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BUANA SAINS

buanasains
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Published by Universitas Tribhuwana Tunggadewi

ISSN : 14121638 EISSN : 25275720 DOI : -

Core Subject : Science, Education,

Biochemistry, Genetics & Molecular Biology Chemistry Mathematics Physics

BUANA SAINS p-ISSN : 1412-1638 | e-ISSN: 2527-5720 is a double-blind peer-reviewed, open-access journal, published by UNITRI PRESS. It publishes original and applied research in all areas of natural science. The Editorial goal is to provide a forum exchange and an interface between researchers and practitioners in any natural science related field.

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Articles 13 Documents

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Search results for , issue "Vol 11, No 1 (2011)" : 13 Documents clear

PENGARUH VOLUME PEMBERIAN AIR DAN KONSENTRASI PUPUK DAUN TERHADAP PERTUMBUHAN VEGETATIF TANAMAN ANGGREK Dendrobium undulatum Eka Riana Sari; Cicik Udayana; Tatik Wardiyati
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Orchid are one kinds of highest estetic flower in the international orchid market. The aim of the research is evaluate application of fertilizer and watering Dendrobium undulatum at vegetative phase. This research was conducted at Venus Orchids during April – July 2010 location in Tegalweru village, Dau, Malang. Factorial Randomized Completed Design with three replication. The treatment are: Factor I: Concentration of fertilizer, P1: 1,0 g/l, P2: 1,5 g/l, P3: 2,0 g/l, P4: 2,5 g/l, P5: 3,0 g/l. Factor II: Watering volume, V1: 10 cc/pot, V2: 15 cc/pot, V3: 20 cc/pot. The result showed there is interaction between the usage of leaf fertilizer concentration and water volume on vegetative growth Dendrobium undulatum. There is no significant difference on parameters number of leaf, height of plant, number of root and fresh weight of plant with leaf fertilizer concentration on Dendrobium undulatum at vegetative phase. There significant difference on parameters leaf area, height of plant, and fresh weight of plant with usage water volume on Dendrobium undulatum, on water volume 10 cc/pot showed result better than usage water volume 15 cc/pot, or 20 cc/pot

PENGARUH Benzyl Adenin DAN MEDIA DASAR PADA PERBANYAKAN EMBRIO ANGGREK SECARA In Vitro Caecilia Puspita C.P.A; Sudiarso Sudiarso; Tatik Wardiyati
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

In Indonesia, orchid is one of advanted crop. Crop multiplication of orchids usually produce with seed culture. Each embryo from seed culture can be multiplied by mericlone. The objective of this research is determine the type of media benzyl adenine concentration for growing and embryo’s proliferation of Phaleaenopsis amabilis. The research used complete randomized design factorial consist of 2 factors with 3 replications. First factor is type of media consist of 3 levels which are ½ Murashige and Skoog (½ MS), Vacin and Went (VW), New Phalaenopsis (NP). Second factor is Benzyl adenine concentration consist of 4 levels which are 0 ppm, 0.5 ppm, 1 ppm and 1.5 ppm. Each bottle are inoculated by 5 embryos/PLB of white Phalaenopsis amabilis. Data had been analyzed with F test in 5% level. The highest number of embryos per explants are shown from combination between ½ MS media with 0.5ppm BA. The results showed that highest number of leaves and roots per explants are from NP media. Media without benzyl adenine produced the highest number of leaves and roots. The highest number of diameter is produced by VW media which combine with 1.5 ppm benzyl adenine

PROSPEK INDUSTRI MARGARIN ALPOKAT SKALA INDUSTRI RUMAH TANGGA Wahyu Mushollaeni
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Avocados had a fairly complete nutrient content and the price was quite affordable, so that the processing of avocados worth to be developed. Fruit not only on consumption in fresh condition, but with additional processing in order to get a new flavor or to get varied diet and to get the benefits of the avocado fruit. To cope with the abundance of the product during the main harvest, it would require further processing, so that the economic value of the avocado fruit does not fall. Both of the processing to extend the shelf life and processing for product diversification. Avocado in an optimal utilization has not been done, then to overcome, given an alternative form of avocado fruit processing, thereby increasing the range of dishes, namely margarine avocado. Hopefully with a new product in the form of margarine avocado, can increase the economic value of the avocado. In addition, more durable and can be used repeatedly without reducing flavor. This study aims to determine the feasibility of the process and financially household scale industries that produce margarine from avocado fruit. The results showed that at the household scale industries, the use of glycerin in margarine, avocados, can increase the value of consumer preferences, so that the margarine produced can be marketed properly. The use of glycerin was limited at concentrations of 10% for margarine and avocado consumers preferred feasible physically and chemically. Financially, the effort is worth the effort or established with a value of 16.37% IRR and NPV Rp. 4,435,371

MASALAH DAN PERANAN CO2 PADA PRODUKSI TANAMAN Sutoyo Sutoyo
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Carbon dioxide is a gas that can be as the greenhouse effect. The greenhouse effect can occur naturally, and can occur due to human activities. The process of the greenhouse effect associated with the recycling flow of solar energy. Increased levels of CO2 in the atmosphere due to human activity, especially transportation and industrial activities so that increasing consumption of fossil fuels, and changes in land use. These activities are difficult to control because of the demands for the fulfillment of a better life. On the other hand mitigation and adaptation efforts to reduce the CO2 impact has not been completely worked well. On evaporation and temperature changes due to the greenhouse effect of CO2 and global warming impacts of drought, rising sea water, and other sector losses, but profitable irrigated agricultural land, such as plant seeds and nuts. The direct effect of increased CO2, positive impact on crop production through increased leaf and canopy photosynthesis, its effect on C4 plants also increase water use efficiency because it reduces the opening of stomata

STRATEGI SUPLEMENTASI LEGUMINOSA UNTUK MENINGKATKAN PENAMPILAN DOMBA Eko Marhaeniyanto; Sri Susanti
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Research using potential local leguminosa to used supplementation with basal diet rice straw to effort effects on intake, nutrient digestibility and daily gain sheep. Research materials consisted of 16 rams, average body weight 13,10 ± 0,4 kg, placed in 16 individual cages. Treatment of feed used are rice straw, Gliricidia maculata and Leucaena leucocephala. Research methods in vivo experiments with randomized block design (RBD), which consists of 4 treatments and 4 replications. The treatment consisted of level legume supplementation on R0 (0%), R1 (0.25%), R2 (0.5%), and R3 (1.0%). The results legume supplementation on basal diet of rice straw showed very significant on feed intake, digestibility and intake digested of feed (P0.05). Conclution in this research: supplemented legume Gliricidia maculata and Leucaena leucocephala 1.0% BW on basal diet rice straw shows feed intake, digestibility and daily gain tend to give better performance

REVITALISASI KEMITRAAN TEMBAKAU VIRGINIA DI JAWA TIMUR Samsuri Tirtosastro; Taufik Iskandar
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Cigarette industries in Indonesia especially nowadays still need to import some raw ingredients. The highest import for 10 years (2001-2010) is from China i.e. for about 28,288,197 ton/year or 53.38% from import total of the total import of 52,999,855 kg/year with a value of USD 127.149.050/year. The price of dried tobacco leaves from China is only USD 1,996/kg or 83.84% from the average price of import dried tobacco leaves. Base on these data, it is showed that most local cigarette industries need to have dried tobacco leaves with medium quality and low price. Opportunity for East Java to develop virginia tobacco is high enough. East Java not only has quite potential area, but also has technology packages which are sufficient enough to increase productivity up to 2,000kg/ha or more. The weakness is the system for guiding farmers. There is no link in the technology partnership, production tools, furthermore marketing resulted in low productivity and quality. As a fancy product there should be a link between farmers as producers and tobacco industries as consumers for all sub-systems of virginia tobacco farming business. Cooperation of producers, consumers, and local governments is the basic framework of the system for guiding. Producers and consumers had more cooperation in the aspects of production and quality improvement. Local government regulations governed on all parties working together based on justice. Farmers as producers are obliged to apply the technology built and sell dried tobacco leaves according to the company's pricing agreement builder

PENGGUNAAN ONGGOK SEBAGAI ADITIF TERHADAP KANDUNGAN NUTRIEN SILASE CAMPURAN DAUN UBIKAYU DAN GAMAL Nonok Supartini
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

The experimental methods and design was carried out by Completely Randomized Design (CRD) with four treatments, replicated five times and 21 day long fermentation process. Based on analysis of variance showed that average DM (Dry Matter) content in each treatment amounted were: P0 = 22,83%; P1 = 23,58%; P2 = 25,12% and P3 = 26,95%. Average OM (Organic Matter) content were: P0 = 91,05%; P1 = 91,01%; P2 = 90,59% and P3 = 91,74%. Average CP (Crude Protein) content were: P0 = 20,91%; P1 = 21,08%; P2 = 22,33% and P3 = 22,81%. Based on analysis of variance showed that different level of onggok gave significant difference (P

KAJIAN DAMPAK PENERAPAN VARIETAS KACANG HIJAU VIMA I DAN KOMPONEN TEKNOLOGI PENDUKUNGNYA DI LAHAN SAWAH Nila Prasetiaswati; Budhi Santosa Radjit
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Research was conducted in Megonten village, subdistrict Kebonagung, Demak district in 2011 which is the central area of mungbean production. The research objective was to evaluate the impact of using mungbean variety Vima I and supporting technology. Data were collected by surveys, to 20 respondents are farmers cooperator farmers who have adopted the technology research conducted in 2009. The respondent was selected by purposive sampling. The data collected was assessed by using analysis of "before and after" method.. The results showed that the use of Vima I mungben variety followed by improved technology have a positive impact on increasing seed yield revenue. By 167% compared to the local variety, while costs of input was 20% higher than the traditional technology. Determinate planting through tractor (ceblok tractor) and processing of seeds with thresere can save labour costs up to 4,7%. The revenue was increase 213% and B/C ratio 3,22. The impact area of mungbean using Vima I variety increased from 12 in 2008 up to 505 ha in 2011

PENGURANGAN KECEPATAN PENGENDAPAN LUMPUR LAPINDO UNTUK MENINGKATKAN KAPASITAS SUNGAI PORONG Suhudi Suhudi
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Lapindo mud is a type mud classified as extremely unique because it is so quick to settle. The aims of this research was to determine the level of mud viscosity and flow rate in order to increase the disposal capacity in Porong River. The research was conducted in a laboratory soil mechanics and hydraulics ITN of Malang. The type mud is a type of sandy loam with specific gravity of 2.68 gr/cm3; average grain diameter of 0.0153 mm; 139.07 m wide river bed, 4.31 m/s maximum flow rate and 6.94 m/s minimum in which were difficult to move sediment so an effort was required for flushing, so that the tractive force that occurred (τ0) was 0.0183 kg/m2 < allowed from the allowable tension = 0.46 pon/feet2 or = 0.057 kg/m2. The result of this research was the addition of 2% chemicals (HCl) could help to reagent so as to break the clumping (flock) to the sedimentation process could be slowed down and distance of precipitation could be lengthened. Lapindo mud has quickly settled nature, due to molecular cohesion having dilatants nature meaning that it required high enough power to do the movements stirring the mud. Mud would have high viscosity (up) when performed with a large shearing force tension that causes turbulent mud moving. Nevertheless, there was no fast precipitation happen or deposition time was extended to Lapindo mud

ANALISIS DAYA SAING KEDELAI TERHADAP TANAMAN PADI DAN JAGUNG Rininta Saraswati; Salyo Sutrisno; T. Adisarwanto
BUANA SAINS Vol 11, No 1 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

In general soybean area is the same area of rice or maize, and in fact there were competitive between each crop. The aims of the study is to evaluate competitiveness of soybean with rice and maize. Survey methodology was applied with farmer respondent of soybean from two village namely Karanghardjo and Panunggalan , Sub District Pulokulon, Grobongan District during October 2008 to Februari 2009. Farm analysis, Equalibrium analysisi and Competitiveness was used in this study. The result showed that soybean still competitive if minimal productivity of soybean reach minimum > 1.90 t/ha and > 1.80 t/ha respectively to rice and maize with the minimum price of soybean Rp. 4.500/kg

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