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Nitrate Assimilation in Relation to Total Reduced N in Bengal Gram (Cicer arietinum)

Published online by Cambridge University Press:  03 October 2008

T. C. Pokhriyal  and
Y. P. Abrol
T. C. Pokhriyal
Affiliation:
Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi 110 012, India
Y. P. Abrol
Affiliation:
Nuclear Research Laboratory, Indian Agricultural Research Institute, New Delhi 110 012, India
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Summary

On the basis of a preliminary experiment with 20-day-old Cicer seedlings, wherein the values obtained by integrating the in vivo nitrate reductase (NR) activity with the duration closely approximated the actual reduced N, a field experiment was conducted with cv BG 203 (indeterminate type) to ascertain the extent to which the nitrate assimilated via the enzyme NR contributed to the total reduced N. Soil-derived N accounted for 15.1, 8.3 and 7.2% of the total reduced N at pre-flowering (I), profuse flowering (II) and seed filling (III) stages respectively. Out of the total soil-derived N, 10.1, 59.3 and 30.6% was reduced during stages I, II and III respectively.

Type
Research Article
Information
Experimental Agriculture , Volume 16 , Issue 2 , April 1980 , pp. 127 - 135
Copyright
Copyright © Cambridge University Press 1980

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References

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