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Akta Agrosia

Agrosia
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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 106 Documents

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Agronomic Performances of Rice Lines on Non-Tidal Swampland Mohammad Chozin; Sarina Silalahi; Masdar Masdar; Sumardi Sumardi
Akta Agrosia Vol 22, No 1 (2019)
Publisher : Faculty of Agriculture, The University of Bengkulu

A successful rice production on swampland would require a planting material from high yielding varieties adaptated to the swampy ecosystem. This study was carried out to compare the growth and yield characteristics of five rice lines and a check variety as grown on non-tidal swampland. The lines were F4 generation of bulk selection from the crosses involving Bengkulu swamp rice landraces (Hanafi Putih, Tigo-tigo, Harum Curup, and Lubuk Durian) and high yielding varieties for the irrigated field (Sidenuk and Bestari). The trial was conducted on a shallow non-tidal swampland with stagnant inundation no more than 50 cm in depth often occurred during the plant life cycle. The lines and the check variety (Inpara 4) were arranged in a randomized complete block design with three replications. Observations were made for the agronomic performances of the plant, including plant height, total tiller number clump-1, effective tiller number clump-1, heading date, maturity date, panicle length, grain number panicle-1, 100-grain weight, and grain yield clump-1. Significant variation among the genotypes was found for all observed traits. On average, the evaluated lines showed comparable growth and yield performances to the check variety. Tigo-tigo × Bestari was the tallest line and potential for medium depth swampland. This line showed good overall agronomic performances and yielded relatively higher than the check variety, but delayed in attaining maturity. For shallow swampland, Hanafi Putih x Sidenuk exhibited the most potent line by having good overall agronomic and yield performances, except late in maturity. For early maturing line, Lubuk Durian x Hanafi Putih showed its potential for shallow swampland. Although this line was not the best, it showed better overall agronomic performances than the check variety. Keywords: F4 lines, growth and yield performance, rice landrace, swampland, plant maturity

Keragaman Genetik, Heritabilitas dan Korelasi Antar Karakter Tanaman Tomat di Dataran Rendah Helfi Eka Saputra; Muhamad Syukur; Syarifah Iis Aisyah
Akta Agrosia Vol 18, No 2 (2015)
Publisher : Faculty of Agriculture, The University of Bengkulu

The main problem in the cultivation of tomato plants in Indonesia are not available varieties of potentially high yield, good fruit quality and can adapt well to the low altitude. Therefore, the assembly of superior varieties of tomatoes low altitude are needed. Research objective is to determine the genetic diversity, heritability and determine the relationship between the characters for the assembly of tomato varieties are high yielding lowland. The experiments were performed using the Randomized Complete Block Design the single factor that genotype by 20 with three replications. The results showed there are six characters that have a broad genetic diversity and high heritability, namely plant height, leaf length and width, number of fruits per plant, fruit length and width. Correlation analysis between characters indicate the number of fruits per plant suitable for use as a character selection for yield potential. Number of fruits per plant of the highest owned by IPB T23. Fruit weight per plant of the highest owned by IPB T 1.

Growth and Yield Response of Peanut (Arachis hypogaea L.) to Cow Manure Dosage and Phosphorus Fertilizer on Ultisol Listati Silitonga; Edhi Turmudi; Widodo Widodo
Akta Agrosia Vol 21, No 1 (2018)
Publisher : Faculty of Agriculture, The University of Bengkulu

ABSTRACTPeanut plant production has decreased almost every year, caused by several factors such as cultivation techniques, diseases, varieties, competition with other commodities and the increasingly narrow land area. One effort to improve the yield of peanuts by optimizing ultisol land for cultivation of plants. Ultisol soil is one of acid soils, high Al content, low organic matter content, and low cation exchange capacity. Provision of fertilizer is one effort made to maximize the use of ultisol land. This study aims to determine the optimal dose of cow manure and phosphorus fertilizer for peanut plants and to determine the dose of cow manure and the appropriate dose of phosphorus fertilizer for peanut plant. The design used in this experiment was Randomized Complete Block Design (RCBD) with two factors arranged factorially. The first factor was dosage of cow manure consisting of 4 treatment levels i.e. 0 ton ha-1, 10 ton ha-1, 20 ton ha-1 and 30 ton ha-1. The second factor is phosphorus fertilizer (SP-36) consisting of 3 levels i.e. 0 kg ha-1, 100 kg ha-1 and 200 kg ha-1. From these two factors, there were 12 treatment combinations each treatment was repeated 3 times, so that 36 experiments were obtained. The results showed that the dosage of cow manure did not significantly affect the growth and yield of peanut plants. The dosage of phosphorus fertilizer did not significantly affect all variables of observation except on seed weight. The combination of dosage of cow manure and phosphorus fertilizer has no significant effect on the growth and yield of peanut plant. Keywords: Peanut, Cow Manure, Phosphorus and Ultisol

Pertumbuhan dan Hasil Tanaman Selada pada Tiga Jenis Tanah Mineral dengan Pemberian Dosis Pupuk Kandang Sapi yang Berbeda Dian Pramana Putra; Merakati Handajaningsih; Riwandi Riwandi; Fahrurrozi Fahrurrozi
Akta Agrosia Vol 19, No 2 (2016)
Publisher : Faculty of Agriculture, The University of Bengkulu

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.

Genetic Variability and Heritability Estimates of Growth and Yield Component of Curly Chili Pepper Rayuli Anira; Catur Herison; Dotti Suryati
Akta Agrosia Vol 20, No 2 (2017)
Publisher : Faculty of Agriculture, The University of Bengkulu

Success in a breeding program is primarily determined by the availability of information about the genetic diversity of the genetic material used and the expected heritability of the character to be improved. The objective of this study was to determine genetic diversity and heritability of growth and yield components of 10 curly chili genotypes. This research was conducted in September 2015 - February 2016 in the Medan Baru field experiment of Faculty of Agriculture at Kandang Limun Village, Muara Bangkahulu Subdistrict, Bengkulu City. The experiment was arranged in Completely Randomized Design (CRD) with ten genotypes and six replications. The genotypes used were Local Payakumbuh, Ferosa, Laris, Kopay, Romario, Keriting Hitam, Local Curup, Bogota, Sempurna and Mario. The results showed that genetic diversity of the ten varieties was narrow based on plant height variables, dichotomous height, stem diameter, flowering age, harvest age, fruit length, fruit diameter, weight per fruit and number of fruits. Stem diameter, fruit length, fruit diameter and weight per fruit had moderate heritability estimates; meanwhile, anthesis and number of fruits showed low heritability.

Acclimatization of Pencil Orchid (Papillionanthe hookeriana Rehb.f) as Affected by Different Types of Planting Media and Fertilizing Frequency Sustri Febriyani; Dwi W Ganefianti; Atra Romeida; Reny Herawati
Akta Agrosia Vol 22, No 1 (2019)
Publisher : Faculty of Agriculture, The University of Bengkulu

Acclimatization is a process of an environmental adaptation from heterotrophic conditions to autotrophic conditions. In order to be successful in acclimatization, it requires proper planting media and enough nutrition supply. The objective of this experiment were to determine the best planting media and the best spraying frequency of leaf fertilizer on Pencil orchid growth during acclimatization period. The experimental design used was Randomized Complete Block Design, arranged in factorial (2 factors, 3 replications). The first factor was type of planting media: Coconut Coil, Rockwool, Wood Shavings, and Fern Roots. The second factor tested was fertilizing frequencies: every 2 days, every 3 days, and every 4 days. The results showed that the best media for acclimatization of Pencil orchid was fern root fertilized every four days, the best media for growing Pencil orchid was fern root and Wood Shavings, and the best fertilizing frequency to promote Pencil orchid growth were every 3 days or every 4 days.Keywords: Pencil orchid, acclimatization, planting media, fertilization

Pengujian Berbagai Tipe Tanam Jajar Legowo terhadap Hasil Padi Sawah Dia Novita Sari; Sumardi Sumardi; Eko Suprijono
Akta Agrosia Vol 17, No 2 (2014)
Publisher : Faculty of Agriculture, The University of Bengkulu

Planting wetland paddy by setting row space could be a method to increase rice production. Legowo system is row planting method where we are able to apply different row types on paddy field. The objective ofthis research was to identify the best row planting type of ‘Jajar Legowo’ on growth and yield of wetland paddy. Six row plantings, including 2:1 type (means 2 rows are splited by wide space/ legowo), 3:1 type, 4:1 type, 5:1type, 6:1 type, and 7:1 typ, were tested in a Randomized Complete Block Design with 3 replications Results of the experiment revealed that the highest growth and yield as showed by total number of tillers (28), number ofproductive tillers (25), dry-mill rice (66.16 g per plant), and yield difference of dry-mill rice (50.43% per plot) was found at row planting type 2:1. Therefore, row planting type 2:1 can be selected as the best row.

Rootstock Incision Type and the Origin of Bud on the Scion Influence the Success Rate of Budding Propagation of “Rimau Gerga Lebong” Tangerine Debby R Dhini; Hermansyah Hermansyah; Supanjani Supanjani
Akta Agrosia Vol 21, No 2 (2018)
Publisher : Faculty of Agriculture, The University of Bengkulu

The development of citrus crops is directed to produce tangerine plants that lead to substitute imported fruits by the development of budding seedlings technique using local varieties citrus. This research was conducted in November 2016 until March 2017 in citrus nursery of Horticultural Seed Center of Pematang Donok Village, Kabawetan Sub-district, Kepahiang Regency, Bengkulu Province. The research was arranged in a Completely Random Design with combination of two treatments, the first treatment was the origin of bud on the scion plant, they were E1 (upper part of the shoot scion), E2 (middle part of the shoot scion), E3 (basal of the shoot scion). The second treatment was cut type on the rootstock, they were J1 (H type), J2 (Forkert slice), J3 (T wedge). The treatment was repeated three times, so there were 27 experimental units. Each experimental unit consisted of 10 liners, so there were 270 liners of the experiment. The result of this research showed that incision types of H model and Forkert model, as well as the bud originated from the middle and the basal part of shoot scion were good to support the success rate of budding propagation of Rimau Gerga Lebong (RGL) tangerine.

Potensi Produksi Enam Hibrida Jagung pada Ultisol di Provinsi Bengkulu Eko Suprijono; Rustikawati Rustikawati; Atra Romeida; Meko Gustian
Akta Agrosia Vol 18, No 2 (2015)
Publisher : Faculty of Agriculture, The University of Bengkulu

Ultisol is one of marginal land type quite extensively presence in Indonesia, including the province of Bengkulu. The use of varieties tolerance to acidity stress is the best manner to utilize of this type of land with relatively low cost and environmentally friendly. The objective of this research was to evaluate theyield potential of six maize hybrids developed to soil acidity tolerance. The experiment was conducted at the Experimental Farm Medan Baru, Kandang Limun Village, Muara Bangkahulu District, Bengkulu City, from August to November 2015. The experiment was arranged in a randomized completely block design with four replications. As the treatment were newly developed maize hybrids, namely CT5, CT8, CT9, CT13, CT14 and CT15. The variables measured were cob length, cob diameter, 100-seed weight and the estimated yield/ha. Qualitative variables supporting to corn yield were the cob position, seed color, seed type and seed row arrangement. The results indicated that the hybrid CT8 showed the highest estimated yield in Ultisol among hybrids evaluated, with the estimation of 6.5 tons per hectare. Qualitatively, theseeds of hybrid CT8 were a horse tooth type, pale yellow color, and stright line arrangement.

Respon Sawi pada Berbagai Konsentrasi dan Waktu Pemberian Ekstrak Air Kulit Buah Jengkol Segar Putriany Simanjuntak; Uswatun Nurjanah; Edhi Turmudi
Akta Agrosia Vol 19, No 2 (2016)
Publisher : Faculty of Agriculture, The University of Bengkulu

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.

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Contact Name Merakati Handajaningsih

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Editorial Address Dept of Crop Production Faculty of Agriculture, University of Bengkulu WR Supratman St. Kandang Limun, Bengkulu 38371

Location Kota bengkulu, Bengkulu INDONESIA

Abstract

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Contact Name
Merakati Handajaningsih

Contact Email
Merakati Handajaningsih

Phone
+62818871578

Journal Mail Official
aktaagrosia@unib.ac.id

Editorial Address
Dept of Crop Production Faculty of Agriculture, University of Bengkulu WR Supratman St. Kandang Limun, Bengkulu 38371

Location
Kota bengkulu,

Bengkulu

INDONESIA