Skip to main content Accessibility help
×
Home

Effect of Sowing Depth on Nodulation, Nitrogen Fixation, Root and Hypocotyl Growth, and Yield in Groundnut (Arachis hypogaea)

  • P. T. C. Nambiar (a1) and B. Srinivasa Rao (a1)

Summary

Hypocotyl length in groundnut is a function of sowing depth. In field experiments deep sowing increased the mass of hypocotyl but decreased that of roots, pods and haulm. Few nodules were formed on the hypocotyls of plants from shallow sown seeds (4–5 cm deep). More hypocotyl nodules occurred on Virginia types when deep sown but the number and activity of nodules on the roots decreased. Nodules on the hypocotyl appeared later and fixed less nitrogen than root nodules. Although hypocotyl nodules fixed nitrogen during the later stages of plant growth, this activity could not compensate for the loss in nitrogenase activity due to deeper sowing. Deeper sowing also resulted in decreased pod yields.

Copyright

References

Hide All
Gregory, W. C., Smith, B. W. & Yarbrough, J. A. (1951). Morphology, genetics and breeding. In The Peanut – The Unpredictable Legume, 2888 (Ed. Frank, Selman Arant et al. ). Washington DC: The National Fertilizer Association.
Nambiar, P. T. C., Dart, P. J., Nigam, S. N. & Gibbons, R. W. (1982a). Genetic manipulation of nodulation in groundnut. In Biological Nitrogen Fixation Technology for Tropical Agriculture, 4956 (Eds Graham, P. H. and Harris, S. C.). Cali, Colombia: Centro Internacional de Agriculture Tropical.
Nambiar, P. T. C., Dart, P. J., Srinivasa Rao, B. & Ramanatha Rao, V. (1982b). Nodulation in the hypocotyl region of groundnut (Arachis hypogaea L.). Experimental Agriculture 18:203207.
Nambiar, P. T. C. & Dart, P. J. (1983). Factors influencing nitrogenase activity (acetylene reduction) by root nodules of groundnut (Arachis hypogaea L.). Peanut Science 10:2629.

Effect of Sowing Depth on Nodulation, Nitrogen Fixation, Root and Hypocotyl Growth, and Yield in Groundnut (Arachis hypogaea)

  • P. T. C. Nambiar (a1) and B. Srinivasa Rao (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed