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BERITA BIOLOGI

berita_biologi
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Published by Lembaga Ilmu Pengetahuan Indonesia

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Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Articles 2,125 Documents

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PENGARUH LAMA PENYIMPANAN TERHADAP PERKECAMBAHAN BIJI SAMBILOTO (Andrographis paniculata (Burm.f.) Wallich ex Nees) [Effect of Seed Storage Duration on Seed Germination of sambiloto (Andrographis paniculata (Burm.f.) Wallich ex Nees] Solikin, Solikin
BERITA BIOLOGI Vol 15, No 2 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Sambiloto (Andrographis paniculata (Burm.f.) Wallich ex Nees) belongs to family Acanthaceae is a potential medicinal plant that long traditional (jamu).This research aimed to determine the effect of storage duration on seed germination of sambiloto. The study was conducted in a glass house of Purwodadi Botanic Garden from May 2013 - May 2015. The experiment used completely randomized design with treatments of seed storage duration, namely: S0 = no stored ; S1 = stored for 5 months ; S2 = stored for 9 months ; S3 = stored for 12 months S4 = stored for 18 months and S5 = stored 24 months. The treatments was replicated five times with 100 seeds for each replication. The seeds were sowed on river sand medium sifted with 2 mm sieve mess at about 0.5 cm deep, in polybags (15x10 cm). The polybags were placed in a plastic box 38 x 28 x 13 cm and covered by transparent plastic and black paranet. Variables observed were time, percentage and rate of the seeds germination. The results showed that the seed storage duration had significant effect on the seed germination percentage and rate of sambiloto. The highest seed germination percentage and rate was reached on treatment of 18 months storage duration (S4) with value 91.40 % and 10.72 days respectively. The slowest early seed germination was reached on the treatment S0 (no stored) namely 28,40 days after sowing.Â

PERFORMA BAKTERIPADATANAH TERCEMAR PESTISIDA Rahmansyah, Maman; Sulistinah, Nunik
BERITA BIOLOGI Vol 9, No 6 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Preliminary study on bacterial survive in soil containing pesticide has been carried out. Soil samples collected from Lembang and Dieng. The soil deprive from agriculture area that intensively using pesticide, and compared to other samples gathered from forest soil. All samples examined for total bacteria, denitrification bacteria, phosphate solubilizing bacteria, soil induce respiration, urease and phosphatase activities. Pattern of whole parameters in each soil sample configured similarly, but the value performed differently in the same parameters. Total bacterial population in soil samples also inspected after the samples amended with some certain pesticides. Survival bacteria subjected to media amended with insecticide (Propoxur, Diazinon, and Chlorpyrifos), and herbicides (Bromacil and 2,4-D), and correlation of bacterial growth between sample location were varied. Bacterial degrading pesticide particularly isolated from the soil samples containing 1000 ppm Curzate (fungiside) and 500 ppm 2,4-D.The isolates then cultured in the medium containing insecticide and herbicide, and the response on growth observed in 7 days incubation. Bacterial perform were meaningful to reference of soil degrading pesticide residue in agriculture soil; and it would make representative reference in an effort to use bacteria throughout biofertilizer improvement.

KOMPOSISI MINYAK ATSIRI DARI TIGA JENIS TUMBUHAN RUTACEAE [ Composition of Essential Oils from Three Rutaceae Species Plant] Agusta, Andria; Jamal, Yuliasri
BERITA BIOLOGI Vol 4, No 5 (1999)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Rutaceae is one of the essential oil resources that is very potential for medicinal, perfumery and other use This study was conducted to analyze the essential oil components resulted from water distillation of kalamanjarik leaves (Micromelum minutum), jeruk epara leaves ILimnocitrus litoralis) and the leaves and the stem bark of malapotung (Evodia qlabra). The results showed the leaves of kalamanjarik contained approximately 0,70%, jeruk jepara 0,21%, malapotung leaves 0,17% and the stem bark contained 0,50 % essential oils. GCMS analyses of the essential oils gave 3 major components of kalamanjarik leaves i.e /J-pinene (24,41%j, bergamiol (23,01%) and nerolidol (18,90%) and 2 major components of jeruk jepara leaves i.e fl-mircene (70.55) and /t-pinene (24,06 %). Essential oil of malapotung leaves consisted of 39,8J% ct-pinene, 14,26 % 1aR(1aa,4a/3,7a,7aa,7ba)decahydro -1,1,7-lrimethyl-4-methylene-1H-cycloprope azulene and 16,62% S-cadinene as major components, while the stem bark had only one major component, u-pinene (68,37 %) The minor components of the four essential oils will be discussed.

PENYIMPANAN SERBUKSARI PISANG LIAR Musa acuminata Colla UNTUK MENDUKUNG PROGRAM PEMULIAAN PISANG BUDIDAYA [Pollen Storage of Wild Varieties of Musa acuminata Colla Ensuring Pollen Source for Cultivated Banana Breeding Program] Rachman, Erlin; Poerba, Yuyu Suryasari; Ahmad, Fajaruddin
BERITA BIOLOGI Vol 11, No 2 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Research on pollen storage of four varieties and one subspecies of wild banana, Musa acuminata Colla, was carried out to support genetic improvement of banana cultivars through hybridization. The four wild varieties, breviformis, zebrina, malaccensis, bantamensis and a subspecies banksii cultivated at Cibinong Science Center (CSC-LIPI), Cibinong. Anthers were collected, put on bread paper,dried on hot plate at 40ÂºC for about two hours, open dried at room temperature in the laboratory (about 26ÂºC) for overnight, prepared for storage in two ways: -using and, -without silica gel, then stored in three storage temperatures, -5ÂºC, 5ÂºC and room temperature. Pollen germination was observed one day before storage, one week, four or five weeks and 12 weeks of storage. At the beginning, M. acuminata ssp banksii had highest pollen germination percentage, followed respectively by varieties bantamensis, breviformis, malaccensis and zebrina. The pollen germination ranks for the five banana varieties were remaining constant up to 12 weeks of storage though pollen germination dynamics occurred week by week. Silica gel may be recommended to be used until 5 weeks of storage. Storage temperature of -5ÂºC and 5ÂºC may be recommended as better storage temperature compared to room temperature. No special pattern shown by pollen tube vigor, but subspecies banksii pollen stored without silica gel, at 5ÂºC and room temperature tends to form better pollen tube vigor than stored at -5ÂºC.

RESPON PERKECAMBAHAN BENIH SORGUM {Sorghum bicolor (L.) Moench} TERHADAP PERLAKUAN OSMOCONDITIONING DALAM MENGATASI CEKAMAN SALINITAS Rini, Dwi Setyo; Mustikoweni, Mustikoweni; T, Surtiningsih
BERITA BIOLOGI Vol 7, No 6 (2005)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The research was undertaken in two experiments. The first experiment was carried out to find out the germination capacity and vigor of sorghum seeds that consisted of four varieties namely Rio, Mandau, Sangkur and Keris. The second experiment was to determine the response of two sorghum varieties which had good germination capacities and so vigorous from the first experiment by osmoconditioning treatments. The growth media is saline soil with NaCl content 8.61% and pH 8.2. The osmoconditioning treatments were soaking seeds in each Na,SO4 0.2 M, NH4C1 0.2 M, KNO3 0.2 M solution for 48 hours and untreated sorghum seeds served as the control. The results showed that there was no interaction between varieties of sorghum seeds and osmoconditioning treatments on germination percentage but osmoconditioning treatments with Na,SO4 0.2 M and NH4C1 0.2 M could promote germination percentage of sorghum seeds on saline condition.

SPATIAL MODEL OF SUMATRAN TIGER (Panthera tigris sumatrae) POTENTIAL HABITAT SUITABILITY IN BUKIT BARISAN SELATAN [Model Spasial Kesesuaian Habitat Harimau Sumatra (Panthera tigris sumatrae) di Taman Nasional Bukit Barisan Selatan, Indonesia] Suyadi, Suyadi; Jaya, I Nengah Surati; Wijanarto, Antonius B; Wibisono, Haryo Tabah
BERITA BIOLOGI Vol 11, No 1 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

This study describes on development of habitat suitability for Sumatran tiger in Bukit Barisan Selatan National Park (BBSNP). In this study remotely-sensed data set were linked with tiger and it prey survey using camera trap to identify the environmental and human factors that influences the tigers potential habitat, and to develop a spatial model as well as in BBSNP. All at once, the study showed that the potential model for estimating the tigers potential habitat suitability could be developed using environmental and human factors. The most significant factors that influence the tiger habitat suitability in Bukit Barisan Selatan National Park are human factors such as distance to road and distance to forest edge and the environmental factor i.e. the number of tiger prey. The verification of the model shows that the model is capable to estimate the probability of the tiger presence having accuracy of approximately 78%. The model shows that there is no significant difference between the predicted data and actual data and having mean deviation less than 10%.

PENGARUH CENDAWAN Trichoderma sp. TERHADAP TANAMAN TOMAT PADA TANAH ANDISOL [Effect of Fungus Trichoderma sp. on Tomato in Andisol Soil] Subhan, Subhan; Sutrisno, Nono; Sutarya, Rahmat
BERITA BIOLOGI Vol 11, No 3 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

An experiment to determine the effect of Trichoderma fungus application in tomato grown in andisol soil, was conducted at IVEGRIâs (Indonesian Vegetable Research Institute) Experimental Garden in Lembang, Bandung, West Java (1250 m asl) from April 2011 until July 10 2011. Two treatments factos i.e. factor (1) Trichoderma application (without and using Trichoderma 10 fungi per plot and factor (2) NPK (15-15-15) fertilizer rate (0, 250, 500, 750 and 1000 kg NPK (15-15-15)/ha) were arranged in randomized block design with 4 replications. The results showed that although P uptake in tomato increased with Trichoderma sp. application, in general Trichoderma sp. application did not significantly affected several growth parameters and yield component of tomato. Significant effect of Trichoderma sp. application was only increased in total plant dry weight at 63 days after planting. The use of NPK (15-15-15) fertilizer 250 kg NPK/ha increased significantly on total plant dry weight and yield component such as total fruit weight per plot and fruit number per plot (15 m ).

VARIASI MORFOLOGI JENIS INANG Subulura andersoni Cobblod, 1887 DI INDONESIA DAN DESKRIPSI Subulura sipiroki n.sp. Purwaningsih, Endang
BERITA BIOLOGI Vol 6, No 4 (2003)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Subulura andersoni (Nematoda:Â 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 ofÂ Subulura sipiroki n.sp. recovered from Leopoldamys sabanus in Sumatera also described.

PERILAKU PERTAHANAN DERI KUMBANG KUYA MAS ASPIDOMORPHA SANCTAECRUCIS FABRICIUS (CHRYSOMELIDAE, CASSEDEVI) TERHADAP SEMUT PADA POMOEA CARNEA AUCT Noerdjito, Woro A; Ito, Fuminori; Nakamura, Koji
BERITA BIOLOGI Vol 5, No 1 (2000)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v5i1.1098

Ants are of high density on the host plant of golden tortoise beetle, Ipomoea carnea, and are being attracted by extrafloral nectaries on petiols.They are important predators of immature stages (eggs, larvae and pupae) of the beetles.The experiment was aimed to know how the golden tortoise beetles defense themselves against ants on I. carnea.The results indicated that golden tortoise beetle,both larvae and adults showed odd habits.They have a specific external organ, a protective camouflage with excreta of the larvae and oviposition strategy.The ant-beetle interaction on the host plants are discussed.

PERTUMBUHAN DAN AKUMULASI MERKURI BERBAGAI JENIS TUMBUHAN YANG DITANAM DI MEDIA LIMBAH PENAMBANGAN EMAS DENGAN PERLAKUAN BERBAGAI TINGKAT KONSENTRASI MERKURI DAN KELAT AMONIUM TIOSULFAT Juhaeti, Titi; Hidayati, N; Syarif, F; Hidayat, S
BERITA BIOLOGI Vol 9, No 5 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Gold mining activities have recently increased in many areas. Contamination with heavy metals, mainly mercury due to illegal mine (PETI) have been in concern to residents around the area. One approach to remediate risks from some toxic metal pollutants is phytoextraction using hyperaccumulator plants. These remarkable plant species accumulate appreciable high concentrations of metals than do normal plants when the normal plants suffers yield reduction from metal phytotoxicity. Possible solution of using indigenous plants for phytoremediation has been studied. Performance of four selected plant species i.e Paspalum conjugatum, Centrosema pubescens, Commelina nudiflora and Mikania cordata were examined. In this study the plants were grown in PETI waste media contaminated with 25.733 ppm mercury (Hg), added with mercury (II) chloride (HgCl2) with different levels of concentrations i.e. 0 ppm Hg (HO), 10 ppm Hg (H10) and 20 ppm Hg (H20). To increase mercury uptake from the media, chelating agent, ammonium thiosulfat (NH4),S2O, was applied with concentration of 0 ppm (KO) dan 50 ppm (50). Plants biomass and mercury accumulation in plant shoots and roots were assessed at one and two months after treatments. The results showed that all of the plant species under study were highly tolerant to Hg. It was indicated by plant normal performances and high biomass production even in the highest level of Hg concentration and high Hg accumulation in the plant shoot and roots that reached 41.860 ppm in the shoot of P. conjugatum (H10 with chelate), 40.054 ppm in the shoot of C. pubescens (H20 no chelate),41.089 ppm in the shoot of C. nudiflora (H10 no chelate) and 42.610 ppm in the shoot of M. cordata (H10 no chelate). At the highest concentration levels of Hg under study there was no effects of toxicity on the plants, indicated by normal plant growth and high biomass production. Higher accumulation of Hg were found in the plants treated with higher level of Hg concentrations.

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