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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
 140   141   142   143   144 
STATUS POPULASI DAN KONDISI HABITAT SURILI {Presbytis comatd) DI CAGAR ALAM SITU PATENGAN, JAWA BARAT Nurjaman Nurjaman; M Bismark; Sofian Iskandar
BERITA BIOLOGI Vol 6, No 3 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i3.1217

Abstract

Population and habitat survey was conducted in June-July 2000, at Situ Patengan Nature reserve, which aimed to record the current population data and habitat conditions. We recorded seven groups of grizzled leaf monkey/surili occurred at nature reserve, with number of 3 individual were vary between 4-8 individual each group and population density of 17/km . Sex ratio of individuals were 1:1.86, with percentage of age structures consisted of 17.95% adult male, 33.33% adult female, 25.64% juvenile, 20.51% offspring and 2.56% infant. Vegetation analysis recorded 56 species of plants found in the reserve. Some of the species were dominance, i.e. pasang (Quercus sp.), kihiur {Castanopsis javanica) and puspa {Schima walichii). Since population survey were conducted by Ruhiyat (1983) with population 2 3 density of 35 individuals/km and Adriana (1995) with population density of 3.5 individuals/km , the population density of the monkeys shown trend of decreasing. The reserve, located adjacent with some plantation areas and production forest area of Perum Perhutani, isolated the forest. This condition predicted as a potential threat to the habitat and population of the monkeys. The monkey's population will be a doomed population in the future.
PENGARUH SUHU PENYIMPANAN DAN WAKTU PENGKONDISIAN UNTUK MEMPERTAHANKAN KUALITAS KENTANG KULTIVAR MARGAHAYU Ali Asgar; ST Rahayu
BERITA BIOLOGI Vol 13, No 3 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i3.672

Abstract

The study aimed to determine the effect of storage temperature and time reconditioning to maintain the quality of potato cultivars Margahayu. The experiments were conducted in the Laboratory of Postharvest of Vegetable Crops Research Institute (BALITSA) from July to October 2012. Altitude research is ± 1200 masl with temperatures between 14.94 - 24.61°C and the relative humidity (rH) 85.56%.Experimental design used in this study was factorial a randomized complete design consisting of 2 factors. Treatments were factorial combinations of storage temperature (4 °C, 7 °C and 10 °C) and time reconditioning (0 days, 3 days, 6 days and 9 days).The number of replications for each treatment was 3. The results of research showed that there is interaction between storage temperature and reconditioning on reducing sugar content and vitamin C. Storage temperature and reconditioning treatments were positive affect on Total Soluble Solid (TSS) and organoleptic chips. The treatment can maintain the quality of the potato tuber is the storage temperature 7 °C, 10 °C with a time of 6 to 9 days reconditioning.
KILAS BALIK PENELITIAN KROMOSOM PALEM INDONESIA Joko Ridho Witono
BERITA BIOLOGI Vol 9, No 2 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i2.2019

Abstract

There are 525 native palm species to Indonesia.Chromosome numbers of 61 Indonesian palm species have been reported,unfortunately, not all species were presented by their karyotype. Re-observation of palm chromosomes is needed, because mis identification of particular species and uncorrect chromosome counts might be happen in the past. Chromosome characteristics of some families, such as Poaceae and Onagraceae were proved useful for classification.On palms, almost all species within similar genera were known had similar chromosome numbers and different in chromosome forms and sizes.Trends to employ chromosome characteristics for palm classification is possible.Since, chromosome information on palm is limited,chromosome research has great challenge to do in the future.
POLA INFESTASI PARASIT ARTHROPOB PADA TIKUS DI KEBUN RAYA PURWODADI, JAWA TIMUR SRI HARTINI
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.v3i3.1353

Abstract

SRI HARTINI. 1985. The infestation pattern of arthropod parasites on rat at Purwodadi Botanical Garden. East Java. Berita Biologi 3(3) : 108-110. An investigation to find out the pattern of infestation of arthropod parasites on Rattus tiomanicus and Rattus rattus diardi was conducted in Purwodadi Botanical Garden, East Java. The parasites studied were Laelaps nutalli, Echinolaelaps echidninus (Acarina), Hoplopleura pacifica, Polyplax spinulosa (Anoplura) and Xenopsylla cheopis (Siphonaptera). It was concluded that parasite prevalence depends on habitat, age and sex of the host.The number of parasite infesting R. tiomanicus is greater than that of R.r. diardi, Adult rats have a higher prevalence rate than juveniles; likewise female adult rats are also higher than other sex and age group.
PENGARUH NAUNGAN TERHADAP PERTUMBUHAN BIBIT PULAI {Alstonia scholaris (L.) R.Br) Titi Juhaeti
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.v9i6.854

Abstract

Pulai {Alstonia scholaris (L.) R.Br famili Apocynaceae} is one of the prospective plants due to its multipurpose such as for construction, medicine and handicraft. It is known that pulai can be propagated by seed, cutting or grafting. To have the best performance of seedling in the nursery, we have to study many aspects. One of that aspect is shading tolerance of pulai seedling. This research was conducted to study the effect of 0, 25, 50 and 75% shading on the growth of pulai seedling. The result showed that the best growth of pulai seedlings is on the 0% shading. But in 25-50% shading the growth of pulai seedling are still in good performance, while in 75% of shading the growth have been decreased.
VARIASI MORFOLOGI JENIS INANG Subulura andersoni Cobblod, 1887 DI INDONESIA DAN DESKRIPSI Subulura sipiroki n.sp. Endang Purwaningsih
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.v6i4.3451

Abstract

Subulura andersoni (Nematoda: Subuluroidae) recovered from some of Muridae in several places in Indonesia was observed for morphological variation. There kinds of tail morphology were found e.g tail with short and bluntly rounded spike, tail with longer and sharply pointed spike, and tail with antero ventrally curve spike, The new species of Subulura sipiroki n.sp. recovered from Leopoldamys sabanus in Sumatera also described.
EFEKTIVITAS PUPUK ORGANIK DAN PUPUK N PADA PERTUMBUHAN BIBIT EBONI (Diospyros celebica Bakh.) Hartutiningsih M Siregar; Ning Wikan Utami
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.v6i2.1495

Abstract

Eboni (Diospyros celebica Bakh.) merupakan tanaman keras dan termasuk jenis kayu mewah yang tumbuh alami di Sulawesi.Masalah yang dihadapi adalah pertumbuhan bibit yang lamban sehingga diperlukan percobaan tentang media pertumbuhan bibit yang sesuai. Bahan yang digunakan adalah bibit eboni berumur 6 bulan dengan pertumbuhan seragam.Percobaan I: Bibit ditanam pada polybag berkapasitas 5 kg yang masing-masing berisi campuran media tanam yakni A (tanah); B (tanah:kompos = 1:1); C (tanah:pupuk kandang = 1:1); D (tanah:kompos:pupuk kandang = 1:1:1); E (tanah:kompos:pupuk kandang = 2:1:1) dan F (tanah:kompos:pupuk kandang = 4:1:1).Percobaan II. Bibit ditanam pada polybag berkapasitas 5 kg tanah, dan dilakukan penambahan pupuk N yaitu urea dan ZA masing-masing 1,2, 3,4 dan 5 %rlpolybag. Pupuk diberikan dengan interval 2 minggu (2 kali pemupukan) dan 4 minggu (satu kali pemupukan).Hasil penelitian menunjukkan bahwa Percobaan I, bibit yang diperlakukan dengan media tanam berisi tanah:pupuk kandang = 1:1(C) memberikan hasil yang paling baik. Enam bulan setelah perlakuan, rata-rata tinggi tanaman 32,80 cm, jumlah daun 25 dan diameter batang 4,10 cm, sedangkan pada bibit yang tidak mengalami perlakuan (Percobaan I.A) hasilnya masing-masing adalah 22,60 cm, 19 dan 3,3 cm. Percobaan II, pemberian pupuk interval 2 minggu lebih baik daripada 4 minggu. Bibit lebih responsif terhadap pupuk urea. Perlakuan urea 3 gc/polybag memberikan hasil tertinggi yaitu tinggi tanaman mencapai 31,58 cm, jumlah daun 27 dan diameter batang 4,20 cm.
CHARACTERISTIC OF CMCASE OF Bacillus sp. ISOLATED FROM SOIL OF GUNUNG HALIMUN NATIONAL PARK*[Karakteristik CMCase Bacillus sp. Yang Diisolasi dari Tanah Taman Nasional Gunung Halimun]] I Made Sudiana
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.v6i1.1180

Abstract

Delapan isolat bakten diisolasi dari lanah Taman Nasional Gunung Halimun dipelajari posisi laksonomi dan karaktcr fisiuloginyu. Kemanipuan sclululilik dari 8 isolat Icrscbut diuji dengan membandingkan luas koloni dan zona bening yang terbentuk pada koloni yang ditumbuhkan pada CMC.Selanjutnya Karakteristik CMC-ase dari satu isolat yang mempunyai kemampuan sclulolitik yang paling tinggi diuji. Isolat dengan cepal menggunakan CMC scbagai sumber carbon utama pada suhu 30° C dengan keeepatan pertumbuhan 1.71 '. 1,58"',dan 1.50 ' pada pH ft. 7 dan 8. Tidak ada pertumbuhan yang bcrarti pada kultur yang nienggunakan Avicel sebagai sumber karbon utama.Aktivitas CMCase maksiinum sebcsar6 Unit terjadi pada pH 7 setclah 4 hari kultivasi. Maksimum pertumbuhan scl dicapai pada hari ke 4. Penambahan gliikosa incnstimulusi pertumbuhan binmassa tctatpi menghambat aklivitas enzim. Km dan Vmuk dari CMC-ase adalah IDmM dan2.(,8mM.d'.
ANALISIS KERAGAMAN GENETIK Musa balbisiana Colla BERDASARKAN MARKA RAPD DAN ISSR Yuyu Suryasari Poerba; Fajarudin Ahmad
BERITA BIOLOGI Vol 12, No 2 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i2.540

Abstract

Wild Musa balbisiana Colla is one of the progenitors of cultivated bananas and plantains. It is originated in Asia, and distributed from India to Papua New Guinea. This study was conducted to assess the molecular diversity of 25 accessions of M. balbisiana based on Random Amplified Polymorphic DNA (RAPD) and Inter Simple Sequence Repeats (ISSR) analyses. RAPD and ISSR fingerprints of these banana varieties were detected by amplifications of nine primers of RAPDs and six primers of ISSRs. RAPD primers produced 84 amplified fragments varying from 150 bp to 2300 bp in size. 21.43 % of the amplification bands were polymorphic. ISSR primers produced 61 amplified fragments varying from 250 bp to 2200 bp in size. 29.30 % of the amplification bands were polymorphic. Based on these results, the 25 accessions of Indonesian M. balbisiana showed a low genetic variation, with coefficient of similarity ranged from 0.81 to 0.99.
STUDI VEGETASI HUTAN RAWA AIR TAWAR DI CAGAR ALAM RIMBO PANTI, SUMATERA BARAT Razali Yusuf; Purwaningsih Purwaningsih
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.v9i5.1986

Abstract

A Vegetation study of some different freshwater swamp forests in Rimbo Panti Nature Reserve, West Sumatera was carried out with a quadrat methode.The results of a floristic inventory of trees with DBH e" 10 cm show that 136 species of 90 genera in 402 families ,presented by 1676 individuals, with the total basal area of 53.11 m occurred in the 5 hectare sample plots.The two leading families in terms of number of species were Euphorbiaceae and Lauraceae while according to the the total sum of importance values for families were Euphorbiaceae, Moraceae and Bignoniaceae.We recorded 19 species of Euphorbiaceae, constituting14.4% of the total species with the basal area of 39.4 % of the total in the three plots. Terminalia copelandii(Combretaceae) was the most prominent species occurring here and was one of the ten leading species. The species-area curves rose steadily up to an area of 1.0 hectare, with a very slight indication of levelling off at about 2 hectares, indicating high Heterogenity particulary in the permanently flooded swamp forest. Four largest trees were Artocarpus rotundatus (DBH = 100.50 cm) Chydenanthus excelsus (DBH = 92.50 cm), Haplophragma macrolobum (DBH = 83.00) and Anthocephalus chinensis (DBH= 75.10 cm).

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