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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
 188   189   190   191   192 
PENGARUH PENGERINGAN DAN SUHU PENYIMPANAN TERHADAP DAYA HIDUP BIJI KEMUNING (MURRAYA PANICULATA) N. WULIJARNI; SOETJIPTO SOETJIPTO
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.v3i8.1313

Abstract

N.WULIJARNI-SOETJIPTO.1988. Effect of drying and storage temperature on the viability of kemuning(Murraya panicuhta) seeds, Berita Biologi 3(8): 424 - 429.Seeds of kemuning {Murraya paniculata (L.) Jack) were dried under room temperature (28°±2°C),and then stored for a duration of 9 weeks at 28°, 10°, 4° and - 10°C. The seeds remained fully viable when the moisture content was reduced to 5%. After storage at 10° or 4°C the seeds having 5% moisture content remained almost fully viable.Their viability decreased to around 60% at - 10°C, and less than 40% at 28°C.Seeds having higher moisture contents still maintained their viability after being stored at 10°C. However, they lost their viability when stored at higher or lower temperatures.It appeared that the seeds contained much higher percentage of saturated fatty acids compared with the unsaturated fatty adds. It is concluded that the kemuning seeds do not tend to follow the behaviour of true orthodox seeds,since they do not seem to withstand subfreezing temperature although they may toleratev drying.
PERAN ILMU BIOTAKSONOMISERANGGA DALAM PEMBANGUNAN PERTANIAN BERKELANJUTAN DI ERA GLOBALISASI Sri Suharni Siwi
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.v8i1.811

Abstract

Diagnostic materials have been recently faced by more complexity species due to the evolution's accelerated in agro ecosystem.Biotaxonomy is needed for searching solutions technology of sustainable agriculture, and anticipating problems that may appeared during the agricultural development proses. Biotaxonomy is a tool for integrating biological aspects, beginning of inventory, description, cataloging, study of distribution and the perspective evolution. The contribution to applied sciences has often supplied the key to the solution of problems for IPM and biological control provided accurate identification of the exact country of origin of insect pests and their total fauna of parasites and predator. Since the establishment of the World Trade Organization in 1995, volume and intensity of trade in agricultural product increased tremendously. To prevent the entry or spread of a pest, rules based on health and safety ground had been set out internationally under the agreement on the Application of Sanitary and Phytosanitary Measures (the SPS Agreement). In the context of international trade, the exporting country obliged to provide a list of pests likely to be associated with the commodity to be able importing country to conduct pest risk analysis and establish phytosanitary regulations. In order to meet these obligations, however, the developing countries have not benefited as developed countries, due to unabilily to provide an adequate description of health status of agricultural industries and pest-records based on voucher specimens held in properly well curated collection. The extensive specimen-based pest record held in the reference insect collection Bogor is an asset national that can provide the most reliable evidence of the plant health status of the country that have been long time ago neglected. The collection can provide a country with a powerful tool to assist bids for market access and to justify measures to exclude potentially harmful exotic pests entering the country. Therefore, such insect collection should be security well managed, and database digitally for easily accesses. Sectors of interest should worked together to realize that hopes. Without such efforts, global policy market has just only more impoverish our farmers and the possibility our commodities products pursued internationally on the other hand our local markets felled with product commodities import as has been seen at this time.
VARIASI DAN DEGRADASI SUARA PANGGILAN KODOK JANGKRIK [HYLARANA NICOBARIENSIS (STOLICZKA, 1870)] ASAL PULAU ENGGANO (ANURA: RANIDAE) Hellen Kurniati; Amir Hamidy
BERITA BIOLOGI Vol 15, No 3 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i3.2293

Abstract

Frog’s group of Hylarana nicobariensis (Stoliczka, 1870) is a complex species that has diverse genetic populations and variations on advertisement calls. Variations on advertisement calls among populations have been reported in Sumatra, Java and Bali. The population of frog in Enggano has different phenomenon that was not found in Sumatra and Java.  Enggano population was genetically identical, but the advertisement calls were very diverse. There were four types of advertisement calls on the population in Enggano Island, namely: (1) advertisement call type 1 which has pulse wave with the dominant frequency of 2855.13 ± 135.22 Hertz; (2) advertisement call type 2 which has pure tone wave with the dominant frequency of 2720.29 ± 97.69 Hertz; (3) advertisement call type 3 which has pulse wave with dominant frequency 2634.61 ± 292.81 Hertz; (4) advertisement call type 4 which has pure tone wave with dominant frequency 1618.79 ± 83.05 Hertz. The degradation of the dominant frequency and the lower frequency was likely due to the increase of snout to vent length (SVL) of adult male that were followed by increasing the size of the head.
PROSPER PENGEMBANGAN CENDANA DI NUSA TENGGARA TIMUR Oemi Hani'in Suseno
BERITA BIOLOGI Vol 5, No 5 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i5.1454

Abstract

Cendana (Santalum album L.) merupakan spesies asli Indonesia yang sebaran geografisnya terutama di kepulauan Nusa Tenggara Timur (NTT). Pemasaran kayu cendana tidak sulit, bahkan sampai pada saat ini jumlah produk masih jauh dari jumlah yang dibutuhkan sehingga masih luas peluangnya untuk dikembangkan. Hutan cendana di NTT dapat diwujudkan serta dapat ditingkatkan kualitas dan kuantitasnya dengan memperhatikan beberapa aspek (1) sejak awal problematika pembangunan hutan sudah diantisipasi, (2) dilakukan upaya konservasi genetik in-situ dan ex-situ, (3) dilakukan studi variasi benih dan kegiatan pemuliaan pohon untuk menghasilkan bibit unggul, (5) pengadaan SDM profesiona! dengan pelatihan-pelatihan pada berbagai tingkat petugas. Pada hakekatnya bekal ilmu kita sudah cukup (dari pengalaman penelitian untuk mewujudkan tegakan cendana yang Iayak. Namun pada kenyataannya hamparan cendana yang luas belum kita jumpai,karena berbagai kendala yakni (1) tidak ada motor penggeraknya sehingga tidak serius, (2) sedikitnya lahan yang tidak bermasalah, (3) segan karena umumya panjang, (4) ancaman api (kebakaran), (5) ancaman temak dan satwa lainnya, (6) ancaman perladangan berpindah, (7) sumber benih belum tersedia, (8) SDM belum siap, (9) peralatan masih kurang efisien, dan (10) dana tidak kontinyu dan tidak tepatwaktu atau bahkan belum tersedia. Dalam mengembangkan kembali cendana di NTT, perlu diperhatikan beberapa permasalahan khusus setempat, yakni (1) musim hujan sangat singkat sehingga penanaman harus dilakukan awal musim hujan dengan menggunakan bibit yang tepat, (2) persiapan penanaman dilakukan dengan baik meliputi ukuran lobang, perimbangan pupuk dasar dan mulsa, (3) pemagaran, (4) pembuatan jalur kebakaran, (5) diadakan jalur isolasi, (6) lokasi tidak ber masalah, (7) pelatihan untuk membentuk SDM dan (8) sosialisasi terhadap masyarakat luas terutama masyarakat NTT. Sumber benih sebaiknya dari Kebun Benih atau diambil dari pohon-pohon yang fenotipe superior. Diperlukan pula uji provenans di berbagai lokasi tempat pohon cendana akan dikembangkan.
SUKSESI SEKUNDER PASCA TEBANG PILIH HUTAN PAMAH DIPTEROCARPS DIDESA TAILELEU, TAMAN NASIONAL PULAU SIBERUT, SUMATERA BARAT Herwint Simbolon
BERITA BIOLOGI Vol 5, No 4 (2001)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i4.1126

Abstract

A study on the tree diversity and secondary succession after selective logging of lowland mixed dipterocarps forest has been conducted at three sites (Mongakngai, Kaloat, and Taipah) of Taileleu Village, Siberut Island National Park, West Sumatra. Plot size at each Mongakngai, Kaloat and Taipah site was: 100 x 30m; 100 x 40m; and 100 x 50m,respectively. Tree plants with DBH of more than 10 cm at each site were 50, 47 and 42 (or 101 species in total), while small tree plants of 2-10cm in DBH were 78, 11 and 98 (or 203 species in total), respectively. The most dominant species were Ficus subcordata, Aphorosa sphaeridophora and Castanopsios rhamnifolia at each site, respectively. Based on the similarity indices, those sites were clustered. Species diversity and structure of the forest at each site were also discussed in relation to the natural succession of forest.
NILAI KEPENTINGAN BUDAYA KEANEKARAGAMAN JENIS TUMBUHAN BERGUNADI HUTAN DATARAN RENDAH BODOGOL, SUKABUMI, JAWA BARAT Mulyati Rahayu; Y Purwanto; Siti Susiarti
BERITA BIOLOGI Vol 11, No 3 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v11i3.501

Abstract

Index Cultural Significance (ICS) of useful plants diversity in ethnobotanical study is an importance step, such as activity strategy which have subsystem aspect and traditional classification. Ethnobotany study in Bodogol lowland forest, West Java recorded more than 200 useful plants species within 3 times visits in 2009 to 2010. Data collection was done by “walk in the wood”,interview method, direct observation in permanent plots and estimation of Index Cultural Significance (ICS) form.Result of the study indicated that indigenous people around Bodogol lowland forest has good knowledge about biodiversity around them. Based on interview method, this study showed that indexs cultural significance of useful plants in this area was in the range of 0.5 and 86. Kawung {Arenga pinnata (Wurmb) Merr.} has highest ICS whilst Acung leutik (Arisaema filiforme Bl.) is the lowest.
KINERJA PERBEDAAN SALINITAS TERHADAP RESPON PERTUMBUHAN DAN GAMBARAN DARAH BENIH IKAN TAMBAKAN (Helostoma temminckii) Lies Setijaningsih; Imam Taufik; Deni Radona; Mulyasari Mulyasari
BERITA BIOLOGI Vol 19, No 1 (2020)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v19i1.3003

Abstract

Water salinity is a crucial factor in Kissing Gourami (Helostoma temminckii) culture. Therefore, information regarding suitable and optimum medium for the ecophysiological requirement of fish is needed. Salinity is one physiological factor that affects both the survival and growth rate of fish as it is related to the osmoregulation process. The purpose of this study was to analyze the effect of different water salinity on, growth, survival rate, osmotic activity and blood picture of Kissing Gourami seed nursery. Fish was cultured in various salinity levels: 0 ppt (A), 1 ppt (B), 3 ppt (C), and 5 ppt (D). Salinity level significantly affected the survival rate, absolute weight growth, absolute length growth, specific growth rate, and blood picture of Kissing Gourami seed nursery. It was found that the Kissing Gourami seeds had the optimum growth on the salinity of 3 ppt, that was further shown by 82,00% of survival rate, 2,42% ±2,81 g/day of specific growth rate obtained. The results showed a positive correlation of the biological value of fish with the content of osmotic gradient, blood glucose, hematocrit, hemoglobin, erythrocytes amount, and water quality parameters (dissolved oxygen, temperature, pH, and ammonia). 
INDUKSI KALUS DAN EMBRIOGENESIS SOMATIK IN VITRO PADA LAMTORO (Leucaena leucocephala) Yusri Sapsuha; Djoko Soetrisno; Kustantinah Kustantinah
BERITA BIOLOGI Vol 10, No 5 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i5.1921

Abstract

This research is aimed to determine the effect of various concentrations (0, 1, 2, 3, 4 and 5 mg/l) of 2,4-D (dichloropenoxy acetic acid) on callus induction of Lamtoro (Leucaena leucocephala) and its somatic embryogenesis stimulated using different concentrations of 0, 0.5, 1.0, 1.5 and 2.0 mg/l of growth regulators, namely NAA (Naphthaleneacetic acid) and kinetin. Percentage of callus were measured and somatic embryogenesis from callus were subjected to description analysis. The results showed that callus percentage were varied from 29.34% (1 mg 2,4-D/l) at first week (white color and crumb) to 83.67% (4 mg 2,4-D/l) at fourth week (white yellowish color and compact), and embryo somatic varied from 19.33±2.52 (2 mg NAA and 0 mg kinetin/l) to 81.33±11.50 (1.5 mg NAA dan 2.0 mg kinetin/l). It can be concluded that optimum callus induction (83.67%) was recorded when concentration of 2,4-D was given at the rate of 4 mg/l. The largest number of embryos in concentration of 1.5 mg/l NAA and 2.0 mg/l kinetin, and embryo somatic 81.33±11.50.
IDENTIFIKASI KERUSAKAN TUMBUHAN INANG OLEH PARASIT Dendtopthoepentandra (L.) Miq. (Loranthaceae) : SEBUAH STUDI KASUS DITAHURA BENGKULU Sunaryo Sunaryo
BERITA BIOLOGI Vol 4, No 2&3 (1998)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i2&3.1280

Abstract

The Mistletoe o/Dendrophthoe pentandra (Loranthaceae) growing on several plant collection at Taman Hutan Raya Bengkulu.Thirty one infected and uninfected branches of five host species were observed, i.e.Archidendron bubalinum(Leguminosae),Rhodamnia cinerea (Myrtaceae),Dillenia excelsa (Dilkniaceae),Aporosa aurita (Euphorbiaceae) and'Vitex pinnata (Verbenaceae).The results showed that the host tissue can be destroyed through penetration and development of primer haustorium.Moreover, in the natural conditions, the mistletoe causes degradation of the distal part of the infected branches.
HUBUNGAN TRANSPIRASI DENGAN HASIL DAN RENDEMEN MINYAK BIJI JARAK PAGAR (Jatropha curcas L.) Charles Y Bora; E Sulistyono; S Yahya; Z Mahmud
BERITA BIOLOGI Vol 9, No 3 (2008)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i3.779

Abstract

The objective of this research was to evaluate the relationship between transpiration, yield and seed oil content of jatropha/jarak pagar (Jatropha curcas L.). The research was conducted at Cikabayan Research Garden of IPB July 2007-July 2008.The experimental design was Randomized Block Design with two factors and three replications. The first factor was genotype of Jatropha: IP-1A, IP-1M and IP-IP. The second factor was irrigation frequency: 7, 14, 21 and 28 days.The observed variables were evapotranspiration and yield component.The results show that the irrigation frequency of 7 days gave a higher evapotranspiration and transpiration rate than 14, 21 and 28 days irrigation frequencies. The differences affected yield component of each genotipe. The interaction effects between genotype and irrigation frequency were fruit number per plant. The transpiration positively and strongly related to fruits number, seed productions and oil production. Increased transpiration was followed by increasing on fruit number 0.014 (0.112 fruits/1/plant) for IP-1A and 0.024 (0.183 fruits/1/plant) for IP-IP; and increasing by 0.029 g (0.23 g/1/plant) for IP-1A and 0.024 g (0.19 g/1/plant) for IP-IP in seed productions. The transpiration correlated to oil production but not to oil content. Each mm of transpiration increased the oil production 0.0094 g (0.075 g/1/plant) for IP-1A and 0.0073 g (0.058 g/1/plant) for IP-IP. Water use of IP-IP genotype was more efficient than IP-1A in fruits number, but the IP-1A genotype more efficient in seed and oil productions. The differences on growth and yield responses of the jatropha genotypes to transpiration can be used as the model to describe the relationship between transpiration and growth and yield of the plant.

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