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 : Bogor Agricultural University

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Abstract

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 Vol 3, No 2 (2014)
Publisher : Jurnal Lahan Suboptimal

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Abstract

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.
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

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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
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 Vol 5, No 2 (2016): JLSO
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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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

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Abstract

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.
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

Show Abstract | Original Source | Check in Google Scholar

Abstract

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