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Merakati Handajaningsih
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Akta Agrosia
Published by Universitas Bengkulu
ISSN : 14103354     EISSN : 26157136     DOI : https://doi.org/10.31186/aa
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Akta Agrosia is dedicated to researchers or academics who intent on publishing research, scientific thinking, or other scientific ideas. The articles published in the Akta Agrosia are the author’s original works covering on Crop Production, Crop Physiology, Pest and Disease, Soil Science, Agronomy, Plant Genetics, Plant Breeding, Plant Biotechnology. Akta Agrosia is published by the Department of Crop Production, Faculty of Agriculture, University of Bengkulu, biennially in June and December. ISSN:1410-3354 (printed media) and eISSN: 2615-7136 (online media).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 8 Documents
 1 
Search results for , issue "Vol 19 No 2 (2016)" : 8 Documents clear
Keragaan Pertumbuhan dan Hasil Enam Belas Genotipe Tomat (Solanum lycopersicum L.) di Dataran Rendah Pardosi, Santi K.; Ruistikawati, Rustikawati; Suryati, Dotti
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Tomato is a high nutritional value fruit vegetables. Genetic variation is valuable plant breeding material which can be measured in terms of yield potential. This study aimed to compare the growth and yield components of 16 tomato genotypes in the lowlands. The experiment was conducted in Medan Baru Experimental Station of, Faculty of Agriculture, University of Bengkulu, with the elevation of 10 m above sea level. This was performed from September 2013 to January 2014. The experiment was set in a completely randomized design with a single factor of 16 tomato genotypes with 3 replications acounting to 48 experimental units, each of which consisted of 2 plants. The sixteen genotypes tested were Mirah, Berlian, CIN 06, SU, Kudamati 3, Lombok 3, Lombok 4, Makassar, Aceh 3, Aceh 5, Ranti Situbondo, Ranti, Situbondo Gelombang, Situbondo, Kemir, Meranti 2, Gondol Lonjong. There were significant differences in plant height, stem diameter, number of leaves, stomatal density, flowering age, harvest age, fruit diameter, fruit sweetness, fruit hardness, total fruit weight, fresh weight, and dry weight. Based on total fruit weight. The genotypes potentially cultivated in the lowlands are Ranti, Situbondo Gelombang, Kudamati 3, Situbondo, and Makassar.
Hubungan Antar Sifat Jagung Manis yang Dibudidayakan Secara Organik Lorenza, Eviya; Chozin, Mohammad; Setyowati, Nanik
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Capability of growing well under organic conditions is prerequisite for a sweet corn variety to provide high yield under organic cropping management. Therefore, development of high yielding sweet corn varieties for organic cropping system would require sufficient information on the association among the growth traits to facilitate the determination of criteria in the selection program. Objective of this study was to estimate the degree of association among plant growth and developmental traits, in terms of phenotypic and genotypic correlations, in 64 genotypes generated from a complete diallel cross of 8 inbred lines under organic cropping system. Study was conducted from January-March 2016 on Ultisol of Medan Baru, Kandang Limun, sub-district of Muara Bangkahulu, City of Bengkulu at 10 m above sea level. A randomized complete block design with three replications to allocate the genotypes on double row plots with 4 length and 20 cm planting space. No agrochemical inputs was applied in cultural practices. Data were collected for plant height,stem diameter, leaf area, leaf number, tasseling date, and silking date. Analysis of variance was performed to determine the significant variation among the genotype. The degree of association among trait was estimated by both phenotypic and genotypic correlations analysis. Analysis of variance showed significant variation for all observed traits. High phenotypic and genotypic correlations were revealed between the growth traits (plant height, stem diameter, leaf area, and leaf number) and between the developmental traits (tasseling date, and silking date). However, the growth traits showed low correlation to the developmental traits.
Korelasi Antar Komponen Pertumbuhan Vegetatif dan Generatif dengan Hasil pada Delapan Belas Genotipe Gandum di Dataran Tinggi Novrika, Donda; Herison, Catur; Fahrurrozi, Fahrurrozi
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Indonesia needs to develop high yielding wheat varieties adapted to tropical highland environment, through benefit selection in order to reduce grain imports. Pretiminary studies are often conducted to support the selection of activities to determine whether there is a closeness connection or relationship between variables with other variables through correlation studies. This study aims to determine the level of closeness between vegetative and generative variables and results in each 18 genotypes of wheat grown in the highlands. This study used a randomized complete block design with 3 replications. The treatments are 18 wheat genotypes : M1, M2, M3, M4, M5, M6, M7, M8, M9, SO 3, SO-8, SO- 9, JARISSA, SELAYAR, NIAS, DEWATA, SO-10, SO-6. Results showed that, plant height and number of seeds per panicle were positively correlated closely with yield of grain weight per clump.  Plant height of JARISSA and NIAS, and the number of seeds/panicle of M2, M3, M7, JARISSA and NIAS.  So that, variable can be used as selection criteria for potential high wheat genotypes grown at higher altitudes in tropical conditions, when the power of inheritance have predictive value (heritability) high. Therefore, these characters can be used as selection criteria for high yielding wheat genotypes.
Pertumbuhan Vegetatif Talas Satoimo dan Kultivar Lokal pada Dosis Pupuk Nitrogen yang Berbeda Yulian, Yulian; Turmudi, Edhi; Hindarto, Kanang S.; Bustamam, Hendri; Hutajulu, Juwita Noventina
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Taro (Colocasia esculenta L. Schott) is a plant that has an excellent economic and healthy value, as well as a great potential development of Bengkulu coastal area. That is because taro has wide adaptability, and can be consumed both as a staple food and healthy food alternative. This research was conducted to study the vegetative growth of two cultivars of taro given four different doses of nitrogen. This study applied a Randomized Complete Block Design (RCBD) with two factors. The first factor was the cultivar of taro consisted of two levels, namely Taro Satoimo (T1) and the Taro Local (T2). The second factor was the doses of nitrogen fertilizer which consisted of four levels namely: N0 = 0 kg / ha (control), N1 = 50 kg / ha (2.6 g, N2 = 100 kg / ha, and N3 = 150 kg / ha. Thus, obtained eight treatment combinations. Each treatment was repeated three times to get 24 plots. The results showed that based on increased vegetative growth, the cultivar Satoimo has a faster response than local cultivar. Satoimo has demonstrated another advantage because it produced some leaves and number new shoot. The best dose of nitrogen fertilizer on the vegetative growth of taro in the coastal area of Bengkulu is 150 kg/ha.
Pertumbuhan dan Hasil Tanaman Selada pada Tiga Jenis Tanah Mineral dengan Pemberian Dosis Pupuk Kandang Sapi yang Berbeda Putra, Dian Pramana; Handajaningsih, Merakati; Riwandi, Riwandi; Fahrurrozi, Fahrurrozi
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Growing lettuce on lowland mineral soil is an alternative to increase lettuce production. Mineral soil with less fertile soil property needs additional organic matter when it is used as growing medium for lettuce plants . The purpose of this study was to evaluate the growth and yield of lettuce on some mineral soil types and different doses of cow manure. The research was conducted in Surabaya village, Sungai Serut District, Bengkulu City. The experiment used a completely randomized design, two factors, five replications. The first factor was the three types of mineral soils, consisted of Inceptisol, Ultisol and Entisol. The second factor was dose of cow manure, consisted of 0 ton/ha, 5 ton/ha (7.065 g/polybag), 10 ton/ ha (14.13g/polybag), and 15 ton/ha (21.19 g/polybag ). Each combination was repeated 5 times in order to obtain 60 experimental units. The results showed that the mineral Ultisol generally resulted in better growth of lettuce plants than it was at Inceptisol and Entisols, which were indicated by the higher degree of the leaf greenness leaves, root fresh weight and shoot fresh weight. Dosage of fertilizer up to 15 tonnes/ha significantly increased shoot fresh weight and root fresh weight of plants. The interaction between soil types and doses of cow manure occured only on the variable of root fresh weight when it was grown on Ultisol with dose of cow manure at 8.07 tonnes/ha.
Respon Sawi pada Berbagai Konsentrasi dan Waktu Pemberian Ekstrak Air Kulit Buah Jengkol Segar Simanjuntak, Putriany; Nurjanah, Uswatun; Turmudi, Edhi
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

The aim of this study was to evaluate the response of mustard to various concentrations of jiringa-pericarp water extract applied before or at planting . The study was conducted in November 2015-January 2016 located in a greenhouse using Completely Randomized Design, 2 factors and 4 replications. The first factor, concentration of jiringa-pericarp water extract consisted of 6 treatments: 165 g / L, 330 g / L, 495 g / L, 660 g / L, 825 g / L and 990 g / L and as comparison were 4 control plants. The second factor consisted of application one week before planting and at the time of planting. Each experimental unit consisted of two plants. The results showed that the application jiringa extract at palnting time with the concentration of 825 g / L resulted in the lowest leaf area and root fresh weight. The percentage of mus tard growth inhibition respectively were 51.54% and 56.69% when compared to the control. Jiringa water extract applied at planting time inhibited mustard growth more significant when compared to that 1 week before planting. The lowest average values   for variables of leaf number, fresh weight and crown dry weight were obtained at 825 g / L concentration with a percentage of obstacles of 35.57%; 47.16% and 40.70% when compared with controls.
Pertumbuhan dan Produktivitas Jagung Manis pada Beberapa Sistem Tanam Wentasari, Risa
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

The purpose of this study was to determine the growth and productivity of sweet corn on a Single Row, Double Row, Row Twins and Twins Seed planting system. This study was conducted in an experimental garden of Politeknik Negeri Lampung, Hajimena South Lampung, in July-September, 2015. This study is based on randomized block design with one factor cropping system consists of 4 treatment ie : Single Row (SR) (20cm x 75cm), Double Row (DR) (20cm x 20cm x 80 cm), Twins Row (TR) (20cm x 10cm x 80 cm) , and TwinsSeed (TS) with plant spacing (40cm x 75cm two seed in one planting hole). Parameter observational studies high plants (cm), leaf number (cm), diameter (cm), lebar daun (cm) and long leaf (cm) and productivity  (ton/ ha). The data were analyzed using the F test at  1 % and 5 % level and than followed by test BNT.  The conclusion of this study were (1) planting system gives a response was not significantly different in stem diameter and leaf length, the difference is shown in plant height, number of leaves and leaf width, 2) There is a significant differences in the productivity cropping systems. Twins Row cropping systems have different productivity with a Single Row planting system, Double Row, Twins Seed and (3) Average Twins Seed planting system showed the highest productivity of 39.42 ton/ha.
Pematahan Dormansi Benih Kebiul (Caesalphinia bonduc L.) dengan Berbagai Metode Uyatmi, Yesi; Inoriah, Entang; Marwanto, Marwanto
Akta Agrosia Vol 19 No 2 (2016)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Seed of Caesalpinia bonduc L. is difficult to germinate due to the thick and hard seed coat. The research aims to evaluate various methods for breaking dormancy of C. bonduc seed. This study was conducted from December to January 2016 The way to break the dormancy were arranged in Completely Randomized Design. Eleven methods to solve the seed dormancy of C. bonduc were compared. The ways to break the dormancy were soaking in water with different temperatures. The temperatures were 30C for 0 hours, 5 hours, 10 hours, and 15 hours. Other techniques to break the dormancy were soaking in hot water at 10000C for 5 hours, 10 hours, and 15 hours. Warm stratification with 100% air humidity (RH) at 40C for five days, ten days and 15 days also included as treatments. The last method was seed piercing with a needle. The variables observed in this study were germination capacity, germination rate, epicotyl length, plant height, and root length. The results of this study showed that the 11 methods of breaking seed dorman cy significantly affected germination capacity, germination rate, emerging epicotyl, and plant height. Seed piercing classified as the most efficient method as indicated by the value of 100% in germination capacity, 1.43 in germination rate, 13.64 cm in plant height, and 6.16 cm in root length.0

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