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[en] Green House experiments were conducted to study symbiotic properties of Sinorhizobium Fredii, J-TGS50. Sinorhizobium Fredii USDA 192, USDA 201, USDA 205, USDA 206, USDA 217 and Bradyrhizobium japonicum USDA 110 were used as references. Yeast extract mannitol broth culture of the bacteria were made and used as inoculation for several local and imported soybean varieties used in this study. Plants were harvested at 20 days after inoculation. Number of nodules were counted, fresh weight of nodules and shoot were determined. S. Fredii J-TGS50 and S. Fredii USDA 192, USDA 201, USDA 205, USDA 206, USDA 217 were found different in their symbiotic properties. S. Fredii J-TGS50 formed nodules on same imported soybean. While there were no nodules obtained from the plant inoculated with S. Fredii USDA 192, USDA 201, USDA 205, USDA 206, USDA 217. S. Fredii J-TGS50 and recommended B. Japonicum USDA 110 formed nodule on several local soybean varieties. There was no differences between those two bacteria either in nodulation efficiency or in the effectiveness of the formed nodules. Results of this study can be concluded that S. Fredii, J-TGS50 is a native to Indonesian soil and it is a promising soybean nodule forming bacteria in Indonesia. Using indigenous bacteria is valuable. Since they are mostly more tolerant and adaptable than the introduced ones. An important aspect for the success of Biological Nitrogen Fixation (BNF) is insight in the structure of indigenous soybean rhizobia populations. Study on the biodiversity of soybean rhizobia was important conducted. (author)
Source
Singgih Sutrisno; Sofyan Yatim; Pattiradjawane, EIsje L.; Ismachin, Moch; Mugiono; Marga Utama (National Nuclear Energy Agency, Jakarta (Indonesia)) (eds.); Nelly Dhevita Leswara; Umar Mansur (University of Indonesia, Jakarta (Indonesia)) (eds.); Syamsul Arifin Achmad (Bandung Institute of Technology, Bandung (Indonesia)); Komaruddin Idris (Bogor Agricultural University, Bogor (Indonesia)) (and others); Centre for Research and Development of Isotopes and Radiation Technology, National Nuclear Energy Agency (Indonesia); 323 p; ISBN 979-3558-03-2; 
; Feb 2004; p. 81-87; The Scientific Meeting on Research and Development of Isotopes Application and Radiation; Seminar Ilmiah Penelitian dan Pengembangan Aplikasi Isotop dan Radiasi; Jakarta (Indonesia); 17-18 Feb 2004; Also available from Center for Development of Nuclear Informatics, National Nuclear Energy Agency, Puspiptek Area, Fax. 62-21-7560923, PO BOX 4274, Jakarta (ID); 18 refs.; 3 tabs.; 2 figs.
; Feb 2004; p. 81-87; The Scientific Meeting on Research and Development of Isotopes Application and Radiation; Seminar Ilmiah Penelitian dan Pengembangan Aplikasi Isotop dan Radiasi; Jakarta (Indonesia); 17-18 Feb 2004; Also available from Center for Development of Nuclear Informatics, National Nuclear Energy Agency, Puspiptek Area, Fax. 62-21-7560923, PO BOX 4274, Jakarta (ID); 18 refs.; 3 tabs.; 2 figs.