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All Journal Buletin Agrohorti Naturalis : Jurnal Penelitian Pengelolaan Sumberdaya Alam dan Lingkungan AGRIVITA, Journal of Agricultural Science Akta Agrosia Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis
Atra Romeida
University of Bengkulu
Agriculture, Biological Sciences & Forestry Humanities Economics, Econometrics & Finance Education Social Sciences Other

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Journal : Akta Agrosia

 1 
Rooting of Mini-Cuttings of guava cultivars (Psidium guajava L.) Treated with IBA under Misting Irrigation Supanjani, Supanjani; Rahayu, Hatari; Suprijono, Eko; Romeida, Atra; Yulian, Yulian
Akta Agrosia Vol 23, No 1 (2020)
Publisher : Faculty of Agriculture, The University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.23.1.27-32

Abstract

       Guava (Psidium guajava L.) is a plant whose fruit is very popular in Indonesia because it contains high vitamin C and its leaves can be used as herbal medicine. Orchard expansion of selected cultivars and fruit production of guava can be achieved vegetatively through  propagation by using mini-cuttings with the use of Indole Butyric Acids (IBA). A study was conducted to compare rooting success of mini-cuttings of herbaceous stem of four guava cultivars with IBA treatment. Four guava cultivars tested were Bengkulu Round, Getas, Crystal, and Bangkok.  Mini-cuttings were immersed in IBA solution at 0 ppm or 1000 ppm. Cultivar and IBA treatments were arranged factorially in a randomized complete  block design with  3 replications, each consisting of 25 cuttings. Variables observed included percentage of original-leaf shedding, percentage of emerging shoots, percentage of sprouting cuttings, new leaf number, root number, root length, and percent of rooted cuttings. The results demonstrated that cultivars affected rooting percentage, sprouted percentage, percentage of original-leaf fall, and number of root.  Getas had highest rooting and sprouting percentages, and showed lowest number of  original-leaf shedding; whereas, Bangkok demostrated greatest number of root.  IBA treatment increased the number of root and the number of original-leaf shedding, but reducing rooting percentage of mini-cutting. There was no interaction between cultivar and IBA teratment.
Potensi Produksi Enam Hibrida Jagung pada Ultisol di Provinsi Bengkulu Suprijono, Eko; Rustikawati, Rustikawati; Romeida, Atra; Gustian, Meko
Akta Agrosia Vol 18 No 2 (2015)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

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.
Acclimatization of Pencil Orchid (Papillionanthe hookeriana Rehb.f) as Affected by Different Types of Planting Media and Fertilizing Frequency Febriyani, Sustri; Ganefianti, Dwi W; Romeida, Atra; Herawati, Reny
Akta Agrosia Vol 22 No 1 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

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
Bio-fortified Compost as A Substitute for Chemical N Fertilizer for Growth, N Accumulation, and Yield of Sweet Corn Marwanto, Marwanto; Wati, Shinta Puspita; Romeida, Atra; Handajaningsih, Merakati; Adiprasetyo, Teguh; Hidayat, Hidayat; Purnomo, Bambang; Murcitro, Bambang Gonggo; Siswanto, Usman
Akta Agrosia Vol 22 No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

ABSTRACTFinding the appropriate method of fertilizer application to simultaneously enhance farm productivity and ensure ecosystem sustainability has been receiving a lot of attention. A field experiment was carried in the Research Plot Agriculture Faculty Bengkulu University Campus Indonesia in 2017. The purpose of this study was (1) to assess the significant effects of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC) under equal N conditions on growth, N accumulation, and yield of sweet corn, and (2) to determine the appropriate level to which inorganic N fertilizer could be reduced and equivalently replaced by bio-fortified compost to promote sweet corn growth and yield. The treatments consisted of six different proportions of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC). Each treatment was designed on the basis of equal amount of total N input from a combination of both fertilizers (138 kg N ha-1).  They were arranged in a randomized block design with 3 replications. They included (1) 100% IF plus 0% BC, (2) 75% IF plus 25% BC, (3) 50% IF plus 50% BC, (4) 25% IF plus 75%, (5) 0% IF plus 100% BC, and (6) no IF and no BC. The results showed that the increasing proportion of IF replaced by BC resulted in an increase for all variables (except for plant height) but they decreased when 100% IF substitution with 100% BC was applied. Among the partial substitution treatments, 50% IF plus 50% BC consistently produced the best growth, N accumulation, and yield increase. Treatments of 50% IF plus 50% BC and 25% IF plus 75% BC produced the highest green cob weight with husk per plot (10.74 – 10.84 kg plot-1), which was 16% to 19% higher than treatment of 100% IF plus % BC. The three partial substitution treatments produced crop yield components as good as treatment of 100% IF plus 0% BC. Treatment of 0% IF plus 100% BC reduced plant growth, N accumulation, and crop yield and its components. The appropriate level to which IF could be reduced and equivalently replaced by BC was at the range of 25% to 75%. Hence, a suitable replacement of inorganic N fertilizer with bio-fortified compost is considered a reasoned way to simultaneously increase crop yield and reduce environmental degradation.Keywords: organic fertilizer, chemical fertilizer, bio-fortification, chemical fertilizer substitution, bio-fortified compost
Rooting of Mini-Cuttings of guava cultivars (Psidium guajava L.) Treated with IBA under Misting Irrigation Supanjani, Supanjani; Rahayu, Hatari; Suprijono, Eko; Romeida, Atra; Yulian, Yulian
Akta Agrosia Vol 23 No 1 (2020)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

       Guava (Psidium guajava L.) is a plant whose fruit is very popular in Indonesia because it contains high vitamin C and its leaves can be used as herbal medicine. Orchard expansion of selected cultivars and fruit production of guava can be achieved vegetatively through  propagation by using mini-cuttings with the use of Indole Butyric Acids (IBA). A study was conducted to compare rooting success of mini-cuttings of herbaceous stem of four guava cultivars with IBA treatment. Four guava cultivars tested were Bengkulu Round, Getas, Crystal, and Bangkok.  Mini-cuttings were immersed in IBA solution at 0 ppm or 1000 ppm. Cultivar and IBA treatments were arranged factorially in a randomized complete  block design with  3 replications, each consisting of 25 cuttings. Variables observed included percentage of original-leaf shedding, percentage of emerging shoots, percentage of sprouting cuttings, new leaf number, root number, root length, and percent of rooted cuttings. The results demonstrated that cultivars affected rooting percentage, sprouted percentage, percentage of original-leaf fall, and number of root.  Getas had highest rooting and sprouting percentages, and showed lowest number of  original-leaf shedding; whereas, Bangkok demostrated greatest number of root.  IBA treatment increased the number of root and the number of original-leaf shedding, but reducing rooting percentage of mini-cutting. There was no interaction between cultivar and IBA teratment.
Genotypic and Phenotypic Variability and Heritability of Generative Traits, Yield Components, and The Yield in 39 Cayenne Pepper (Capsicum annuum L.) Genotypes Almunawar, Said Agil; Herison, Catur; Handajaningsih, Merakati; Alnopri; Romeida, Atra; Rustikawati; Sukisno
Akta Agrosia Vol 28 No 1 (2025)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/aa.28.1.42-50

Abstract

Cayenne pepper is a horticultural crop with high economic value, and its productivity can be improved through plant breeding programs. Genotypic and phenotypic variability, and heritability are important parameters for such programs. This study aimed of obtaining information on genotypic and phenotypic variability as well as heritability of generative traits, yield components, and the yield in 39 cayenne pepper genotypes. The research was conducted from May to October 2024 at the Experimental Farm, the University of Bengkulu. A Randomized Complete Block Design (RCBD) was used, involving 39 genotypes planted in three replications, with 20 plants per replication. The results showed broad genotypic variability was found in days to anthesis, days to first harvest, number of fruits per plant, fruit diameter, fruit length, pedicel length, and average fruit weight. Broad phenotypic variability was observed in all traits. High heritability was found in days to anthesis, fruit diameter, fruit length, and average fruit weight. These findings are highly valuable for determining effective selection strategies in plant breeding and the development of superior cultivars. Keywords: breeding, chili pepper, diversity, genotypic variance, phenotypic variance.  
Co-Authors Afrisa, Hendrio Agus Martono AGUS SUSATYA Almunawar, Said Agil Alnopri Anwar, Guswarni Bambang Gonggo Murcitro Bambang Purnomo Barchia, M. Faiz Damres Uker Dwi W Ganefianti Dwi Wahyuni Ganefianti, Dwi Wahyuni Eko Suprijono Febriyani, Sustri Gunggung Senoaji Helfi Eka Saputra Herison, Catur Hidayat Hidayat Indarwanto Marwanto Marwanto, Marwanto Meko Gustian Merakati Handajaningsih Mimi Sutrawati Mohammad Chozin, Mohammad Rahayu, Hatari Rahayu, Hatari Rani, Eka Reflis Reny Herawati Rustikawati Rustikawati Rustikawati Saputra, Eko Adi Satria Putra Utama Sukisno Supanjani, Supanjani Supanjani, Supanjani Surjono H. Sutjahjo Teguh Adiprasetyo Usman Siswanto Wati, Shinta Puspita Yulian, Yulian Yulian, Yulian Yuristia, Rahmi Yuwana