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The effect of chlormequat on the yield and yield components of oil-seed rape

Published online by Cambridge University Press:  27 March 2009

D. H. Scarisbrick
Affiliation:
Wye College (University of London), Nr Ashford, Kent, TN25 5AH
R. W. Daniels
Affiliation:
Wye College (University of London), Nr Ashford, Kent, TN25 5AH
A. B. Noor Rawi
Affiliation:
Wye College (University of London), Nr Ashford, Kent, TN25 5AH

Extract

The objective of this study was to examine the effect of the chemical growth regulator chlormequat on the yield and yield components of oil-seed rape. Although this chemical is widely used in wheat production systems, its use as a morpho-regulator for oil-seed rape has not been examined thoroughly. A few Eastern European experiments have been published. Voskerusa (1972) applied it at 2, 4, 6 and 8 kg/ha to winter varieties in Czechoslovakia. His results, which agree with those of Fabry & Hannich (1972), demonstrated reduced winter kill using an autumn application. However, studies on modern varieties such as Rafal, now widely grown in European Economic Community countries, have not been reported in detail.

Type
Short Note
Copyright
Copyright © Cambridge University Press 1982

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References

Allen, E. J., Morgan, D. G. & Ridgman, W. J. (1971). A physiological analysis of the growth of oilseed rape. Journal of Agricultural Science, Cambridge 77, 339341.CrossRefGoogle Scholar
Fabry, A. & Hannich, K. (1972). The effect of autumn application of growth retardants (CCC, B-Nine and Phosphon D) on the yield components in winter rape. Rostlinna Vyroba 18 (6), 631636.Google Scholar
Harper, F. R. & Berkenkamp, B. (1975). Revised growth stage key for Brassica campestrisand Brassica napus. Canadian Journal of Plant Science 55, 657658.CrossRefGoogle Scholar
Voskerusa, J. (1972). The influence of CCC on the dry matter production, overwintering, yield and quality of winter rape. Zeitschrift für Acker und Pflanzenbau, 135 (3), 169177.Google Scholar