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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 20 Documents

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Search results for , issue "Vol 14, No 3 (2015)" : 20 Documents clear

PEMANFAATAN LIMBAH BUDIDAYA IKAN LELE (Clarias batrachus) UNTUK IKAN NILA (Oreochromis niloticus) DENGAN SISTEM RESIRKULASI [Utilization of Catfish (Clarias batrachus) Waste By Tilapia (Oreochromis niloticus) in Recirculation System] Setijaningsih, Lies; Suryaningrum, L.H.
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Â The effluent generated from aquaculture can be exploited through the application of aquaponics technology. The aim of this research was to evaluate the utilization of catfish culture waste by tilapia based on closed recirculation. Catfish and tilapia were used as fish test while water spinach was used as a biofiltration. Dissolved of nitrogen and phosphorus that obtained from catfish culture would be utilized by water spinach. Completedly Randomize Design with consisted of three treatments and three replicates were performed. The different stocked density on catfish culture were used as a treatment i.e. 500 individuals per pond (P1); 1000 individuals per pond (P2); and 1500 individuals per pond (P3). Different stocking density was also applied to tilapia culture as a treatment namely 50 individuals per m2 (Q1); 100 individuals per m2 (Q2); and 150 individuals per m2 (Q3). Result showed that catfish culture with stocking density of 1500 individuals per pond (P3) was better than (P1) and (P2) in terms of absolute weight growth, specific growth rate, and survival (P<0.05). Absolute weight growth, specific growth rate, and survival of tilapia cultured at Q2 (stocking density of 100 individuals per m2) and Q3 (stocking density of 150 per m2) were better than Q1 (stocking density of 50 individuals per m2) (P<0.05).

PENGARUH LAMA RETENSI AIR TERHADAP PERTUMBUHAN IKAN NILA (Oreochromis Niloticus) PADA BUDIDAYA SISTEM AKUAPONIK DENGAN TANAMAN KANGKUNG [Effect of Water Retention On The Growth Rate of Nile Tilapia (Oreochromis niloticus) In The Aquaponic System Planted Water Spinach (Ipomoea reptans)] Setijaningsih, Lies; Umar, Chairulwan
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Â In principle, fish culture with aquaponics system save land utilization and can improve the efficiency of nutrient utilization of unconsumed feed and fish metabolism waste. Therefore, this system is recognized as environmentally friendly fish farming. The research aimed to find the optimum water retention for the maximum growth of tilapia raised in the aquaponics system. This experiment consisted of three treatments of different water retention, i.e. 30, 60, and 120 minutes and one flow- through recirculation system. Results showed that the highest individual weight gain of 39.92 g and individual daily growth rate of 0.54 g /day were reached in the treatment of 120 minutes water retention for 40 days growing period. Meanwhile, the lowest individual weight were observed in the treatment of 30 minutes water retention and control treatment, i.e. 25.25 Â± 1.22 g and 18.52 Â± 1.07 g, respectively. Aquaponic fish farming system with water retention of 120 minutes could reduced 10.69% of N- Total and 38.10% of P- Total, while survival rate was not influenced by water retention treatment

AUTEKOLOGI PERTUMBUHAN PINUS (Pinus merkusii Junghuhn et de Vriese) PASKA ERUPSI DI GUNUNG GALUNGGUNG, KABUPATEN TASIKMALAYA JAWA BARAT [The Autecological Growth of Pine (Pinus merkusii Junghuhn etdeVriese) Post-Eruption at Galunggung Mountain, Tasikmalaya-West Java] Sadili, Asep
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1827

Galunggung Mountain forest area in West Java of post eruption 1982 may served as a natural laboratory for studying plant development and plant growth, including pine trees. Pine trees that were planted by Perhutani at Galunggung had high prospect although they were planted at degraded areas and poor nutrient. Experimental plots were set up in two different locations at Mount Galunggung. Trunk diameter, tree height, total height, soil humidity and soil pH was measured for all pine trees inside the plot at each subplot. All measured parameters resulted in varied values with varied deviation standard. Measurement of trunk diameter, branches height and total height of pine trees in Mount Galunggung suggested that their growth rate was slow and no significant correlation among them.

KARAKTERISTIK MORFOLOGI DAN PERKEMBANGAN BUNGA Aeschynanthus tricolor Hook. (GESNERIACEAE) [Morphological Characteristic and Flower Development of Aeschynanthus tricolor Hook. (GESNERIACEAE)] Rahayu, Sri; Wawangningrum, Hary; Garvita, R. Vitri
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Aeschynanthus tricolor Hook. (Gesneriaceae) is one of the Aeschynanthus, a special lipstick flower characterized by its campanulate red calyx which more showy than its short stripped corolla. This specific character is beneficially potential for cross pollination to make a new variety. To develop a new variety, it is important to have information about the biology of flowers.However, such information is still lacking. This research was therefore aimed to obtain information on flower characteristics and development in order to understand the pollination systems of this species. Observations was made on A. tricolor from Central Kalimantan collected in 2000 that was planted in Bogor Botanic Gardens green house. Results indicated that this species was categorized as protandrous, which mean the flower cannot pollinate by itself without pollination agent. The pollinators of this species were bird and/or bumble bee. The flower developments took 32 days from the beginning of a flower bud to anthesis. It was suggested that cross pollination for interspecific hybridization was between the species within the same clade (Section Aescynanthus).

PERTUMBUHAN DAN PRODUKSI JARAK PAGAR (Jatropha curcas L.; Euphorbiaceae) PADA TIGA TINGKAT POPULASI TANAMAN DI LAHAN KERING BERPASIR [Growth and production of physic nut (Jatropa curcas L.; Euphorbiaceae) on three population levels in the sandy upland areas] Mulyaningsih, Sri; Djumali, Djumali
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1830

Seed production of Jatropha grown on dry land is very low. Productivity could be increased by increasing plant population size. This study aimed to obtain a plant population that was capable of supporting optimum growth and seed production on sandy upland. This research was conducted at the Asembagus Experimental Station, Situbondo, East Java from January to December 2012. The planting material used were seeds and cuttings. Three populations levels: (1) 2,500 plants ha-1 (2 m x 2 m), (2) 5,000 plants ha-1 (2 m x 1 m), and (3) 10,000 plants ha-1 (1 m x 1 m ) were arranged in a randomized block design with 5 replications. Destructive observations were made in each month to measure the dry weight of plants, shoot, root, leaf, and leaf area index.The production component were observed at harvesting time by measuring dry weight of fruit, fruit skin, seeds, 1000 fruits, and 1000 seeds. Data were analyzed by analysis of variance and LSD test of 5%. Results showed that the use of 10,000 plants ha-1 could increased dry weight of plants, shoots and roots by134.0-544.6%,125.9-549.4% and 167.8-693.3% respectively. They could also increased seed production by 77.5-178.2%.

PERBANYAKAN Heritiera javanica (Blume) Koesterm. SEBAGAI JENIS PENGHASIL KAYU PADA BERBAGAI INTENSITAS NAUNGAN DAN MEDIA PERTUMBUHAN [Propagation of Heritiera javanica (Blume) Koesterm. as Timber Tree Species Under Several Shade Intensities and Growth Media] Sahromi, Sahromi; Purwantoro, R. Subekti; Siregar, Hartutiningsih M.
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v14i3.1823

Heritiera javanica is a timber tree species and their natural regeneration is scanty, thus propagation of this species is urgently required. This research was aimed to identify the effect of shade intensity and growth media on the survival rate and growth of seedlings. Experi- mental design used was completely randomized with two factors, namely the shade intensity and the media that consisted of several cate- gories. Parameters measured were survival rate and seedlings growth; height, number of leaves, and number of roots. Survival rate was analyzed using descriptive statistics. Seedlings growth (height, number of leaves, and number of roots) were estimated by using analysis of variance. Results showed that treatments using categories of several media categories that were placed in the shade of 25%, 50%, and 85% had a high survival rate. In addition, seedlings that were placed in 50% shade grew better and optimally. Media of TK (soil + compost), TS (soil + chaff), and TSPk (soil + manure + chaff) that were placed on the 50% shade showed the best result to height of seedlings growth. Reintroduction needs to be done for the enrichment of H. javanica populations in nature.

POTENSI EKSTRAK PEGAGAN (Centella Asiatica) DAN KUNYIT (Curcuma longa) UNTUK MENINGKATKAN AKTIVITAS ENZIM GLUTATION PEROKSIDASE (GSH Px) PADA JARINGAN HATI TIKUS [Potency of Centella asiatica and Curcuma longa Extracts in Increasing Glutathione Peroxidase (GSH-Px) Enzyme Activities in The Liver Tissue of Rats] Aswani, Tuti; Manalu, Wasmen; Suprayogi, Agik; Rahminiwati, Min
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Â This experiment was designed to study the effect of pegagan (Centella asiatica) and turmeric (Curcuma longa) extracts on the activities of glutathione peroxidase (GSH- Px) in liver of white Spraque Dawley rat aged 2 months old with average weight of 200 grams. Pegagan was extracted using infuse method, and turmeric was extracted using dekokta method. The activity of GSH-Px was measured using Flohe and Gunzlerâs methods. Extract pegagan and turmeric were assumed to have both preventive and curative treatments. For the preventive treat- ment, extract pegagan and turmeric at concentrations of 22.05 mg/ml : 184.1 mg/ml could increased the activity of GSH-PX enzyme, i.e. 232.60 Â± 21.40 mU / mgprotein. This was approximately 79% than the levels of GSH- Px enzyme in normal liver without paracetamol which was 190.78 Â± 9.28 mU/mgprotein. For the curative treatment, extract pegagan and tumeric at concentration of 22.05 mg/ml : 184.1 mg/ml could improved GSH- Px enzyme activity (i.e. 239.01 Â± 47.40 mU/ mgprotein). This figure was about 92% higher than the levels of GSH-Px enzyme in the liver normal without paracetamol which was 190.78 Â± 9.28 mU/mg protein. Pegagan and turmeric extracts with a high concentration could increased the activity of GSH-Px enzyme, thus potential as curative treatment.

PEMANFAATAN INOKULAN MIKROBA SEBAGAI PENGKAYA KOMPOS PADA BUDIDAYA SAYURAN [Microbial inoculants for compost enrichment on vegetables cultivation] Antonius, Sarjiya; Rahmansyah, Maman; Muslichah, Dwi Agustiyani
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Â Microbial existence is due to mineralize organic compound in soil and caused nutrients availability to the plants. In this study, some of microbial inoculants consist of a). Phosphate soluble bacteria (Pseudomonas sp.) collected from soils that intensively utilized agrochemical in its agriculture activities; b). Nitrogen - fixing bacteria Rhizobium leguminosarum; and c) Trichoderma sp. and Aspergillus sp.as organic degradation fungi were used for compost enrichment.These inoculants formulation were utilized to carrots (Daucus carota L.), broccoli (Brassica oleracea L.) and maize (Zea mays L.) cultivation in upland area, Cisarua, Bogor, West Java. This study was aimed to assess inoculants response to enrich fully mature and half ripe compost. Crops response to the inoculation treatment was varied among these commodities. In general, the response of plants with the use of compost enriched biofertilizer was positive, with an increase in yield of about 15- 30% for carrots, broccoli around 65- 90% and about 10% of corn crops. The significant increase in crops production as impact of organic fertilizier application indicated that C organic content of the organic farm of Cimelati and Agato were defisit.

ANALISIS FENETIK JAGUNG RAS LOKAL NUSA TENGGARA TIMUR UMUR GENJAH BERDASARKAN KARAKTER AGRONOMI DAN INTER SHORT SEQUENCE REPEATS [Phenetic analysis of Local Landraces of Early Maturity Maize from East Nusa Tenggara based on Agronomic Traits and Inter Short Sequence Repeats] Yulita, Kusumadewi Sri; Bora, Charles Y.; Arsa, IGB Adwita; Murniningsih, Tri
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Maize having maturity age less than 80 HST (days after planting) has played an important roles as part of food security system for the people of NTT since they can be harvested earlier than common maize and usually consumed by children. Local landraces of maize are usually heterogenous homozygote due to traditional farming system where the farmers used their own harvested maize for generations resulted in low level of heterogeinity. This study was aimed to assess phenotypic and genetic variability among 12 accessions of local maize on the basis of their agronomic perfomance and Inter Short Sequence Repeats profiles. Two accessions of non- early maturity maize were included as control. Ten agronomic traits and eight ISSRs âs primers were used to perform a phenetic analysis using unweighted pair group method with aritmethical average(UPGMA).Clustering dendrogram based on agronomic characters suggested that all accessions were forming three groups on the basis of their maturity (very early mature, early mature, and intermediate mature).On the other hand, analysis using ISSR profiles resulted on random grouping across the accesions.All accessions of early mature age having taxonomic distance of 0.83 and genetic similarity of 57%. This indicated that even though the landraces were open pollinated which allowed cross pollinations during the flowering time, phenotipic and genotipic variations observed to be considerably low.

PENGGUNAAN Chaetoceros calcitrans, Thalassiosira weissflogii DAN KOMBINASINYA PADA PEMELIHARAAN LARVA UDANG VANAME (Litopenaeus vannamei, Boone 1931) [The Use of Chaetoceros calcitrans, Thalassiosira weissflogii and Its Combination to The Larval Rearing of Vaname (Litopenaeus vannamei, Boone 1931)] Panjaitan, Amyda Suryati; Hadie, Wartono; Harijati, Sri
BERITA BIOLOGI Vol 14, No 3 (2015)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

The use of one type live food in the larval rearing of vannamei shrimp is insufficient for maximum larval development. This research was aimed to evaluate the use of phytoplankton Chaetoceros calcitrans and Thalassiosira weissflogii and its combination as food to the growth and survivorship of white pacific shrimp Litopenaeus vannamei. The research used prawn larvae at stadia Nauplius4-5 with 150/ litre larval density. The larvae were fed and their effects with 3 kinds of live food, C. calcitrans (A), T. weissflogii (B), and combination of both types (C) for each treatment with five replications.The data was analysed using SPSSV.16. Result showed that the survival rate for treatment A was of 55.04+11.81%, treatment B was of 68.22+6.80%, and treatment C was of 77.04+4.63%. This indicated that treatment A gave significantly different on survival rate (P<0.01) than treatment B and C. Treatment B and C were not significantly different (P>0.05). We recomended the use of combination both of C. calcitrans and T. weisflogii to provide maximum survival rate for vannamei shrimp postlarvae.

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