Benyamin Lakitan
Ministry of Research and Technology, Jakarta College of Agriculture, Sriwijaya University, Inderalaya, South Sumatera

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IDENTIFIKASI BEBERAPA AKSESI JARAK PAGAR (JATROPHA CURCAS L.) MELALUI ANALISIS RAPD DAN MORFOLOGI Susantidiana, ,; Wijaya, Andi; Lakitan, Benyamin; Surahman, Memen
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.539 KB) | DOI: 10.24831/jai.v37i2.1410

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The objective of this research was to study and cluster of Jatropha germplasm belonging to University of Sriwijaya.  This research was conducted from September 2007 until July 2008. The research used 14 accessions of Jatropha taken from some regions in Indonesia, namely: Komering, Palembang, Yogyakarta, Indralaya, ATP2, Pontianak, Lahat, Pagaralam, Curup, Lampung, Medan Aceh Besar, Pidi and Gorontalo.  Accessions of Jatropha curcas L. were planted at Agro Techno Park (ATP)  Bakung village, Indralaya Utara district Ogan Ilir, South Sumatera using Randomized Complete Block Design.  RAPD analysis using 20 primers was done  at RGCI (Research Group on  Crop Improvement), Bogor Agricultural University.  Dendrogram based on RAPD analysis  produced five groups that were: the first group was Komering, Lahat, Pidi, Indralaya, Aceh Besar, Pontianak and Curup.  The second group was Palembang and ATP2. The third group was Pagaralam, Gorontalo, and Medan.  Lampung was included in to fourth group.  The fifth group was Yogyakarta.  Dendrogram from morphological marker had also five groups.  First group was: Komering, Indralaya, Pontianak. Lahat, and Pagaralam.  Second group was: Palembang, Lampung, Pidi, Medan, and ATP2. Third group was: Curup. Fourth group was: Yogyakarta and Gorontalo.  Fifth group was: Aceh Besar. The difference of member from each groups between dendrogram using RAPD and morphological markers indicated that the bands resulted from RAPD did not have relation with characters observed.   Key words:  Jatropha curcas L, RAPD analysis, Morphologycal marker, cluster analysis
INCLUSIVE AND SUSTAINABLE MANAGEMENT OF SUBOPTIMAL LANDS FOR PRODUCTIVE AGRICULTURE IN INDONESIA Lakitan, Benyamin
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 3, No 2 (2014)
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (545.469 KB) | DOI: 10.33230/JLSO.3.2.2014.126

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There are uncountable research activities and technology development efforts have been carried out in Indonesia; however, very limited economically and/or socially beneficial technologies have been created. Very few indigenous technologies have been used in producing goods and providing services, including in agricultural sector. This problem is rooted on facts that most of the technologies developed are not relevant to real needs and/or problems of domestic farmers. Even if the technologies are substantially relevant; in many cases, they are not finacially affordable by domestic farmers, do not significantly increase profit if used, and/or less competitive compared to similar available technologies in the market. Limited availability of resources, at present and even more scarse in the future, elevates expectation on technology to contribute in establishing inclusive, productive, and sustainable agricultural development. To assure that developed technology will be relevant to the needs and contribute to agricultural development, farmers ought to be play significant active roles during priority setting, planning, and developing the technology. The real issues at present are increase in food demand as consequence of population growth and conversion of arable lands for uses in other sectors. These trends have led to intensifying agricultural activities on suboptimal lands. Efforts to increase agricultural productivity in suboptimal lands should not jeopardize sustainable function of the ecosystem and participation of local farmers. Sustainability and inclusivity should be maintained while increasing productivity. Traditional knowledge and local wisdom have to be treated as reference for developing technology for establishing productive agriculture on suboptimal lands.
POTRET BUDIDAYA PADI LEBAK OLEH PETANI LOKAL DI KECAMATAN PEMULUTAN, OGAN ILIR, SUMATERA SELATAN Lindiana, Lindiana; Lakitan, Benyamin; Herlinda, Siti; Kartika, Kartika; Widuri, Laily Ilman; Siaga, Erna; Meihana, Meihana
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 5, No 2 (2016): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (42.182 KB) | DOI: 10.33230/JLSO.5.2.2016.264

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Lindiana, et al. Rice Cultivation Images by Local Farmers in Pemulutan District, Ogan Ilir, South Sumatra. JLSO 5(2):153-158. Plans and efforts in increasing rice productivity at riparian wetlands can be commenced by introducing relevant technologies; however, the selected technologies should be based on real needs or problems faced by local farmers. As a pre-requisite, if the needs and problems are not comprehensively understood, government intervention to introduce new technology may not be effective since the technology may not be relevant or affordable to local farmers. Objectives of this research are to analyze characteristics of the wetlands, farmer?s adoption capacity, and technological preferences. The research was conducted in five villages at Pemulutan District. Qualitative Grounded Theory and Quantitative Survey were employed through dialogues with 100 local farmers.  Results of the research indicated that any effort to increase riparian wetland productivity should consider the unpredictability of flood occurrences and prolonged drought. These unfavorable conditions have limited local farmers to only grow rice once per year. Local farmers were almost solely depending on rice and cultivation of other crops were rarely observed, except limited vegetables grown on elevated border of paddy fields.
PERSEPSI PETANI TERHADAP BUDIDAYA CABAI SISTEM PERTANIAN TERAPUNG DI DESA PELABUHAN DALAM, KECAMATAN PEMULUTAN, OGAN ILIR Hasbi, Hasbi; Lakitan, Benyamin; Herlinda, Siti
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol 6, No 2 (2017): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.286 KB) | DOI: 10.33230/JLSO.6.2.2017.297

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Hasbi et al, 2017. Farmer Perception to Chilli Cultivtion in Floating Agricultural System in Pelabuhan Dalam Village, Ogan Ilir. JLSO 6(2):126-133.The purpose of this research was to utilize potential  waste of local resource especially mineral bottle as a floating raft, to train farmer to construct it, to increase farm production, to socialize how to produce inexpensive, widely available, good quality and environmental friendly floating raft made of mineral bottle, and to evaluate farmers response. This research was conducted at Pelabuhan Dalam Village, Subdistrict of Pemulutan, District of Ogan Ilir.  The step of this research were socialization to farmers, display the system of floating cultivation and farmers perception evaluation.  The results showed that the system was prospective to be developed based on statements of interested farmers.  One of the important finding was that the system was easy to maintenance. The farmers were optimistic that the system could be developed by them selves.
Shoot and Root Growth in Common Bean (Phaseolus vulgaris L.) Exposed to Gradual Drought Stress Widuri, Laily Ilman; Lakitan, Benyamin; Sodikin, Erizal; Hasmeda, Mery; Meihana, Mei; Kartika, Kartika; Siaga, Erna
AGRIVITA, Journal of Agricultural Science Vol 40, No 3 (2018): OCTOBER
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i0.1716

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Drought condition during the dry season is a major constraint for intensifying agricultural activities at riparian wetlands in Indonesia, particularly for annual vegetables, including common bean (Phaseolus vulgaris L.). Besides inhibiting growth and reducing yield, drought also causes alteration of the shoot and root growth and development. The objective of this study was to evaluate responses of common bean to three durations of drought stress and the bean ability to recover after termination of the stress treatments. Gradual drought stress treatments were imposed by withholding all water sources to the treated plants. Three durations of drought stress imposed were 4, 8, and 12 days. The ability of the stress-treated plants to recover was evaluated at 7 days after termination of each treatment. The result of this study revealed that common bean was able to tolerate and recover from gradual water deficit for up to 8 days; however, prolonged water deficit for 12 days inhibited the growth of above-ground organs in common bean. Despite root regrowth during the recovery period, plants previously treated with 12 days of drought were unable to recover but those treated with shorter drought stress period were able to recover.
Strategi Jalur-Ganda dalam Pemajuan Pertanian Indonesia: Memfasilitasi Generasi Milenial dan Menyejahterakan Petani Kecil Lakitan, Benyamin
Seminar Nasional Lahan Suboptimal 2019: Prosiding Seminar Nasional Lahan Suboptimal ?Smart Farming yang Berwawasan Lingkungan untuk Ke
Publisher : Seminar Nasional Lahan Suboptimal

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

Abstract

Lakitan B. 2019. Double track strategy for agriculture development in indonesia: facilitating millennial generation and improving livelihood of smallholder farmers. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal 2019, Palembang  4-5 September 2019. pp. 1-8. Palembang: Unsri Press.Agricultural development in Indonesia has not been able to solve two main fundamental problems. Firstly, advancement of agricultural technology failed to significantly improve livelihood of smallholder farmers; instead, it creates wider gap between developed technology and farmer?s adoption capacity. Secondly, educated young generation who has capacity to employ sophisticated technologies has not interested to work in agriculture sector. In 2018, there were 38.7 million farmers in Indonesia, where as 88.27 percent of them were categorized as informal workers. This number was about one third of total Indonesian workers. They could be time bombs if they are not treated wisely. Their livelihoods should be appropriately improved. The efforts require availability of relevant, affordable, and profitable agricultural technologies. Meanwhile, at present, only few of the millennials interested to work in agriculture sector. This small group of millennial farmers should be encouraged to stay in agriculture, in order to motivate more young generation to follow them. Urban and peri-urban agriculture based on relevant technologies seems to fit well with millennial farmers.Keywords: agricultural development, millennial farmers, welfare of farmers, urban agriculture 
Internal Versus Edge Row Comparison in Jajar Legowo 4:1 Rice Planting Pattern at Different Frequency of Fertilizer Applications Kartika, Kartika; Lakitan, Benyamin; Sanjaya, Nanda; Wijaya, Andi; Kadir, Sabaruddin; Kurnianingsih, Astuti; Widuri, Laily Ilman; Siaga, Erna; Meihana, Mei
AGRIVITA, Journal of Agricultural Science Vol 40, No 2 (2018): JUNE
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i0.1715

Abstract

Jajar legowo 4:1 cropping pattern has been adopted by rice farmers; however, there has been limited information on the comparison between internal and edge rows. In addition, the effects of timing and frequency of fertilizer applications on rice cultivated at riparian wetland also have to be understood. In this research, both single and split applications of fertilizer were employed. The single fertilizer applications were applied at 15 days after transplanting (DAT) (T1), 30 DAT (T2), 45 DAT (T3); and the split applications were 15+30 DAT (T4), 15+45 DAT (T5), 30+45 DAT (T6), and 15+30+45 DAT (T7). Results of this research indicated that crops in the edge rows produced higher leaf area index but those at internal rows produced higher dry weight biomass. Split fertilizer application to three times (T7) increased the weight of grains and number of filled spikelet but did not affect other shoot and root growth traits. Overall, fertilizer application increased leaf chlorophyll and nitrogen content. Jajar legowo 4:1 planting pattern and split fertilizer application to three times are recommended for increasing yield in rice cultivated at riparian wetlands.
Depth of Water-Substrate Interface in Floating Culture and Nutrient-Enriched Substrate Effects on Green Apple Eggplant Jaya, Karla Kasihta; Lakitan, Benyamin; Negara, Zaidan Panji
AGRIVITA, Journal of Agricultural Science Vol 41, No 2 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v41i2.2235

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A successful development of low cost floating culture system (FCS) has opened an opportunity for local farmers to cultivate vegetables during prolonged flooding at riparian wetlands. Research was aimed to identify the optimal depth of water-substrate interface (WSI) and optimal rate of NPK fertilizer application (RFA) in cultivating green apple eggplant using the FCS. Depths of WSI were adjusted to 0, 1, 3, and 6 cm and substrate was enriched with 8.4, 12.6, and 16.8 g NPK per pot. The enriched substrates were contained in pots and placed on floating rafts with variable WSI depths. Experiment was arranged in Split Plot Design. WSI was assigned as main plot and RFA was as subplot. The results exhibited that direct contact between water surface and substrate significantly increased water moisture content, enhanced shoot growth, and increased fruit yield, regardless the WSI depths. However, WSI treatments decreased SPAD value and restricted root elongation when WSI depth was more than 3 cm. The RFA treatments up to 16.8 g per pot could enhance shoot and root growth, and increased the fruit yield. This yield increase was associated with the increasing number of fruits, not the fruit size.
Inclusive and Ecologically-Sound Food Crop Cultivation at Tropical Non-Tidal Wetlands in Indonesia Lakitan, Benyamin; Lindiana, Lindi; Widuri, Laily I.; Kartika, Kartika; Siaga, Erna; Meihana, Mei; Wijaya, Andi
AGRIVITA, Journal of Agricultural Science Vol 41, No 1 (2019)
Publisher : Faculty of Agriculture University of Brawijaya in collaboration with PERAGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17503/agrivita.v40i0.1717

Abstract

Productivity and cropping intensity on non-tidal wetland in South Sumatra are considerably low and has been underutilized up to now. The majority of farmers in this ecosystem are smallholders with limited adoption capacity on introduced technologies and modern agricultural practices. The objectives of this research were (1) to comprehensively capture multidimensional constrains that restrained local farmers in increasing their agricultural productivity; and (2) to identify, assess, and develop substantially-relevant, financially-affordable, and socially-acceptable agricultural technologies and practices for smallholder farmers to increase productivity. This research was organized in three main activities: qualitative research employing Grounded Theory procedure, quantitative questionnaire-guided survey, and a series of laboratory and field experiments. The research results indicated that the main constraints in increasing productivity and cropping intensity on the non-tidal wetland in South Sumatra include (1) unpredictable flooding occurrence and low soil nutrients content (agronomic constraint), (2) low financial and technology adoption capacity of local farmers (economic constraint), and (3) public policy has not significantly escalated farmer?s motivation to increase food production (social and institutional constraint). This research suggests that multidimensional (technical, financial, ecological, and socio-cultural) approaches should be integrated in collective efforts for sustainably intensifying food production on the non-tidal wetland.
KERAPATAN DAN VIABILITAS KONIDIA BEAUVERIA BASSIANA DAN METARHIZIUM ANISOPLIAE PADA MEDIA IN VITRO PH RENDAH Rizkie, Lilian; Herlinda, Siti; ., Suwandi; Irsan, Chandra; ., Susilawati; Lakitan, Benyamin
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 17, No 2 (2017): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (128.83 KB) | DOI: 10.23960/j.hptt.217119-127

Abstract

Conidial density and viability of Beauveria bassiana and Metarhizium anisopliae grown on the low-pH in vitro medium. Liquid bioinsecticide with active ingredient from conidial entomopathogenic fungus has major constraints, namely short shelf life due to declining conidial viability and density is caused by low pH in the bioinsecticide carrier. This experiment aimed to measure the loss of conidial viability and density of Beauveria bassiana and Metarhizium anisopliae isolates grown on in vitro medium with low pH. Entomopathogenic fungus isolates were used as much as 28 isolates grown on in vitro medium at low pH, namely pH 5, 4, 3, and 2. The results showed that the fungus isolate that had the highest conidial density on in vitro medium at pH 5 was found on isolates of B. bassiana with code BPcMs (2.583 x 109 conidia mL-1), while the lowest one was found on isolates of B. bassiana with code of BWS Pantura (0.825x109 conidia mL-1). All isolate conidial density from in vitro medium with pH 2 decreased regularly. Conidial density of BPcMs isolate decreased to 2.483 x 109conidia mL-1, as well as BWS Pantura isolate also decreased to 0.425x109 conidia mL-1. The highest conidial viability at pH 5 was found on isolates of B. bassiana with code of BPcMs (51.572%), while the lowest conidial viability was found on isolate of B. bassiana with BTmPc code (15.040%). At pH 2, almost isolates tested had low conidial viability. The conidial viability of isolates BPcMs decreased to 47.037%%, while the isolates BTmPc also decreased to 12.778%. Therefore, the lower of the pH of the in vitro medium was, the lower of conidial viability and density of B. bassiana and M. anisopliae was