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Effects of CCC on Bread Wheat in Kenya

Published online by Cambridge University Press:  03 October 2008

J. F. Seitzer
Affiliation:
Plant Breeding Station, Njoro, Department of Agriculture, Kenya*

Summary

CCC applied to bread wheat, in 1967 and 1968 as a foliar spray at 1·40 and 2·28 kg./ha. a.i., prevented and/or delayed lodging to some extent. However, this effect was small and complete control of lodging seems to be unlikely, even when using large amounts. CCC increased grain yields, by 1·5 to 10·9 qu./ha., depending on the extent to which lodging was reduced. Significant depressions in yield were obtained, presumably owing to an observed increase incidence in ear diseases, particularly Septoria nodorum. The increase in grain yield was due mainly to an increase in 1000 grain weight and grains per ear, whereas the effect on tillers per unit area was slightly negative. Where no lodging occurred, there was a slight but non-significant tendency for increasing grain yields after CCC treatment.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1970

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References

REFERENCES

Caldicott, J. J. B. & Lindley, C. D. (1964). Seventh British Weed Control Conference.Google Scholar
Hanus, H. (1967). Z. Acker- u. Pfl. Bau 125, 40.Google Scholar
Humphries, E. C., Welbank, P. J. & Witts, K. J. (1965). Ann. appl. Biol. 56, 351.CrossRefGoogle Scholar
Humphries, E. C., Welbank, P. J. & Williams, E. D. (1967). Nature 215, 782.Google Scholar
Mayr, H. H. & Presoly, E. (1963). Z. Acker- u. Pfl. Bau 118, 109.Google Scholar
Mayr, H. H., Primost, E. & Rittmeyer, G. (1962). Bodenkultur 13, 27.Google Scholar
Pinthus, M. J. & Halevy, A. H. (1965). Israel J. Agric. Res. 15, 159.Google Scholar
Pinthus, M. J. & Rudich, J. (1967). Agrochimica 11, 565.Google Scholar
Plaut, Z. & Halevy, A. H. (1966). Physiol. Plant. 19, 1064.Google Scholar
Primost, E. (1964). Z. Acker- u. Pfl. Bau 119, 211.Google Scholar
Schröder, H. & Rhode, W. (1965). Z. Acker- u. Pfl. Bau 122, 365.Google Scholar
Sturm, H. & Jung, J. (1964). Z. Acker- u. Pfl. Bau 120, 232.Google Scholar
Tolbert, N. E. (1960). Plant Physiol. 35, 380.CrossRefGoogle Scholar