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Seasonal Effects on the Root Nodulation of Legumes

Published online by Cambridge University Press:  03 October 2008

G. B. Masefield
Affiliation:
Department of Agriculture, University of Oxford

Summary

To investigate seasonal effects on nodulation of legumes during an English summer, plants of Pisum sativum and Phaseolus vulgaris were sown in pots in the open at intervals of 14 days between March and July and the pots were watered on all days when rain did not fall. The weight of nodules per plant varied significantly between sowing dates and showed seasonal trends in both legumes, but in different directions. In P. sativum nodulation was at a minimum at the midsummer sowing date but with P. vulgaris the mid-summer sowing gave maximum nodulation. The data are further analysed in terms of number and size of nodules, and nodule weight as a percentage of plant weight.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1968

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References

REFERENCES

Masefield, G. B. (1952). Emp. J. exp. Agr. 20, 175.Google Scholar
van Dobben, W. H. (1962) Neth. J. agr. Sci. 10, 377.Google Scholar