
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.
KEBERADAAN KAPANG PADA GAPLEK: PENGARUH TERHADAP KUALITAS DAN DAYA SIMPAN Yulineri, Titin; Hardiningsih, Riani; Suciatmih, Suciatmih
BERITA BIOLOGI Vol 4, No 1 (1997)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i1.1291

Abstract

A study was carried out to find out contaminated fungi on dried cassava.There were two experiments: I. isolation and identification of fungi on dried cassava and 2. inhibiting capacity of some kinds of some kinds of solution on growth of fungi.In experiment 2, there were three treatments: I.solution of garlic; 2.solution of salt and 3. vinegar.Results showed that dominated fungi on dried cassava were Aspergillus niger. Pen/ol/iumsp.and Rhizopussp. Between three treatments in experiment 2, the most effective solution to increase quality and storage capacity of dried cassava was solution of garlic.
MORFOLOGI JAMUR PEMBENTUK MIKORIZA PADA AKAR RUMPUT INDIARTO, SUCIATMIH Y.
BERITA BIOLOGI Vol 3, No 7 (1987): (Supplement)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i7.1374

Abstract

SUCIATMIH Y.INDIARTO.1987.Morphology of mycorrhizal fungi in grass roots.Suppl.Berita Biologi 3 : 26 - 30.Visual examination of roots of grass species collected from the surrounding of Herbarium Bogoriense building and Baranangsiang has shown that the main infecting organisme are Phycomycete endophytes of the vesicular arbuscular type.It was attempted to assess morphology of fungi in the grass roots.External mycelium displays dimorphism. There are thick walled asceptate hyphae and thin-walled septate External vesicles may be formed singly and are sometimes furnished with a rudimentary hyphae Root penetration takes place by hyphae entering either epidermal cells or root hairs.The internal mycelia in grasses correspond to descriptions of similar endophytes in other plants. Internal vesicles are formed mainly in the outer cortical cell layers.In general, these are located both in interaeellular and intercellular position.Internal arbuscules are usually developed in the inner cortical cells.Each cell becomes occupied by an arbuscule.
PENELITIAN EKOLOGI HUTAN DI PULAU NATUNA: STATUS HARA DAUN DAN SERASAH Mirmanto, Edi
BERITA BIOLOGI Vol 14, No 1 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i1.1869

Abstract

Forest ecological study with special attention to leaf and litterfall nutrient status has been conducted in several forest types at Natuna Island, Riau Archipelago. Ten plots have been setup which distributed in several forest type areas. Fresh leaf was collected from some dominant tree within the plots, whereas fallen leaves collected from litter traps.Nutrient content especially for N, P, K and Ca analyzed from all combined species of both fresh and fallen leaves.Results of chemical analyses showed that all fallen leaves mineral element concentration, except for Ca,were lower than that in fresh leaf. Presentage of retranslocation of both nitrogen and phosphorus tended to be similar to some earlier studies in several tropical forests. Nitrogen and phosphorus were suspected to be limiting factors of forest growth in this area.
BIRDS OF THE BOTANICAL GARDENS OF INDONESIA AT BOGOR BALEN, S. van; MARGAWATI, E.T.; SUDARYANTI, SUDARYANTI
BERITA BIOLOGI Vol 3, No 4 (1986)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i4.1342

Abstract

S. van BALEN, E.T. MARGAWATI & SUDARYANTI. 1986. Audi fauna Kebun Raya Bogor. Berita Biolugi 3(4): 167- 172. Avifauna di Kebun Raya Bogor diamati dan disensus selama tahun 1980 - 1981 dalam rangka penelitian tentang perubahan populasi burung di Bogor dan sekitarnya. Beberapa jenis burung yang umum terdapat di Kebun Raya sebelumnya, ternyata jumlahnya sudah sangat berkurang bahkan ada yang sudah hilang. Dilihat dari keanekaragaman jenis, avifauna di Kebun Raya menurun. Pengamatan ditemskan selama bulan April - Mei 1984 dcngan kesimpulan yang sama.
KUMBANG PENGGEREK PADA BEBERAPA JENIS KAYU LEGUMINOSAE NOERDJITO, WORO A.; AMIR, M.
BERITA BIOLOGI Vol 3, No 4 (1986)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v3i4.1427

Abstract

W A. NOERDJITO&M.AMIR.1986.wood boring beetle of some leguminosae timbers.Berita Biologi 3(4): 159-162.At least 8 families of wood boring beetles were observed to cuse a damage on some leguminous timbers belong to the genus of Bauhinia,Albizia , Acacia,Sesbania,Erythrina and Glericida.They were namely Scolytidae(5Species),Platypodidae(4 species),Boctrychidae(6 species),Elateridae(1 species),Tenebrionidae(4 species),Erotylidae(1 species),Lucanidae(1 species) and Cetonidae(1 species).Hostplant selection of the beetles seemed to be determined by the timber species,as well as their state of decompositions.
TIPE STOMATA TIGA PULUH DUA JENIS BEGONIA ALAM INDONESIA KOLEKSI KEBUN RAYA CIBODAS Efendi, Muhammad
BERITA BIOLOGI Vol 18, No 2 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i2.3571

Abstract

Anatomical study on native Begonia in Cibodas Botanical Garden was conducted to determine their stomata types. Stomata 32 native Begonia were prepared by semi-permanent methods. Parameters observed in this study were stomata type, number, and size of stomata. The result showed that all Begonia species have anisocytic stomata and those stomata only found in abaxial leaves. Based on number of stomata, these Begonia can be classified into two groups: single stomata and single-grouped stomata. Generally, Begonia has a single stomata, however, single-grouped stomata is a determinate character of Begonia sect. Reichenheimia and sect. Diploclinium in CBG. The differences of stomata distribution in B. ozotothrix with other members of section Petermannia are needed to be clarified further.
KARAKTERISASI GENETIK IKAN LELE DUMBO BERDASARKAN MARKER RAPD FINGERPRINTING Estu Nugroho; Sabara Putera
BERITA BIOLOGI Vol 17, No 1 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i1.2869

Abstract

African catfish, namely lele dumbo, is an economically important fresh water fish in Nusa Tenggara Barat. There are three strains of African catfish that are well distributed among farmers. Genetic information of three strain catfish stocks is needed in order to sustain their development program. Genetic variations of the three strains of catfish, i.e. Sangkuriang, Masamo, Paiton has been evaluated using RAPD markers. DNA genome was extracted using phenol-chloroform methods. DNA was amplified using 20 primers (OPA 1 – 20). The results showed that three of the 20 primers have good amplification products. There was no significant genetic differences among three strains of catfish analyzed (P>0.05). Genetic variation of three African catfish stocks ranges from low to middle value. The highest genetic variation is found in strain Masamo with heterozygosity of 0.273 (with 70% polymorphism loci), followed by Sangkuriang 0.189 (60%) and Paiton 0.147 (40%). Hybrid candidates of Masamo-Sangkuriang have eterozygosity ranges between 0.256 - 0.306 (with 66.6 7 – 73.77% polymorphism loci). Strain Masamo and Paiton has more close genetic relationship than among the both and Sangkuriang.
TANAMAN-TANAMAN ASING DI CAGAR ALAM TELAGA WARNA N. Wulijarni Soetjipto; G.G. Hambali
BERITA BIOLOGI Vol 1, No 4 (1974)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v1i4.1510

Abstract

Dalam rangka pengunpulan contoh tumbub-tumbuhan di beberapa orang staf Herbarium Bogoriense antara lain telah mengunjungi cagar alam Telaga warna.Dari kunjungan itu diketahui adanya beberapa jenis tanaman bukan aseli Indonesia tumbuh di sekeliling telaga dan sebagian di antaranya rupanya sengaja ditanam. Hal ini mengherankan oleh karena status Telaga Warna hingga kini adalah cagar alam, Cagar alam dalam Undang-Undang No.5 tahun 1967 tentang Ketentuan-ketentuan Pokok Kehutanan, Pasal 3 ayat 3a didefinisikan sebagai " hutan suaka alam yang berhubung dengan keadaan alamnya, termasuk alam hewani dan alam nabati,perlu dilindungi untuk kepentingan ilmu pengetahuan dan kebudayaan ".Definisi itu oleh Nasution (1968) diperjelas dengan menanbahkan bahwa perlindungan itu dilakukan oleh Pemerintah sedemikian rupa sehingga keadaannya tidak berubah,Mereka yang akan memasuki cagar alam harus mempunyai surat izin istimewa,yang memuat antara lain larangan-larangan membawa perlengkapan berburu atau merusak setiap jenis kahidupan liar.

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