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Efficacy of associative N2-fixation by streptomycin-resistant mutants of Azospirillum brasilense with genotypes of chick pea Rhizobium strains

Published online by Cambridge University Press:  27 March 2009

R. Rai
R. Rai
Affiliation:
Rajendra Agricultural University, Dholi Campus, DholiMuzaffarpur-843121, Bihar, India
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Summary

Azospirillum brasilense was treated with nitrosoguanidine and two mutants isolated which were resistant to 500 μg streptomycin/ml. Ultraviolet sensitivity, photoreactivation and effect of acriflavin on pre- and post-irradiation were studied. Chick pea showed an increase in grain yield, nodule dry weight, N2ase activity and active iron content of nodules when inoculated with A. brasilense or its mutants together with Rhizobium. The interaction between Rhizobium strains and genotypes of chick pea was significant.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 100 , Issue 1 , February 1983 , pp. 75 - 80
Copyright
Copyright © Cambridge University Press 1983

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