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Phorate-resistant mutant strains of chick pea (Cicer arietinum L.) Rhizobium sp. growth and their compatibility in symbiotic nitrogen fixation

Published online by Cambridge University Press:  27 March 2009

R. Rai ,
R. B. Sinha  and
V. Prasad
R. Rai
Affiliation:
Rajendra Agricultural University, Dholi Campus, Muzaffarpur 843121, Bihar, India
R. B. Sinha
Affiliation:
Rajendra Agricultural University, Dholi Campus, Muzaffarpur 843121, Bihar, India
V. Prasad
Affiliation:
Rajendra Agricultural University, Dholi Campus, Muzaffarpur 843121, Bihar, India
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Summary

Chick pea Rhizobium strain RG3 was treated with 30 μg/ml of N-nitrosoguanidine and two mutants isolated were resistant to 2000 μg phorate/ml yet retained the capacity to form nodules. On the basis of number of nodules, their dry weight, N2ase activity, total pyridine nucleotides and active iron contents, mutant strains G11 and G26 were found to be equally effective with and without phorate and resulted in significantly greater grain yield.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 98 , Issue 3 , June 1982 , pp. 547 - 551
Copyright
Copyright © Cambridge University Press 1982

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References

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