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BERITA BIOLOGI
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Articles 24 Documents
Search results for , issue "Vol 15, No 1 (2016)" : 24 Documents clear
KOMUNIKASI PENDEK ETNOBOTANI DAMAR PADA ORANG RIMBA DI TAMAN NASIONAL BUKIT DUABELAS [Ethnobotany of Dammar by Orang Rimba in Bukit Duabelas National Park ] Andhika, Rana Rio; Muhadiono, Muhadiono; Hilwan, Iwan
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.v15i1.2863

Abstract

Orang Rimba have local knowledge about utilization of dammar in Bukit Duabelas National Park .The research was aimed to record the type of dammar and explore local knowledge Orang Rimba utilizing dammar. Data were collected through interviews, participant observation and documentation . Data analysed as qualitative descriptive. There were 15 plant species whose resin were used by Orang Rimba i.e Dipterocarpus baudii, Dipterocarpus hasseltii, Hopea mengarawan, Hopea dryobalanoides, Dacryodes rugosa., Santiria laevigata, Shorea bracteolata, Parashorea aptera, Canarium pilosum, Shorea retinoides, Shorea cf. singkawang, Santiria dacryodifolia, Shorea multiflora dan Sarong (Trigona spp). Dammar were used  as a fuel, medicine, adhesive material and traditional rituals. General use of dammar was for traditional Torch lighting (blebayon).
PENGARUH SALINITAS DAN INOKULAN BAKTERI TERHADAP PERTUMBUHAN TANAMAN TERUNG (Solanum melongena L.) [The Effect of Salinity and Bacteria Inoculant on The Growth of Eggplant (Solanum melongena L.)] Suliasih, Suliasih; Widawati, Sri
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 | Full PDF (3403.499 KB) | DOI: 10.14203/beritabiologi.v15i1.2854

Abstract

Nitrogen fixing dan phosphate solubilizing bacteria are important PGPR bacterial in addition of plant nutrients by increasing N and P, especially in saline soils. Experiments were conducted to observe the effects of  soil salinity and bacterial inoculant on growth eggplant (Solanum melongena) at green house of  Microbiology division, Research Center for Biology, The Indonesian Institute of Sciences,  Cibinong. Experiment laid out as factorial based randomized complete design  with three replications. Five levels of watering consisted of (1). Fresh water, (2). NaCl 0.1%, (3). NaCl 1%, (4). Sea water 75 %+25% fresh water, (5). Sea water 100%  as first factors. Five levels of inoculations/biofertilizers consisted of (1).control without fertilizer (K), (2). NPK (P), (3). Nitrogen Fixing bacteria (BPN1), all treatments was repeated 3 times  BPN2, mixed inoculation (BPN1 +  BPN2 + Phosphate Solubilizing Bacteria/BPF) as second factors.  Results showed that biofertilizer application increased growth and yield of eggplant in various levels of salinity at about 21.56%-53.35%  compared to uninoculated plants
ETNOBOTANI DAMAR PADA ORANG RIMBA DI TAMAN NASIONAL BUKIT DUABELAS Rana Rio Andhika; Muhadiono Muhadiono; Iwan Hilwan
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.v15i1.2863

Abstract

Orang Rimba have local knowledge about utilization of dammar in Bukit Duabelas National Park .The research was aimed to record the type of dammar and explore local knowledge Orang Rimba utilizing dammar. Data were collected through interviews, participant observation and documentation . Data analysed as qualitative descriptive. There were 15 plant species whose resin were used by Orang Rimba i.e Dipterocarpus baudii, Dipterocarpus hasseltii, Hopea mengarawan, Hopea dryobalanoides, Dacryodes rugosa., Santiria laevigata, Shorea bracteolata, Parashorea aptera, Canarium pilosum, Shorea retinoides, Shorea cf. singkawang, Santiria dacryodifolia, Shorea multiflora dan Sarong (Trigona spp). Dammar were used  as a fuel, medicine, adhesive material and traditional rituals. General use of dammar was for traditional Torch lighting (blebayon).
PENGARUH SALINITAS DAN INOKULAN BAKTERI TERHADAP PERTUMBUHAN TANAMAN TERUNG (Solanum melongena L.) Suliasih Suliasih; Sri Widawati
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.v15i1.2854

Abstract

Nitrogen fixing dan phosphate solubilizing bacteria are important PGPR bacterial in addition of plant nutrients by increasing N and P, especially in saline soils. Experiments were conducted to observe the effects of  soil salinity and bacterial inoculant on growth eggplant (Solanum melongena) at green house of  Microbiology division, Research Center for Biology, The Indonesian Institute of Sciences,  Cibinong. Experiment laid out as factorial based randomized complete design  with three replications. Five levels of watering consisted of (1). Fresh water, (2). NaCl 0.1%, (3). NaCl 1%, (4). Sea water 75 %+25% fresh water, (5). Sea water 100%  as first factors. Five levels of inoculations/biofertilizers consisted of (1).control without fertilizer (K), (2). NPK (P), (3). Nitrogen Fixing bacteria (BPN1), all treatments was repeated 3 times  BPN2, mixed inoculation (BPN1 +  BPN2 + Phosphate Solubilizing Bacteria/BPF) as second factors.  Results showed that biofertilizer application increased growth and yield of eggplant in various levels of salinity at about 21.56%-53.35%  compared to uninoculated plants
EKSPLORASI DAN KARAKTERISASI ENTOMOPATOGEN ASAL BERBAGAI INANG DAN LOKASI Tri Puji Priyatno; I Made Samudra; Ifa Manzila; Dwi Ningsih Susilowati; Yadi Suryadi
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.v15i1.2859

Abstract

Microbial groups of entomopathogenic (fungi and bacteria) had been reported causing insect mortality. The aim of the study was to explore and characterized entomopathogenic from various host and locations. Fungal identification at genus and species level was caried out based on conidial morphology, hyphal growth, conidiophore and colony color; whilst for bacterial identification was based on standard Bergey’s manual for determinative bacteria. Sixteen entomopathogenic isolates that consisted of fungal and bacteria have been collected and preserved for further characterization. Of the 16 entomopathogen collected samples, five fungal genera was found i.e. Paecilomyces; Metarhizium, Beauveria, Hirsutella; and Cordyceps. Seven isolates belonging to six fungal isolates, and one bacterial isolate had been identified based upon ITS and 16S rDNA sequences, respectively. We confirmed that 6 fungal isolates belong to species of Paecilomyces reniformis, B. bassiana, M. anisopliae, M. anisopliae var acridum, Hirsutella thomsonii. One isolate of red pigmented bacteria Sm201102 have been identified was belonging to species Seratia marcescence. It was also obtained two fungal isolates from different host (spider and beetle) which confirmed by morphological character belong to Cordyceps sp.
KARAKTER RESPIRASI DAN MINERALISASI KARBON ORGANIK PADA SAMPEL TANAH DIKOLEKSI DARI PULAU BANGKA Maman Rahmansyah; Suliasih Suliasih
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.v15i1.2855

Abstract

The study was designed to explore soil biomass content and soil enzymatic activities that involved in carbon organic soil mineralization. Samples of soil were collected from two locations in Bangka Island. Bulk samples of top soil (TP) and excavated (TG)  were collected from garden soil in Pangkalpinang. Other soils were gathered from forest floor (TU), beneath pelawan (Tristaniopsis merguensis Griff.) trees which is endemic plant to North Bangka forest. Soil biological character was evaluated by measuring soil microbial population, respiration rate, and cellulase and amylase activities. Experiments were carried out in Research Center for Biology, Indonesian Institute of Sciences, on dried soil treatment (Control), soil moistened with 5 mL H2O in 100g soil (Gluc.0), and soil moistened with 5 mL 1% glucose solution (Gluc.1). Bacterial population obtained was higher than fungal population in all soil samples. Soil respiration activity in TU after treatment was 4.51±0.49; 5.26±0,79; and 8.28±1.41 ppm CO2/100g-soil/5-minutes, respectively. Meanwhile , respiration in TP  were 3.65 ± 2.12; 3.57 ± 1.18; and 7.94 ± 1.05 ppm CO2/100g-soil/5-minutes; and in the TG are 2.61 ± 0.70; 3.34 ± 0.94; and 5.46 ± 2.30 ppm CO2/100gsoil/5-minutes. Cellulase activity of all samples were not significantly different. Forest soil cellulase activity was significantly different compared to garden soil. Glucose induction was positively increased amylase activity compared to cellulase. Soil enzyme, soil respiration activities and microbial population of forest soil could be used as a reference to recover degraded land in Bangka Island.
RESPON BEBERAPA KULTIVAR PADI SAWAH PADA PENGAIRAN SISTEM GENANGAN DALAM PARIT Syamsuddin Syamsuddin; D. Indradewa
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.v15i1.2860

Abstract

Efficiency of water use in paddy rice irrigation system is necessary to increase cropping intensity. Development of rice cultivars that are responsive to adequate soil moisture with high yield and efficient use of water is required for tropical paddy fields. The research was conducted in Sleman district of Yogyakarta province, from April to August 2011. The study was conducted on some selected rice cultivars to be cultivated on soil saturated culture (SSC) system to asses the response of cultivars that can produce high grain yield. Experiment was using randomized block design (RBD) and environment factors as replications. Control treatment was rice field. Rice cultivars used are IR.64, Ciherang, Inpari-1, Inpari-2, Inpari-3, Inpari-4, Inpari-10, Inpari-6 Jete, Cigeulis, Ciliwung, Luk Ulo, Way Apo Buru, Widas, Bondoyudo, Silugonggo, Tukad Petanu, Batang Piaman, Cibogo, Dodokan, Sarinah, OM.5637, WS.63-22-1-1-3-3, Inpari-8, Situ, Bagendit, and Cimelati. The results showed that the cultivars Cimelati and Sarinah was a cultivar response to the SSC system compared to other cultivars. The Cimelati cultivar grain yield potential was 25.02 g/hill and Sarinah was 21.45 g/hill. The yield using SSC system was higher compared to rice fields system.
POTENSI Rhodococcus pyridinovorans GLB5 SEBAGAI BIOKATALIS DALAM KONVERSI SENYAWA METHIL SIANIDA DAN PHENIL SIANIDA Nunik Sulistinah; Rini Riffiani; Bambang Sunarko
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.v15i1.2856

Abstract

Nitrile and amide bioconversion have received increasing attention due to their ability to provide a range of commercially important chemicals. The experiment was conducted to investigate the potential of bacterial isolate GLB5 to convert methyl cyanide and phenyl cyanide. The samples were collected from various industrial waste. Selection of isolates to utilize  these substrates as a sole source of energy, carbon and nitrogen was conducted on 96 whell microtitter plates, based on the growth ability using INT (Iodo nitrotetrazolium chloride) reagent. Based on the growth  pattern, it showed that the bacterial isolate GLB5 grew well and it was capable of utilizing  methyl and phenyl cyanide compound as the sole source of carbon and nitrogen.  The isolate GLB5 was isolated from industrial waste of Batik factory in Cirebon, and  identified as Rhodococcus pyridinovorans. Bioconversion of methyl cyanide using whole cells of R. pyridinovorans GLB5 showed that ethanamide (C2H5NO) and ethanoic acid (C2H4O2) were detected. Formation of ethanamide and ethanoic acid as the product of bioconversion, indicated that the nitrile hydratase and amidase enzymes  involved in the bioconversion process. Phenyl carboxamide (C7H7NO) as the product of phenyl cyanide bioconversion was also detected,  although  in  low  concentration. In this study, R. pyridinovorans GLB5 was capable of completely converting 300 mM methyl cyanide to ±  140 mM ethanoic acid in relatively short times (<60 minutes).
LETHAL DISSOLVED OXYGEN AND BLOOD PROPERTIES OF GREY MULLETS Mugil cephalus IN SEAWATER AND FRESHWATER [Oksigen Terlarut Letal dan Gambaran Darah Ikan Belanak Mugil cephalus di Air Laut dan Tawar] Vitas Atmadi Prakoso; Ki Tae Kim; Byung Hwa Min; Rudhy Gustiano; Young Jin Chang
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.v15i1.2861

Abstract

Ikan belanak Mugil cephalus adalah salah satu spesies ikan euryhaline dan merupakan ikan ekonomis penting yang terdistribusi secara luas di dunia. Namun, penelitian tentang pengaruh faktor lingkungan terhadap metabolisme ikan ini masih kurang banyak diteliti meskipun hal tersebut penting untuk mengoptimalkan budidaya. Karena itu, penelitian ini dilakukan untuk mempelajari tingkat oksigen terlarut (DO) letal dan gambaran darah ikan belanak pada kondisi pemeliharaan dengan salinitas berbeda. Dua kelompok penelitian dilakukan untuk mengukur kadar DO letal dan gambaran darah ikan belanak pada kondisi pemeliharaan di air laut (LOS) dan air tawar (LOF). Pengamatan dilakukan menggunakan closed rectangular chamber dan sampel darah. Hasil penelitian menunjukkan bahwa kondisi ikan belanak menjadi tidak stabil pada kondisi oksigen terlarut di bawah 2 mg/L (1.3 mg/L pada LOS, 1.6 mg/L pada LOF). Dalam kondisi oksigen terlarut menjadi 1 mg/L, aktivitas ikan menurun dan mengalami kematian pada konsentrasi 0.3 mg/L. Kedua kelompok penelitian yang diamati tidak berbeda nyata (P>0.05). Parameter darah seperti Ht, Hb, osmolalitas, kortisol, dan glukosa dalam percobaan LOS memiliki nilai yang lebih tinggi dibandingkan dengan LOF. Percobaan menunjukkan bahwa indikator respon stress pada ikan belanak semakin meningkat dengan menurunnya kandungan oksigen dalam air. Kadar kortisol berada pada nilai 90.7 ng/ml di LOS dan 56.4 ng/ml di LOF, sedangkan kadar glukosa berada pada nilai 169.0 ng/ml di LOS dan 71.5 ng/ml di LOF. Dari penelitian ini dapat disimpulkan bahwa kadar oksigen terlarut bagi ikan belanak dianjurkan tidak berada di bawah 2 mg/L pada kondisi pemeliharaan di air laut maupun air tawar untuk menghindari kematian pada ikan.
TEKNOLOGI PENURUNAN KADAR Fe AIR SAWAH PASANG SURUT MELALUI PENGGUNAAN BIOFILTER PURUN TIKUS (Eleocharis dulcis) Ani Susilawati; Linda Indrayati
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.v15i1.2852

Abstract

Water management in acid sulfate soil can increase the productivity of land and crops, but the element of poison leaching into drainage channels gives negative impact on the environment. One approach to improve water quality is to filter or absorb the poison element. Purun tikus (Eleocharis dulcis) can act as a biofilter to improve water quality. The purpose of this study is to get biofilter technology (purun tikus) to reduce the levels of Fe, SO4 and increase the pH of the water. The experiment was conducted in greenhouse of Indonesian Swampland Agriculture Research Institute, Banjarbaru, South Kalimantan. Treatment was arranged in a factorial randomized block design with three replications.The first factor was the density of the biofilter ,consisted of: 1) 25%, 2) 50%, and 3) 100%, The second factor was the length of contact of water with biofilter that consisted of: 1). 12 hours, 2) 24 hours, and 3) 36 hours. The results showed that the density of purun tikus 50% in greenhouse experiments can decreased the concentration of Fe at 76.5%.

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