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The effect of Terpal on the yield and yield components of oil-seed rape (Brassica napus L.)

Published online by Cambridge University Press:  27 March 2009

J. F. Chapman ,
D. H. Scabisbrick  and
R. W. Daniels
J. F. Chapman
Affiliation:
Wye College (University of London), Ashford, Kent, TN25 5AH
D. H. Scabisbrick
Affiliation:
Wye College (University of London), Ashford, Kent, TN25 5AH
R. W. Daniels
Affiliation:
Wye College (University of London), Ashford, Kent, TN25 5AH
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Extract

The objective of this study was to examine the effect of the chemical growth regulator Terpal (a mixture of mepiquat chloride and ethephon or 2 chloroethyl phosphonic acid) on the pattern of branching, plant height and yield components of winter oil-seed rape (cv. Jet Neuf). Mepiquat chloride (a quaternary ammonium compound with similar antigibberellin properties to cycocel) was developed as a morphoregulator for cotton where it has been shown to reduce plant height, shorten internodes and increase boll retention (Willard et al. 1977). The activity of ethephon has been attributed to its release of ethylene which influences a wide range of developmental processes, for example fruit abscission and ripening (Chatterjee, 1977; Gvozdenovic, Dulic & Slavic, 1978), growth retardation (Van Andel & Verkerke, 1978) and also the extent of lodging in cereals (Hill, Joice & Squires, 1982).

Type
Short Note
Information
The Journal of Agricultural Science , Volume 100 , Issue 3 , June 1983 , pp. 745 - 748
Copyright
Copyright © Cambridge University Press 1983

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References

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