Survival and competitiveness of Bradyrhizobium sp. in the rhizosphere of pigeonpea (Cajanus cajan) |
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| Authors: | S S Dudeja A L Khurana |
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| Institution: | (1) Department of Microbiology, Haryana Agricultural University, 125004 Hisar, India |
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| Abstract: | Summary The survival of Bradyrhizobium  Cajanus strain CC1021 in the soil and rhizosphere of pigeonpea Cajanus cajan (L.) Millsp] was determined by most probable number and fluorescent antibody techniques. The survival of strain CC1021 was poor under field compared with pot-culture conditions. Although the rhizosphere of pigeonpea promoted the growth of native pigeonpea rhizobia, although no increase in the number of rhizobia was observed with the inoculant strain. Under similar conditions of rhizosphere colonization the competitiveness of strain CC1021 with cv UPAS 120 and ICPL 312 was 10% and 66016 during the first year and 8.4% and 33.3%, respectively, during the second year. |
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| Keywords: | Survival Pigeonpea Cajanus cajan Bradyrhizobium rhizosphere N2 fixation Competitiveness |
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