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Competitiveness and effectiveness of carbendazim-resistant mutant and indigenous Rhizobiumstrains of chick pea (Cicer arietinutnLinn.) in calcareous soil

Published online by Cambridge University Press:  27 March 2009

R. Rai
R. Rai
Affiliation:
Bajendra Agricultural University, Dholi Campus, Dkoli, Muzaffarpur, Bihar, India-843121
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Summary

Chick pea Rhizobiumstrain RG 4 was treated with 30 /tg/ml of N-nitrosoguanidine and four mutants isolated were resistant to 400 /tg carbendazim/ml. Only two of the mutants (M 1 and M 4) retained the capacity to form nodules. On the basis of number of nodules, their dry weight, nitrogenase activity, triphenyl tetrazolium chloride reductase activity and active iron content of nodules, mutant strains M 1 and M 4 were found to be equally effective for nitrogen fixation both with and without carbendazim (bavistine) and resulted in significantly greater grain yield than the corresponding uninoculated treatments.

Information

Type
Research Article
Information
The Journal of Agricultural Science , Volume 104 , Issue 2 , April 1985 , pp. 341 - 344
Copyright
Copyright © Cambridge University Press 1985

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