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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
 187   188   189   190   191 
EKSPLORASI INFORMASI KEANEKARAGAMAN JENIS, POTENSI DAN PEMANFAATAN TUMBUHAN BAHAN PESTISIDA ALAMI DIPROPINSIJAWA BARAT DAN BANTEN Aseng Ramlan; Iin Supartinah Noer
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.v6i3.1209

Abstract

Pests, diseases and weeds are considered as organisms that limiting the agricultural productivity. Losses of agricultural productivity originated from the attack of these organisms may be up to 40% to 60%; sometimes in several cases failure of harvests occurred. So far, chemical (synthetic) pesticides are used to control the attack of these organisms. Meanwhile, the use of synthetic pesticides in fact, creates many negative effects on both biotic and abiotic environments, such as pollution against terrestrial and aquatic environments, even killing the vertebrates and husbandry animals, predatory insects, and some economic insects (insect species that benefit to the life of man). Due to the losses created by utilization of synthetic pesticides, therefore a number of scientists and farmers initiated to turn their attention to use the natural pesticides (directly originated from plants) under the light of back to nature principle, although this step is seems to be less effective.Some natural pesticides practiced by West Javan farmers are likely almost disappeared and difficult to be found in the field. It is important to mention some species here such as cujete/kalabas (Cresentia cujete), bratawali (linospora tuberculata), bitter yam/gadung (Dioscorea hispida), sambiloto {Andrographis paniculata), sarikaya {Annona squamosa) and so many more. Some weed species are known used by farmers as natural pesticide like saliara {Lantana camara), ki pahit (Tithonia diversifolia), alang-alang (Imperata cylindrical) and badotan {Ageratum conyzoides). This research is aimed to inventory plant species used by farmers as natural pesticides as to reduce the reliance on synthetic pesticides. Methods of approach to the problem are by library studies (journals, proceedings of seminars, notes etc), field survey and interview to farmers of several districts (Kabupatens) in West Java and Banten Provinces i.e. Sumedang, Majalengka, Sukabumi, Garut, Pandegelang and Serang. Result shows that there are still 130 plant species used as natural pesticides, and 42 natural (plant based raw materials) pesticide formulations used by farmers.
VALIDASI, DISTRIBUSI DAN PEMANFAATAN ACANTHACEAE DI JAWA Deden Girmansyah
BERITA BIOLOGI Vol 13, No 1 (2014)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v13i1.659

Abstract

Acanthaceae published in Flora of Java has had significant change especially for nomenclature, distribution and potential uses; thus it affected species names of collections of Acanthaceae in Herbarium Bogoriense of The Indonesian Institute of Sciences. It is therefore necessary to update information of Acanthaceae by conducting herbarium and field surveys as well as reviewing related publications. Validation of the species name, synonymous and distribution were carried out by using some online websites such as IPNI, Tropicos and The plantlist. Meanwhile, the potential uses were obtained from several publications. Examinations on herbarium specimens was conducted in the Herbarium Bogoriense, while field survey was carried out in several locations in Java. This study recorded a total of 164 species of Achantaceeae to which 53 were native in Java (Indonesia), 24 species become synonymous, and five other species have not been published. Some of them have potential chemical substances and uses.
INDUKSI KERAGAMAN SOMAKLONAL DENGAN IRADIASI SINAR GAMMA DAN SELEKSI IN VITRO KALUS PISANG RAJABULU MENGGUNAKAN ASAM FUSARAT, SERTA REGENERASI DAN AKLIMATISASI PLANTLET Endang G Lestari; R Purnamaningsih; I Mariska; Sri Hutami
BERITA BIOLOGI Vol 9, No 4 (2009)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v9i4.2012

Abstract

Pisang raja bulu is one of the most important bananas in Indonesia. However, this plant has low toleranee to wilt disease, caused by Fusarium oxysporum f. eubense. Its mass cultivation is inhibited by the absence of variety tolerant to the disease.A wide range of genetic variability will be needed if selection for novel characters is to be conducted, especially when there is no source of resistance gene available for breeding materials. This research consisted of callus induction from primary explant, induction of somaclonal variation using gamma iradiation, and in vitro selection using fusaric acid, followed by regeneration and acclimatization of selected plantlets. The media applied for callus induction was MS (Murashige and Skoog. 1962) + 2,4-D I and 3 mg/l + NAA 0 and 0.1 mg/l and 2,4-D 5 mg/l + BA 0.5 mg/l + Casein hidrolysate (CH) 500 mg/l. The applied gamma irradiation dosage were 0, 5.0. 7.5. 10 and 15 Gy. The irradiated calli was subsequently subcultures on selection media i.e.. MS containing fusaric acid at 30 and 45 mg/l. The living calli was then regenerated on media containing BA, TDZ. with or without proline and arginine. In addition. MS+ kinetin 5 mg/l + 1AA 0,2 mg/l was applied for shoot development. The result showed that the most suitable callus induction media for pisang raja bulu was MS +2.4-D 5 mg/l +BA 0.5 mg/l +CH 500 mg/l. The gamma irradiation of 10 Gy produced somaclone lines which were able to proliferate bud nodules on selection media containing fusaric acid at 30 and 45 mg/l. The media used for shoot development was MS + kinetin 5 mg/l + IAA 0,2 mg/l. Planllet obtained from the in vitro were then successfully acclimatized in the green house.
PENGARUH VARIETAS TAHAN PADI TERHADAP BEBERAPA SIFAT BIOLOGI WERENG PUNGGUNG PUTIH (SOGATELLA FURCIFERA HORVARTH) DI RUMAH KACA A. KARTOHARDJONO
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.v3i4.1346

Abstract

A. KARTOHARDJONO. 19S6. Effect of resistance rice varieties to some biological charaters of Whitebacked planthopper (Sogatella furcifcra Horvarth) in the green house. Berita Biologi 3(4): 185 -188. The objective of this study was to find resistance varieties and to observe some biological characters of whitebacked pianthopper (wbph) i.e 1 heir preference, number of eggs laid, number of food consume, population development and their survival in the resistance varieties.The study was conducted in the green house, Bogor Res.lnst. for lood Crops in the dry season 1983.Results from this observation showed that the number of wbph to stay,to lay eggs, to consunv".to develop as well as to survive on susceptible varieties are greater than those on resistent varieties.On the susceptible plant the development will be poor on the contrat with their growth on the resistant plant.Therefore, this resistant plant is good to be used to control wbph in the field.
PENGARUH MINYAK ATSIRI SERAI (Andropogon citratus DC.) TERHADAP BAKTERI YANG DIISOLASIDARISAPI MASTITIS SUBKLINIS Masniari Poeloengan
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.v9i6.847

Abstract

This study was done to determine the antibacterial properties of water extract and volatile oil of lemon grass (Andropogon citratus DC).Bacteria isolates used in this study were obtained from subclinical mastitis ridden cows and had been identified as Staphylococcus aureus, S. epidermidis, Streptococcus agalactiae and E. coli. The concentrations of water extract and volatile oil used for the test were %, 25%, 12,5% and 6,25%. The antibacterial used was done by paperdisk diffusion method on Mueller Hinton Agar (MHA). The result showed that water extract did not have any antibacterial effect to 4 bacteria isolates., while volatile oil of lemon grass did inhibit the growth of 4 bacteria isolates.Increasing concentration of volatile oil resulted in increasing zone of bacteria growth inhibition.
REPRODUCTIVE BIOLOGY OF STRIPED SNAKEHEAD (Channa striata Bloch, 1973) IN BOGOR AND BEKASI, WEST JAVA Adang Saputra; Muhamad Hunaina Fariduddin Ath-thar; Reza Samsudin; Fera Permata Putri; Vitas Atmadi Prakoso
BERITA BIOLOGI Vol 16, No 3 (2017)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v16i3.3015

Abstract

Striped snakehead is one of the potential local species, however, its production in Indonesia still comes from capture fisheries. Over exploitation had decrease the population in nature. Domestication is one of promising tool to solve the problems faced. In order to breed the domesticated species, the information of their reproduction was needed. This study aimed to describe relationship between length and weight, length and fecundity, weight – fecundity and gonad weight – fecundity of the striped snakehead from West Java. A total of 19 mature female specimens were collected from Parung (Bogor), and seven mature female specimens were collected from Babelan (Bekasi). The results showed that the determinant value (R2), the first for Parung and the second for Babelan, between weight and fecundity were 0.599 and 0.843, length-fecundity were 0.541 and 0.841; gonad weight – fecundity 1.00 and 0.846 Gonadosomatic Index (GSI) ranged from 0.67 to 9.94% and 2.03 to 8.17%. Gonad Index ranged from 6.17 – 76.73 and 18.48 – 76.77, respectively. The data indicated that growth pattern was allometric. Length and body weight has linear relationship with gonads and fecundity. Fecundity has higher correlation to the weight rather than length. Gonad weight and fecundity has a strong relationship.
KAJIAN KONSERVASI EBONI Ngakan Putu Oka
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.v6i2.1488

Abstract

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FROGS AND TOADS OF UJUNG KULON, GUNUNG HALIMUN AND GEDE-PANGRANGO NATIONAL PARK *Jenis-Jenis Kodok di Taman Nasional Ujung Kulon, Gunung Halimun dan Gede-Pangrango] Hellen Kurniati
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.v6i1.1172

Abstract

Selama survai herpetofauna di Taman Nasional Ujung Kulon yang dilakukan pada bulan Juli sampai September 1990 dijumpai 14 jenis amfibia; yang terdiri dari satu jenis dari suku Megophryidae, tiga jenis dari suku Bufonidae, tiga jenis dari suku Microhylidae, lima jenis dari suku Ranidae dan dua jenis dari suku Rhacophoridae (Kumiati el al.. 2001). Survai herpetofauna Iain terutama untuk kelompok amfibia pernah dilakukan Liem (1973) di Taman Nasional Gede-Pangrango. Survai tersebut berlangsung pada tahun 1961-1962, dan lebih intensif lagi dilakukan pada bulan Agustus 1963, Maret dan Mei 1964. Dari survai ini Liem (1973) mendapatkan 19 jenis amfibia; yang terdiri dari dua jenis dari suku Megophryidae, empat jenis dari suku Bufonidae, dua jenis dari suku Microhylidae, tujuh jenis dari suku Ranidae dan empat jenis dari suku Rhacophoridae. Untuk mendapatkan gambaran umum keanakaragaman herpetofauna dari tiga taman nasional yang terdapat di Jawa Barat, maka dilakukan survai herpetofauna di Taman Nasional Gunung Halimun; yang berlangsung intensif sejak bulan Oktober 2001. Dua puluh dua jenis amfibia didapatkan selama survai tersebut; yang terdiri dari dua jenis dari suku Megophryidae, empat jenis dari suku Bufonidae, satu jenis dari suku Microhylidae, sepuluh jenis dari suku Ranidae dan lima jenis dari suku Rhacophoridae. Indeks kesamaan Simpson digunakan untuk membandingkan keanekaragaman jenis antara dua taman nasional. Hasil indeks koefisien Simpson antara Taman Nasional Ujung Kulon dan Taman Nasional Gunung Halimun adalah 0,786; antara Taman Nasional Ujung Kulon dan Taman Nasional Gede-Pangrango adalah 0,786; dan antara Taman Nasional Gunung Halimun dan Taman Nasional Gede- Pangrango adalah 0,842. Berdasarkan kepada nilai indeks tersebut, kesamaan keanekaragaman amfibia di Taman Nasional Gunung Halimun dan Taman Nasional Gede-Pangrango sangat tinggi.
PENINGKATAN PERFORMA REPRODUKSI IKAN PATIN SIAM (Pangasianodon hypophthalmus) PADA MUSIM KEMARAU MELALUI INDUKSI HORMONAL Evi Tahapari; Raden Roro Sri Pudji Sinarni Dewi
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.v12i2.533

Abstract

Striped catfish (Pangasianodon hypophthalmus) spawning success is strongly influenced by environment.Striped catfish spawning generally occurs during the rainy season while in the dry season is difficult to find mature female. This research was conducted to improve reproduction performance of female striped catfish during dry season through combination injection of hormone pregnant mare serum gonadotrophin (PMSG) and human chorionic gonadotrophin (HCG).The treatments were A : control (no hormone injections), B : injection of PMSG 10 IU/kg + HCG 10 IU/kg and C : injection of PMSG 20 IU/kg + HCG 10 IU/kg.Injections were done at interval of two weeks as many as six times. The research was conducted during dry season in June-October 2012 with rainfall 0.20- 14.40 mm/years. The results showed combination injection of PMSG + HCG could improve female reproduction performance. The best treatment was shown on C treatment with values of OSI (ovi somatic index), fecundity, fertilization rate, hatching rate and larva production was 12.18 %, 523 000 eggs/female, 79.65 %, 69.93 % and 290 000 larvae/female respectively. As for control treatment (A) the value of OSI, fecundity, fertilization rate, hatching rate and larval production, was 6.45 %, 197 000 eggs/female, 48.55 %, 35.59 % and 34 000 larvae/female, respectively
RESPON TANAMAN PADI GOGO (Oryza sativa L.) TERHADAP STRESS AIR DAN INOKULASI MIKORISA Harmastini Sukiman; Adiwirman Adiwirman; Syofiatin Syamsiyah
BERITA BIOLOGI Vol 10, No 2 (2010)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i2.1979

Abstract

It has been known that upland rice production is lower than low land rice production because it is inhibited by soil fertility, water supply and pest.One solutions to increase the production of upland rice is by applying the potential soil microorganism known as mycorrhizae.The objective of this research is to know thef Vesicular Arbuscular Mycorrhizae (VAM) role for upland rice under water stress condition. The research was conducted in greenhouse of Cikabayan, Bogor Agricultural University and Soil Microbiology Laboratory of Research Centre of Biotechnology, Indonesian Institute of Science Centre. The experimental design was factorial randomized block design with two factors. The first factor is inoculation of mycorrhizae consisted of two treatment i.e. without mycorrhizae (MO) and with mycorrhizae (Ml); while the second factor is water stress regime consisted of five treatments namely well watered (SO), water stress on tillering stage (SI), primordial stage (S2), anthesis stage(S3) and grain filling stage(S4). Mycorrhizae significantly increased root infection, phosphate uptake, height, number of tillering, leaf, Leaf Area Index (LAI), productive tillering, filled grain, grain weight and yield. While, water stress significantly decreased number of root infection, shoot wet fresh weight, root dry weight, increased phosphate uptake and sterilized grain, but it didn't significantly decrease yield. The interaction both mycorrhizae and water stress didn't significantly influence all variables, except the root dry weight. The inoculation of mycorrhizae could increase 19.62% on SI, 17.32% on S2, 29.14% on S3, 6.89% on S4 dried harvested yield.

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