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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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KARAKTERISTIK GAMBUT RAWA PENING DAN POTENSINYA SEBAGAI BAHAN PEMBAWA MIKROBA Prihastuti Prihastuti
BERITA BIOLOGI Vol 12, No 3 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i3.640

Abstract

This is a descriptive analytical research to describe characteristic of peat soils of Rawa Pening (a natural lake in Central Java, Indonesia). The purpose of this study was to determine the potency of peat soils as a microbial carrier. The parameters observed were chemical properties (pH, levels of C, N, P, K and CEC) and biological properties (total of soil microbial population), as well as its amendments by sun drying,ovens drying and sterilization process by autoclaving (121oC, and 1.5 atm for 15 minutes). The results showed that the Rawa Pening peat soil content consisted of high organic C, medium-high N, low-medium P, high K and high CEC. Total of soil microbial population was quite high, but it was reduced by sun drying and autoclave sterilization. The population of soil microbial was pressured by oven drying, but the process makes it a low pH caused by cell lysis. The Rawa Pening peat soils had physical properties that were not easily changed, is also not prone to changes in pH during the process by sun drying and sterilization by autoclave. It was concluded that the Rawa Pening peat soils have a potential to be a microbial carrier, since it contained high organic matter, and relatively easy to process.
PENGARUH PEMUPUKAN BERIMBANG TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KENTANG (Solatium tuberosum L.) VARIETAS GRANOLA Syafri Edi; Endrizal Endrizal
BERITA BIOLOGI Vol 10, No 6 (2011)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v10i6.1935

Abstract

Potato is one of the main vegetables in Kerinci District. Development of potato plants is supported by the availability of land, agro ecosystem, labor and market opportunities as well as conductive local government policies. Potato farmers do not fully implementing the recommended farming technologies, such as the use of good seed, balanced fertilizer, crop rotation, pest control, harvesting and post harvest, so the production and reception of farmers is still low. The research took place in Mount Seven Village, Pelompek Kerinci District, Jambi Province which is background by agro-ecosystem dryland upland wet climate (LKDTIB), with soil type andisol at an altitude of 1400 m above sea level. The study aimed to see the effect of balanced fertilization on the growth and yield of potato. Potato used is Granola variety fourth generation derived from the Parent Seed Potato Institute in Kayu Aro. Assessments carried out from February until July 2008, with the treatment as follows: Introduction Package (A): SP-36 450 kg, 200 kg Urea, ZA 200 kg, 300 kg of KC1, NPK 100 kg and 10,000 kg of organic fertilizer/ha. Farmers Package (B): SP-36 750 kg, 400 kg Urea, 250 kg of KC1, and 400 kg NPK /ha. Fanners Package (C): SP-36 600 kg, 300 kg ZA, KC1 300 and 400 kg NPK /ha. The results showed that Package (A) gives the results of 24,320 kg /ha, higher than package (B) with the results of 18,240 kg/ha, while the Fanners Package (C) get the 19,520 kg/ha. High yield Package (A) is supported by the controlled growth of plants, the intensity and the population of pests and diseases and relatively more yield components than Package(B) and Package (C).
PENGARUH SUKROSA DAN GLUTAMIN PADA KULTUR ANTER Solatium khasianutn CLARKE Djunaedi Gandawidjaja
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&3.1285

Abstract

Effect of Sucrose and Glutamine on Anter Culture ofSolanum khasianum Clarke, Djunaedi Gandawidjaja.Anther ofSolanum khasianum Clarke were cultured on MS medium enriched with sucrose (30, 60, 75, 90 g/l)combined with glutamine (0, 200, 400, 600 mg/l)or with sucrose (60 g/1) combined with glutamine at low concentrations (0, 0.5,2.5, 5.0,10.0,20.0,50.0 mg/l).Callus formation was affected by the interaction of sucrose and glutamine. Callus formation decreased with the increasing concentration of sucrose or glutamine. Combination of sucrose and glutamine was unable to regenerate planletfrom the callus.
DETEKSI LOGAM BERAT PADA PERAIRAN, SEDIMEN DAN SIRIP IKAN BADUKANG {Anus caelatus HAN A. maculatus) DIMUARA SUNGAI KAHAYAN DAN SUNGAI KATINGAN, KALIMANTAN TENGAH Edison Harteman; Dedi Soedharma; Adi Winarto; Harpasis S Sanusi
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.v9i3.783

Abstract

The study sites were located in the river mouths of Kahayan and Katingan Rivers of Central Kalimantan. The purpose of this study was to evaluate concentration of heavy metals on the water, sediment, Arius (catfish) fin through concentration and bioconcentration factor (BCF); data were analysed by regression and correlation analysis. Collected samples were water and fish.Water sample and fish bone were analysed by Atomic Absorption Spectrophotometer (AAS). The results indicated that the concentrations of Pb>Cd>Hg were occurred in the water and hard fins, which the bioconcentrations of Hg>Cd>Pb were in the hard fins, while the bioconcentration factors (BCFs) of Pb>Hg>Cd were in the sediment.Moreover, it seems that heavy metals in the waters absorpted and accumulated by sediment and hard fins increased along with heavy metal concentration in the water, whereas heavy metals in the sediment absorpted and accumulated by hard fins increased along with heavy metal concentration .in the sediment.
THE EFFECT OF CULTURE MEDIA AND ACTIVATED CHARCOAL ON ASYMBIOTIC SEED GERMINATION AND SEEDLING DEVELOPMENT OF A THREATENED ORCHID Dendrobium taurulinum J.J. Smith IN VITRO [Pengaruh Media Kultur dan Arang Aktif pada Perkecambahan Biji dan Perkembangan Seedling Anggrek Langka Dendrobium taurulinum J. J. Smith in vitro] Siti Nurfadilah
BERITA BIOLOGI Vol 15, No 1 (2016)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v15i1.2857

Abstract

Seed germination and seedling development are an initial and crucial stage in the plant growth and development. Many factors influence seed and seedling development. The aim of the present study was to investigate the effects of different culture media (KC, VW, and MS) and the concentration of activated charcoal (0 g/l and 2 g/l) on asymbiotic seed germination and seedling development of a threatened  orchid, Dendrobium taurulinum. Results showed that germination occurred regardless of culture media type, however the percentage of seed germination was higher on media with 2 g/l activated charcoal (> 90 %) than on media without activated charcoal (0 g/l). After 12 weeks asymbiotic seed culture, seeds sown on media with 2 g/l activated charcoal grew and developed more rapidly to leaf-bearing protocorms (seedlings) compared to media without activated charcoal.The highest occurrence of advanced seedlings (stage 4, 89.77%) was  observed on MS medium with 2 g/l activated charcoal.
PENGARUH PESTISIDA SEVIN -85S, DIAZINON -60EC DAN GAMMEXANE -26DP TERHADAP PERKEMBANGAN EMBRIOLOGI, KEMATIAN TELUR, PENETASAN TELUR DAN KEMATIAN BURAYAK IKAN MAS CYPRINUS CARPIO L RISTIYANTI MARSETIYOWATI MARWOTO
BERITA BIOLOGI Vol 2, No 8 (1984)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v2i8.1414

Abstract

Penggunaan pestisida di Indonesia, seperti juga di negara lain yang mengetrapkan teknologi baru, mempunyai peranan yang sangat penting terutaraa untuk menanggulangi hama dan penyakit tanaman.Di Indonesia, pemakaian pestisida yang meningkat telah menimbulkan pengaruh samping terhadap kelangsungan hidup hewan air tawar baik tanaman ataupun binatangnya (Soekaidi 1974). Berbagai penelitian telah merabuktikan bahwa residu pestisida mengakibatkan berjuta-juta ikan mati, bahkan 50 - 100% telur ikan mas mati akibat pestisida Diazinon, Endrin dan DDT dengan kadar 5 ppm(Johnson dalam Edwards 1973). Ikan mas (Cyprinus carpio L) adalah ikan yang paling banyak dipelihara orang terutama di daerah Jawa Barat. Untuk membudidayakan ikan mas ini perlu penyediaan benih yang baik, artinya benih yang sehat, bebas dari hama dan penyakit agai mendapatkan hasil yang memuaskan.
EFEKTIFITAS PEMBERIAN PROPOLIS LEBAH DAN ROYAL JELLY PADA ABSES YANG DISEBABKAN STAPHYLOCOCCUS AUREUS NLP I Dharmayanti; E Sulistyowati; MN Tejolaksono; R Prasetya
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.v5i1.1097

Abstract

A study was done to evaluate the effect of bee propolis and royal jelly on Staphylococcus aureus growth and duration of abscess healing.In vitro and in vivo methods were used on the study. In vitro method conducted by dilution method. In vivo 3 study treatments were divided in four groups.Each group was infected by 1.66.10 cell/ml of S.aureus fo get abscess.The group consists of treatment by abscess surgical and given bee propolis (A),abscess surgical and given royal jelly(B),abscess surgical and not given medication,and group control, no abscess surgical nor given medication.In vitro result showed minimalbactericidal concentration value of bee propolis and royal jelly were the same at concentration 6.25%.In vivo result showed duration of abscess healing were significantly different (p < 0.01).
KARAKTERISASI BIOMETRIK IKAN LELE DUMBO PERBANDINGAN DENGAN IKAN LELE AFRIKA (Clarias gariepinus BURCHELL, 1822) Bambang Iswanto; Imron Imron; Rommy Suprapto; Huria Marnis
BERITA BIOLOGI Vol 18, No 2 (2019)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v18i2.3422

Abstract

Lele Dumbo was used to be a superior clariid catfish ardely cultured in Indonesia. Despite its aquaculture success, there was uncertainty about its taxonomic identity, whether it belongs to an African catfish (Clarias gariepinus Burchell 1822) or a hybrid resulted from a hybridization between African catfish C. gariepinus and an Asian catfish C. fuscus. Though lele Dumbo was no longer popular, the genetic improvement program has successfully developed lele Sangkuriang strain, and that have recently been extensively cultivated in Indonesia. As a lele Dumbo strain, the identity of lele Sangkuriang is also uncertain, thus need to be verified. The present study aimed to investigate the similarity of lele Dumbo through morphometric and meristic characterizations using samples of lele Sangkuriang (collected from BBPBAT Sukabumi, BPBAT Cijengkol and PT STP) compared to those of African catfish C. gariepinus introduced from Thailand and Kenya. The characterizations were carried out through measurement of 20 standard morphometric characters and five meristic characters the data obtained were then analyzed using principal component analysis. The results suggested that the values of morphometric and meristic characters of all three samples of lele Sangkuriang were not different from those of African catfish C. gariepinus. Likewise, the results of principal component analysis performed on morphometric and meristic characters also revealed that morphometric and meristic characteristics of all three samples of lele Sangkuriang were not different from those of African catfish C. gariepinus. Those results revealed that biometric characteristic of both lele Dumbo and African catfish C. gariepinus was not different, thus they seem belong to the same species.     
ANALISIS PERUBAHAN POLA GENETIK EMPAT GENERASI MANGGIS (Garcinia mangostana L.) BERDASARKAN MARKA ISSR Siti Noorrohmah; Sobir Sobir; D. Efendi
BERITA BIOLOGI Vol 11, No 1 (2012)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v11i1.1880

Abstract

Mangosteen reproduces trough apomixes mechanism, from which the seed develops without fertilization. Mangosteen is an obligate apomicts and it is believed that all of its progenies may have the same genotype as their mother plant. However it was found that genetic variations occured among mangosteen accessions. This research is aimed to study of genetic changing among generations mangosteen. The plant materials used were four generations (P1, P2, P3, and P4) of mangosteen taken from Wanayasa, Purwakarta.The samples were selected according to tree height and taken from each sector (north, east, south, and west). Genetic observations were conducted using Inter Simple Sequence Repeat (ISSR) technique. Ten primers were used to amplify the genomic DNA of mangosteen. It was found that the genetics pattern differed among tree of different age. More variation was observed on the older mangosteen tree.This information may be useful to determine the optimum age of mangosteen for becoming mother plant.
PENERAPAN TEKNOLOGI FERMENTASI PADA BIOPROSES FERMENTASI MINYAK KELAPA (FERMIKEL) Joko Sulistyo; Yati Sudaryati Soeka; Evi Triana; Rostiati NR Napitupulu
BERITA BIOLOGI Vol 4, No 5 (1999)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v4i5.1246

Abstract

Methods of extracting oil from coconut endosperm by fermentatbn were studied. The factors which must be controlled to break the emulsion and liberate oil were investigated. It was found that grinding conditions exerted a profound effect upon the stability of the coconut milk emulsion. The optimum condition for rapid fermentathn of coconut milk was related to the condition during incubation period. The fermentation progressed best under mild conditions (28°C-40°Cj. The fermentation was successful in breaking the emulsion at a relatively broad of range and titrable acidity. Coconut cream and small volume of coconut water and "lontar" (palmyra palmj-sap were incubated separately with some strains of Bacillus species, which were preincubated in a coconut tomato-extract sugar (CTSj medium using a shaker, and grown as a starter under conditions that allowed for coconut oil production at pH 4,0-5,0 and 30 C°- 40 "C for 12-24 h. The organism destabilizes the emulsion, apparently by metabolizing sugars, resulting in the production of protein curd and high-quality oil. The palm sap and coconut water to the cream ratio of fermentation medium influenced the performance of oil produced and the bacteria grew well and produced oil in non sterile systems. The oil recovered was about 25 to 20% while average amount of oil in the coconut is approximately 25-35%, which means that only 83,33 to 66,67% oil was recovered. The oil contained little free fatty acid and very low concentration of cholesterol (0,0095 mg/ml), while the traditional coconut oil and commercially palm oil were 0,0111 mg/ml and 0,0132 mg/ml, respectively.

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