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Rini Budi Hastuti
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Biochemistry, Genetics & Molecular Biology

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RESPON PEMBERIAN PUPUK UREA DAN PUPUK KANDANG SAPI TERHADAP PERTUMBUHAN DAN KANDUNGAN MINYAK ATSIRI TANAMAN JAHE MERAH [Zingiber officinale (L.) Rosc var. rubrum ] Linda Saputri; Endah Dwi Hastuti; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 7 No. 1 Januari 2018
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Red Ginger plant is one of the export commodities and has benefits as perfume industry, cosmetics, health, and spices. Currently, the volume of demand for ginger products continues to increase, but the demand has not been met because of low productivity so that the need for intensification and provision of fertilizer. The purpose of this research is to study the effect of urea and cow manure on the growth of red ginger plants and to study the type of urea fertilizer and cow manure that gives maximum effect to growth and the essential oil content of Ginger Red plant. Observed parameter include plant height, leaves numbers, plant wet weight, and essential oil content. The study used Completely Randomized Design (RAL) with 4 treatments and 3 replications. Intended treatments are without fertilizer, with cow manure, with urea fertilizer, and with combination of urea fertilizer and cow manure. Data were analyzed with Analysis of Variance (ANOVA) at 95% significant level. Red ginger plants gave cow manure 150 g / polybags tend to produce plant height, plant wet weight, and higher essential oil content. Key Words : Growth, red ginger, urea fertilizer, cow manure
Pengaruh Konsentrasi dan Frekuensi Pemberian Pupuk Organik Cair (POC) Terhadap Pertumbuhan dan Produksi Bawang Merah (Allium ascalonicum L.). Moh. Khanif Nasuha; Sarjana Parman; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 4 No. 2 April 2015
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Shallots (Allium ascalonicum L) is a vegetable crop that has an important role in the economy  of  Indonesian  society.  This  can  be  seen  from  the  BPS  (Central  Bureau  of Statistics) on onion  consumption in the country in 2014 amounted to 935,000 tons. The high consumption of red onion  cultivation resulted not memperhatiakan environmental factors are often farmers excessive use of inorganic fertilizers, resulting in soil becomes solid. Giving treatment Liquid Organic Fertilizer (POC) is expected to increase growth and yield of onion because the content of the complete haranya both micro and macro, and is also able to improve soil quality. The purpose of this research know the effect of the concentration, frequency and interaction of liquid organic fertilizer on the growth and production  of  onion  (Allium  ascalonicum  L).  The  design  used  in  this  research  was Randomized Complete Block  Design (RCBD) factorial design with two factors, namelythe concentration  of  fertilizers  and  the  frequency  of  fertilizer  application.  This  study menggunakan6  treatment with a combination of concentration and frequency are K0F1 (0% 5 days), K0F2 (0% 10 days), K1F1 (25% 5 days), K1F2 (25% of 10 days), K2F1 (50% 5 days), K2F2 (50% of 10 days). Observations made during the 50 days after planting. Growth  parameters measured were plant height and number of leaves, the production parameters measured were wet weight, dry weight, and the number of tubers. Data analysis using ANOVA test and further tests using  test Duncan Multiple Test (DMRT) at 95% confidence level. The conclusion of this research is the  concentration of liquid organic fertilizer (POC) significantly affect the growth parameters and onion production and the frequency and interaction no significant effect on growth parameters and onion production. Keywords: onion, organic fertilizer, concentration, frequency.
PENGARUH SUHU PENGERINGAN YANG BERBEDA TERHADAP KUALITAS CABAI RAWIT (Capsicum frutescens L.) Evi Ari Parfiyanti; Rini Budi Hastuti; Endah Dwi Hastuti
Jurnal Akademika Biologi Vol. 5 No. 1 Januari 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Chili pepper has a high economic value but it belongs to the type of fruit that can easily damage because of the climacteric phase, therefore, it is needed a proper postharvest handling, either by drying with different temperatures for 14 hours. The research objective is to find out the effect of drying temperature for the quality of chili pepper and find out the best drying temperature that influences the quality of chili pepper. The research design that used is completely randomized design (CRD) with three replications. The drying temperatures that use are T1 (50°C), T2 (60°C) and T3 (70°C). The research parameter consists of weight loss, water content, vitamin C and discoloration. Methods of analyzing the data that used is analysis of variance (ANOVA) continued by significant different test of Duncan Multiple Range Test (DMRT) at the 95% signification level. The chili pepper that drainaged in temperature of 50°C can shows the best result for defend of chili pepper color and texture. The highest contens of vitamin C can be found in temperature of 50°C that show the number of 63.287 mg%. The drying temperature of 70°C give the highest weight loss that show the number of 3.833%  and give the lowest water content for about 72.4%. The research of study show that the drying temperature influence the alteration of chili pepper quality which show the result that it can decrease the fruit weight loss, the water content of chili pepper, vitamin C contens and also the color and the texture of chili pepper.Keywords: Chili pepper, drying temperature, weight loss, water content, vitamin C
DAYA AKUMULASI LOGAM BERAT TEMBAGA (Cu) PADA AKAR DAN DAUN Avicennia marina (Forsk.) BERDASARKAN FASE PERTUMBUHAN YANG BERBEDA DI PANTAI MANGKANG SEMARANG Ahmad Fadhli Jundana; Endah Dwi Hastuti; Rini Budi Hastuti
Jurnal Akademika Biologi Vol. 5 No. 3 Juli 2016
Publisher : Departemen Biologi, Fakultas Sains dan Matematika Undip

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Abstract

Distribution of heavy metals in coastal areas need to know as an early indication of pollution. One type of metal that was widely used in household and industrial activity is copper (Cu). Some pollutants were wasted on the ground will have accumulated in coastal areas, including in the mangrove ecosystem. The research aims to determine the accumulated rate Cu in roots and leaves of Avicennia marina by different growth phases. It was conducted in mangrove ecosystems Mangkang, Semarang. The research design was factorial completely randomized design 2 x 3, the first factor were organs (roots and leaves) and the second factor were phase (Seedling, Sapling and Trees) with twice of  sampling in a 30-day period, the data were analyzed by Analyzed of Variates (ANOVA). Parameter of the research were Cu metal content in the roots and leaves of mangrove, as well as water and sediment. The results showed that the levels of Cu in sediments and aquatic environments of Avicennia marina rangely 2.989-7.026 mg/kg and 0.186-1.676 mg/l, there was an interaction between the growth phase and organs Avicennia marina in accumulating Cu with a probability of 0.006 (< 0.05), the highest interaction was the tree phase and root organ section (0.126) and the lowest was the seedling phase and leaf organ (0.020). The highest of Biological Concentration Factor (BCF) value was tree phase and root organ (92.9- 46.2) and the lowest was the seedling phase and leaf organ (17.2-14.7). The highest of Distribution Coefficient (DC) value was found in seedling phase environment (726.3-1887.7) and the lowest was found in sapling phase environment (493.2-603.4).Key Words : Accumulation, Avicennia marina (forks.), Heavy Metal Cu, Biological Concentration Factor, Distribution Coefficient
Co-Authors Afiyatul Aini Ahmad Fadhli Jundana Endah Dwi Hastuti Evi Ari Parfiyanti Hadyani M Hanifa Heru Puji Raharjo Hesti Fajar Utami Linda Saputri Moh. Khanif Nasuha Nimas Disri Putri Nuzula Muharrahmi Ruli Nur Hidayanti Sarjana Parman Sri Darmanti Sri Haryanti Syella Clarah Titi Wulandari Tyagita Andarani