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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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PENGARUH PERENDAMAN BENIH DALAM CaO DAN PEMUPUKAN P DAN K TERHADAP PENGENDALIAN KERACUNAN BESI PADA TANAMAN PADI DI LAHAN SULFAT MASAM POTENSIAL Ani Susilawati; Izhar Khairullah
BERITA BIOLOGI Vol 10, No 4 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i4.757

Abstract

Tidal land large enough sour sulfate and the potential for agricultural expansion. Obstacles encountered primarily stress iron poisoning. It has the potential to cause a decline in rice yield research aims to study the effect of the influence of seed treatment and fertilizer P and K to control iron toxicity in acidic sulfate potential land. This research was carried out in KP Belandean on MK 2007. Randomized block design with 3 replications. Rice varieties used were Batanghari, planted on plot measuring 4 mx 9 m with a spacing of 20 cm x 20 cm. Package combined treatment of seeds and fertilizer P and K: 1. (25-90-75), 2. (50-90-75), 3. (75-90-75), 4. (100-90-75), 5. (125-90-75), 6. (75-30-75), 7. (75-60-75), 8. (75-120-75), 9. (75-150-75), 10. (75-90-25), 11. (75-90-50), 12. (75-90-100), 13. (75-90-125), 14. (0-90-75), 15. (0-0-0) kg / ha% CaO-kg / ha P2O5-K2O. The result showed that by giving a dose of phosphate fertilizer 90 kg/ha P2O5 and potassium at a dose of 100-125 kg/ha K2O CaO combined with the provision of 75 % of the weight of the seed, is the combination to control iron poisoning.
PENGARUH RADIASI DAN LOKASI TUMBUH TERHADAP PERTUMBUHAN DAN PENYAKIT HAWAR DAUN TALAS kv KETAN L Agus Sukamto; Saefudin Saefudin
BERITA BIOLOGI Vol 10, No 1 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i1.2059

Abstract

Taro (Colocasia esculenta (L.) Schott) is an important tuber crop, grown widely in humid tropics and a source of carbohydrate for many people in Asia, Africa, and the Pacific islands. The leaves and stalks of taro are used as vegetable, as they contain a high protein that is useful for people diet in developing countries. Taro is underutilized plant that has potency as an alternative food.Plant propagation of taro is usually done by using its rhizome or stolon so that the genetic diversity is very limited. In vitro and irradiated techniques can increase its genetic diversity and multiply the plant that has superior quality and quantity.Taro "Ketan" grown tissue culture have been irradiated with gamma rays S Gy and 10 Gy were planted on two different environmental locations.There were many variants as the results of these treatments. Gamma rays and environmental locations caused genotype changes that were stolon number, plant height, corm fresh weight, and leaf blight disease.Gamma rays caused morphological changes that were orientation, undulation, outline of sinus, margin of lamina,and petiole color.
MOSQUITOES OF THE BOGOR BOTANICAL GARDENS SOENARTONO ADISOEMARTO
BERITA BIOLOGI Vol 2, No 2 (1977)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i2.1389

Abstract

Various types of plant communities in boanical gardens provide surroundings for animal ife.In addition to their main role in botany,he botanical gardens provide aspects for zoological investigations as well(Adisoemarto 1974) The Bogor Botanical Gardens provide most of all possible types of environments for the development and construction of mosquito population.To develop the study of some ecological aspects of the mosquitoes, the availability of qualitative data is very much desired. For this purpose, observations on mosquito fauna have been carried out in the Bogor Botanical Gardens and the Results are presented in this paper.
STUDI AWAL TERHADAP POTENSI GEWANG {Corypha utan Lamk.) SAVANA NTT SEBAGAI SUMBER PANGAN DAN MINUMAN BARU SERTABAHAN DASAR INDUSTRI ALKOHOL B Paul Naiola
BERITA BIOLOGI Vol 7, No 3 (2004)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v7i3.1068

Abstract

As a region under dry climate, East Nusa Tenggara relatively possesses limited tree species to be used as bioresources by local community for their daily needs.However, some native savanna plant species with great potential has been exploited since long time. So far, Gewang or Tune {Corypha utan Lamk.), a still-wild native palm species were exploited for traditional food, drink and rural industry.A preliminary study was done to assess the potential of this palm species as source for developing new food,and drink, and raw material for alcohol industry. The chemical content of its product (including starch and other derivates such as sugar and traditional alcoholic drink), are potentially promising for further source as new food, drink and alcohol industries. But overexploited action against Gewang, palem/ palm, Corypha utan Lamk., potensi/ potential, makanan dan minuman baru/ new food and drink, industri alkohol/ alcohol industry.this plant in its wild status, need further urgent steps to be developed in plots as a crop plant; whilen the future, these plots may be offered as assets for carbon emission (Kyoto Protocol) in global climate change through CDM(Clean Development Mechanism) programs.
ISOLASI DAN IDENTIFIKASI KAPANG ENDOFIT ASAL AKAR TANAMAN KUNYIT (Curcuma longa) SEBAGAI ANTIMALARIA Eris Septiana; Fauzy Rachman; Sylvia J.R. Lekatompessy; Harmastini I. Sukiman; Partomuan Simanjuntak
BERITA BIOLOGI Vol 17, No 3 (2018)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v17i3.3408

Abstract

Malaria is still the leading cause of death worldwide with nearly half the world's population at risk. Parasitic resistance to existing antimalarial drugs in the market makes the search for a source of new drugs from nature is very important. Therefore, the aims of this study are to determine in vitro antimalarial activity of endophytic fungi extract from turmeric root and to identify the selected isolate molecularly. Heme polymerization inhibition method was used as in vitro antimalarial assay. The selected isolate was thrn identified using ITS1, ITS2, and 5.8S sequences of rDNA. The result of this study obtained 16 isolates of endophytic fungi from root of turmeric plant with isolate code were of K.Cl.Sb.A1 - K.Cl.Sb.A16. All of the ethyl acetate extracts of isolated endophytic fungi have heme polymerization inhibition activity. K.Cl.Sb.A11 was the most active isolate on heme polymerization inhibition test with 94,31% at concentration of test material at 8 mg/mL and IC50 value at 1.84 mg/mL. Molecular analysis showed that K.Cl.Sb.A11 isolate was Penicillium sp. and potentially developed as an antimalarial drug.
PENGGUNAAN Chaetoceros calcitrans, Thalassiosira weissflogii DAN KOMBINASINYA PADA PEMELIHARAAN LARVA UDANG VANAME (Litopenaeus vannamei, Boone 1931) Amyda Suryati Panjaitan; Wartono Hadie; Sri Harijati
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1826

Abstract

The use of one type live food in the larval rearing of vannamei shrimp is insufficient for maximum larval development. This research was aimed to evaluate the use of phytoplankton Chaetoceros calcitrans and Thalassiosira weissflogii and its combination as food to the growth and survivorship of white pacific shrimp Litopenaeus vannamei. The research used prawn larvae at stadia Nauplius4-5 with 150/ litre larval density. The larvae were fed and their effects with 3 kinds of live food, C. calcitrans (A), T. weissflogii (B), and combination of both types (C) for each treatment with five replications.The data was analysed using SPSSV.16. Result showed that the survival rate for treatment A was of 55.04+11.81%, treatment B was of 68.22+6.80%, and treatment C was of 77.04+4.63%. This indicated that treatment A gave significantly different on survival rate (P<0.01) than treatment B and C. Treatment B and C were not significantly different (P>0.05). We recomended the use of combination both of C. calcitrans and T. weisflogii to provide maximum survival rate for vannamei shrimp postlarvae.
UJI PREFERENSI TUMBUHAN INANG BEBERAPA POPULASI KUMBANG LEMBING Epilaehna. aff. emarginata (COLEOPTERA; COCCINELLIDAE; EPILACHNINAE) Sih Kahono; Liliek Endang Pujiastuti; Naoyuki Fujiyama; Susumu Nakano
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.v6i3.1221

Abstract

Epilaehna sp. aff. emarginata had been considered as a specialist on Mikania micrantha (Compositae). However, recently its oceurrence on Leucas lavandulifolia (Labiatae) was reported. Preliminary field observations of some beetle populations showed that they had different on the host plant utilizations. However, the result was not sufficient to interpret the food preference of the beetles. These experiments weremade in order to clarify those previous observations.Experiments on adult food preference was investigated under uncontrolled room conditions.Four beetle populations (Bogor, Cibinong, Klaten and Malang) were subjected to choice tests offering Mikania micrantha (Compositae) and Leucas lavandulifolia. These experiments indicated that individual beetle has similar trend on food preference within each population. Bogor and Cibinong populations preferred to feed on both M. micrantha and L. lavandulifolia while. Klaten and Malang populations preferred exclusively on L. lavandulifolia. The populations showed different food preferences on the different geographical conditions of Java.
ANALISIS VEGETASI DAN ESTIMASI BIOMASSA STOK KARBON POHON PADA TUJUH HUTAN GUNUNG, SUAKA ALAM PULAU BAWEAN JAWA TIMUR Trimanto Trimanto
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.v13i3.676

Abstract

Bawean Island is one of the small islands in the northern province of East Java. The existence of a number of waterfalls, lakes and elevated plains indicates that the diversity of habitat types on the island is quite high. This research activity aims to determine the diversity and vegetation of tree and estimation of carbon stocks of tree in Bawean Island Nature Reserve. The study was conducted using transects and purposive sampling methods. Data were analyzed by calculating the importance value index and the Shannon-Winner diversity index. The study results showed that the vegetation of trees in the Nature Reserve and Wildlife of Bawean Island is high with the value of the Shannon Wiener index(H ') is hight (5.01). The results of the analysis of the tree vegetation is known that the highest IVI owned by Ficus variegata with an IVI of 36.4. Two other important species in the region is Irvingia malayana with an IVI of 21.1 and Myristica guatteriaefolia with an IVI of 16.4. The results of calculations of carbon stocks in Bawean Island Forest showed that the average carbon obtained was 150,71 ton C ha-1. The highest carbon stocks are Mount Kastoba forest and Lumut Mount Forest. Irvingia malayana is accounted for the largest carbon stocks (33.95 ton C ha-1).
DIVERSITAS DAN PROFIL METABOLIT SEKUNDER JAMUR ENDOFIT YANG DIISOLASI DARI TUMBUHAN GAMBIR (Uncaria gambler) SERTA AKTIVITAS BIOLOGISNYA SEBAGAI ANTIBAKTERI Yuliasri Jamal; Muhamad Ilyas; Atit Kanti; Andria Agusta
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.v9i2.2023

Abstract

Five kinds of endophytic filamentous fungi i.e. Pestalotiopsis sp. GNC, Fusarium sp. GNC-A, Fusahum sp. GNC-B, Pestalotiopsis sp. GUC and Fusarium sp. GUC were isolated from surface sterilized of steems of gambir nasi and gambir udang (Uncaria gambier Roxb.) collected from Rengat, Riau Province,Indonesia. Identification of the endophytic fungi were done through morphologically observations and chemotaxonomically approach. In an antibacterial assays, the ethyl acetate extract of the Pestalotiopsis sp.GNC cultures showed their activity against pathogenic bacteria, Eschericia coli, Staphylococcus aureus and Bacillus sublilis.Beside the above three pathogenic bacteria, the ethyl acetate extract of Fusarium sp. GNC-B culture was also active against
DISTRIBUSI DAN STRUKTUR POPULASI MACROBRACHIUM PILEMANUS (DE MAN) PADA BEBERAPA ANAK SUNGAI CISADANE LUCIA FIDHIANY
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.v3i3.1357

Abstract

LUCIA FIDHIANY. 1985. Distribution andpropulation structure of Macrobrachium pilimanus (De Man) at Cisadane river. Berita Biologi 3 (3) :125 - 127. Study on spatial distribution and population structure of Macrobrachium pilimanus was conducted at Cigombong River and Cisalopa River. Based on seven habitat types in a river pool, distribution pattern of the prawn contagious.The prawn is a torrent species, because it prefers running water with gravels and stones more than stagnant one.Based on the size frequency classes, the population are bi - or polimodal for the male, and unimodal for the female. Sex ratio is equal, but the quantity of larger male is greater than female that indicate sexual dimorphism.

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