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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 510 Documents

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PENGARUH PENGGUNAAN PUPUK KANDANG DAN NPK TERHADAP PERTUMBUHAN DAN HASIL TANAMAN KACANG TANAH Fauzia Hulopi
BUANA SAINS Vol 6, No 2 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

A field experiment that was conducted at Ketanggi Village, Karangploso District of Malang Regency in May-September 2007, was aimed to study the effects of farmyard manure and NPK fertilizers on growth and yield of groundnut. Data were collected through measurements of plant height, number of branch, number of leaves, plant biomass weight, wet and dry weight of ‘polong’ number of ‘polong’, and weight of 100 dry seeds. Results of the study showed that there was no significant interaction between farmyard manure and NPK fertilizer treatments at all measured variables. Results of separate statistical analyses, however, showed that application of farmyard manure and NPK fertilizer with a rate of 20g/plot could improve growth ands yield of groundnut

KELAYAKAN EKONOMI USAHATANI ROTAN DI DESA TERANTANG HILIR KECAMATAN BAAMANG KABUPATEN KOTAWARINGIN TIMUR Marhat Marhat; Mohammad Fadil
BUANA SAINS Vol 9, No 2 (2009)
Publisher : Universitas Tribhuwana Tunggadewi

East Kotawaringin region is one of the areas, which has been supported natural condition for the growth, and developing of rattan. Habitat of rattan in this area consists of riverside, ex farm, forest, swamp, and underbrush. This research aims to learn the cost, revenue, profit, and economy feasibility of rattan farming. Location of research of purposifely determined in Terantang Hilir Village as one of the villages of rattan developing. The samples are 60 participants. Data is gained from primary and secondary data, by using farming analysis method. Result of research shows, rattan farming cost in Terantang Hilir Village is Rp 11.185.558,47/hectare in average, with in revenue in average of Rp 14.845.358,33/hectare. Revenue cost ration value is 1,32 gives meaning that rattan farming in Terantang Hilir Village, Baamang Area, East Kotawaringin Region, is economically feasible to be developed

PROFIL METOBOLIT RHIZOBAKTERI TOLERAN CEKAMAN OSMOTIK DAN KEASAMAN YANG BERPOTENSI SEBAGAI PUPUK HAYATI LAHAN KERING ASAM Ali Ikhwan; Dyah Titi Muhardini
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Pada saat menghadapi cekaman, mikrobia akan merespon secara fisiologi dengan mengubah sistem metaboilisme sel dan mensintesis metabolit spesifik. Hasil penelitian menujukkan ada perbedaan pola pertumbuhan rhizobakteri dan sintesis metabolit antar perlakuan cekaman osmotic dan keasaman-Al. Pada perlakuan cekaman osmotik terdapat 6 metabolit polar spesifik dan 6 metabolit non-polar spesifik. Pada cekaman keasaman-Al terdapat 6 metabolit polar spesifik dan 10 metabolit non-polar spesifik, sedangkan pada cekaman ganda osmotik dan keasaman-Al terdapat 2 metabolit polar spesifik dan 8 metabolit non-polar spesifik. Sebagian besar metabolit tersebut adalah kelompok asam lemak yang berperan sebagai penyusun utama (backbone) membran dan dinding sel sehingga toleran terhadap cekaman osmotik dan keasaman, sehingga toleran terhadap cekaman osmotik dan keasaman dan berpotensi sebagai pupuk hayati lahan kering asam

OPTIMASI LAMA BLANCHING PENGOLAHAN SELAI KACANG TANAH METODE REGRESI KUADRATIK Wirawan Wirawan; Wahyu Mushollaeni
BUANA SAINS Vol 8, No 1 (2008)
Publisher : Universitas Tribhuwana Tunggadewi

The aims of this study were to elucidate the best time for blanching of peanut jams using quadratic regression, and the financial aspects. Six treatments of blanching time, i.e. 5, 10, 15, 20, 25 and 30 minutes were applied. Analytical factors were water content, texture, capability of performance, total of microbial and also hedonics i.e. texture, colors and flavors. Results of this study showed that the best time for blanching was 30 minute and this produced best quality of peanut jams

SUPLEMENTASI SERBUK GERGAJI DENGAN PROBIOTIK UNTUK PAKAN KELINCI Nonok Supartini; Harimurti Februari Trisiwi
BUANA SAINS Vol 16, No 2 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

This study has aims for : (1) knowing the superiority usage of sawdust as the supplementation of rabbit feed. (2). Knowing the factors effected to the degree of the usage sawdust efficiency as rabbit feed supplementation. (3) knowing the degree of feed convertion and feed cost per gain of sawdust fermentation usage as rabbit feed suplementation. By this study, it expected can be : (1) information for rabbit breeder as an alternative feed as sawdust concentrate which can improve the carcass production and anality. (2) the cheap alternative feed for substituting the expensive one.This study has done at husbandry laboratory of Universitas Tribhuwana Tunggadewi Malang. It used 20 local rabbits at the age of 6 months with the weight average 1,2 to 1,5 kg. This study used experiment methods which designed by Complete Random Design (RAL) consists of 4 treatments repeated for 5 times, and there is 4 rabbitd each experiment.The treatments have given are: P0. Fresh vegetable feed + conevntional concentrate; P1: fresh vegetable feed + 2% fermentation sawdust (from fresh vegetable feed); P2: fresh vegetable feed + 4% fermentation sawdust added (from fresh vegetable feed); P3: fresh vegetable feed + 6% fermentation sawdust (from fresh vegetable feed). The variables have been observed are feed consumption, feedd convertion dail weight addition and FCG (Feed Cost per Gain) and IOFC (Income Over Feed Cost).According to this study, it can be concluded that the usage of sawdust increases weight, dry matter consumption, feed costs, and decrease feed cost pr gain and FCR. The usage of 2% fermentation sawddust supplementation gave best results for all variables.It is suggested to use 2% fermentation sawdust supplementation from forage rabbit in order to increase the feed and decrease feed cost per gain.

APLIKASI ZAT PENGATUR TUMBUH DALAM INDUKSI PEMBUNGAAN ANGGREK BULAN (Phalaenopsis sp.) Hayuning Martha L.A; Euis Elih Nurlaelih; Tatik Wardiyati
BUANA SAINS Vol 11, No 2 (2011)
Publisher : Universitas Tribhuwana Tunggadewi

Phalaenopsis amabilis is one orchid flower have a higher economic value commercial flowers.The aims of this study was to determine Plant Growth Regulators (PGR) in inducing flowering Phalaenopsis sp. Randomized Complete Block Design was used with three replications. Non destructive observations were made such as number of leaves and leaf area, initiation of flower spike, length of flower stalk, flower initiation, length of panicle, number of flowers bud, Number of flowers bloom, flower diameter, and percentage of flowering plants. The results showed that there is interaction between kinds of PGR and types of flowers on vegetative growth. The best applications PGR is BA 200 ppm inducing flowering 100% and accelerate the time of flower initiation 23 days after treatment. Aplication 100 ppm Paclobutrazol promote 50% in the percentage of flowering and 100 ppm GA3 promote 33.3% in the percentage . Effect of Paclobutrazol on Phalaenopisi only for type of purple flower

PEMANFAATAN LIMBAH PADI DAN BIOMASA TUMBUHAN LIAR CROMOLAENA ODORATA UNTUK MENINGKATKAN BEBERAPA SIFAT TANAH SULFAT MASAM KALIMANTAN BARAT Agusalim Masulili; Suryantini Suryantini; Agnes Tutik Purwani Irianti
BUANA SAINS Vol 14, No 2 (2014)
Publisher : Universitas Tribhuwana Tunggadewi

Penelitian ini bertujuan untuk mengetahui peranan limbah padi dan biomasa tumbuhan liar Cromolaena odorata sebagai bahan pembenah tanah sulfat masam hubungannya dengan peningkatan pertumbuhan dan hasil padi (Oryza sativa L.). Metode penelitian adalah survei lapangan dan ekperimental rancangan acak lengkap (RAL) di laboratorium, dengan perlakuan; kontrol (K0), biomasa Chromolaena odorata 10 ton ha-1 (K1), jerami padi 10 ton ha-1 (K2), biochar sekam padi 5 ton ha-1 (K3), abu sekam padi 5 ton ha-1 (K4), biomasa Chromolaena odorata 10 ton ha-1 + biochar sekam padi 5 ton ha-1 (K5), jerami padi 10 ton ha-1 + biochar sekam padi 5 ton ha-1 (K6), biomasa Chromolaena odorata 10 ton ha-1 + abu sekam padi 5 ton ha-1 (K7), jerami padi 10 ton ha-1 + abu sekam padi 5 ton ha-1 (K8). Masing-masing perlakuan diulang 3 kali sehingga terdapat 27 unit penelitian. Hasil penelitian menunjukkan bahwa aplikasi arang sekam padi secara tunggal maupun yang dikombinasikan dengan biomasa Chromolaena odorata dan jerami padi pada 6 minggu setelah inkubasi, dapat meningkatkan total pori tanah dan menurunkan bobot isi (BI) tanah, kekuatan tanah pada pF 0, pF 2, pF 2.5 maupun kering udara. Sedangkan terhadap sifat kimia tanah, dapat meningkatkan pH, C-organik, P-tersedia, kapasitas tukar kation (KTK) dan menurunkan Al-dd serta Fe larut. Hal ini mengindikasikan adanya potensi limbah padi dan biomasa Chromolaena odorata dalam memperbaiki sifat fisik maupun kimia tanah sulfat masam

KETERSEDIAAN NITROGEN DAN POPULASI BAKERI TANAH DALAM SISTEM TANAM SRI (SYSTEM OF RICE INTENSIFICATION) Nurul Istiqomah; Tanya Naomi Indarto; Virgus Amien Nugroho; Cahyo Prayogo
BUANA SAINS Vol 18, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

The obstacles that caused the declining of rice production is due to the reduction of soil fertility status. Various efforts were made to increase the production such as intensification and expansion in rice farming system. SRI cropping systems an alternative technique for improving soil productivity following maintaining water uses under an aerobic condition which exaggerated the raising of microorganisms activities in soil and improving the availability of nutrients particularly nitrogen status.This study was aimed to examine the impact of SRI system on mineral N status along with the population of soil bacteria which involving in nitrogen dynamic. The research was conducted in October 2015-March 2016 in Kepanjen-Malang using Randomized Block Design with 4 treatments and 4 replicates. Soil sampling was conducted at 0 and 100 Day After Planting (DAP) collecting at a depth of 0-20 cm and 20-40 cm. Measured soil parameter was including pH, organic-C, mineral N (NH4+ and NO3-). Soil bacteria are identified using plate count method (spread plate) for estimating their population. Analysis of Variance (ANOVA) was used followed by Duncan test at 5% level along with correlation and regression analysis.The results showed that the SRI cultivation system can increase the mineral N at the level of 14.09 ppm compared to their initial value, amounting to 57.48 ppm of Nitrate and the bacterial population at the level of 6.25 x 108 cfu g-1. The best treatment was found under the combination of NPK (15-15-15) and biofertilizer yielded at 8.42 t ha-1. Multivariate analysis results indicate that P0 treatment significantly different with treatment P1, P2, and P3. However, the treatment of P1 were not significantly different P3.

VARIABEL YANG MEMPENGARUHI PEMILIHAN SALURAN DISTRIBUSI SALAK KRESIKAN KECAMATAN GONDANGWETAN KABUPATEN PASURUAN Eri Yusnita Arvianti; Said Masduki
BUANA SAINS Vol 7, No 2 (2007)
Publisher : Universitas Tribhuwana Tunggadewi

The aims of this research were to describe the market balancing variable influence, goods balancing, producer balancing, distributor balancing toward the distributor channel choosing for zalacca in Pasuruan. Respondents were taken from the population using random simple sampling technique toward the zalacca farmer. The results showed that market balancing variable, goods balancing, producer balancing, and distributor balancing simultaneously influenced decision of distribution channel choosing of zalacca by farmers at the study area. The distributor balancing variable was the dominant factors influencing the decision of distribution channel choosing

UJI BERBAGAI MEDIA PADA AKLIMATISASI HIBRIDA DENDROBIUM Astutik Astutik
BUANA SAINS Vol 6, No 1 (2006)
Publisher : Universitas Tribhuwana Tunggadewi

An effort on improving value of orchid export trade offs either qualitatively or quantitatively needs sufficient orchid culture, beginning from acclimatization. The purpose of the study was to find out responses on various culture media toward the success of acclimatization of Dendrobium Hybrid resulted in appropriate media. This research used a randomly completely block design consisting of three treatments, i.e. broken bricks + edible fern, broken bricks + fresh coconut fibre, and broken bricks + coconut fibre compost. Every treatment was replicated nine times. The observed parameters included the beginning of new sprout of leaf, the amount of increasing leaves, the length of leaves and the width of leaves. The results showed that the treatment toward various media cultures affected all the parameters observed. A medium of broken bricks + fresh coconut fibre was the most appropriate media to acclimate orchid Dendrobium hybrid. The readily growth of bud was around 27,5 days, the highest development of leaves was around 1,81 days, the longest growth of leaves was approximately 5,08 cm and the widest growth of leaves was about 0,94 cm after 10 weeks acclimatization

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