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Effect of Rhizobium Numbers on Nodulation and Dinitrogen Fixation in Groundnut

Published online by Cambridge University Press:  03 October 2008

P. T. C. Nambiar
Affiliation:
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, PO, Andhra Pradesh 502 324, India
H. N. Ravishankar
Affiliation:
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, PO, Andhra Pradesh 502 324, India
P. J. Dart
Affiliation:
International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, PO, Andhra Pradesh 502 324, India

Summary

Glasshouse studies have shown that nodulation and dinitrogen fixation in groundnuts grown in a sand/vermiculite mixture increased with an increase in Rhizobium numbers inoculated onto each seed. Cultivars Robut 33-1 and TMV 2 required 106 rhizobia seed−1 for maximum nodulation and dinitrogen fixation, while cv. Kadiri 71-1 required larger numbers.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1983

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