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The effect of varying seed rate on the yield and yield components of oil-seed rape (Brassica napus)

Published online by Cambridge University Press:  27 March 2009

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

Two varieties of oil-seed rape were drilled in 1979–81 at a range of seed rates. Percentage establishment, plant weight, height, and the ratio of seed to total aboveground dry matter were lower in high-density plots. Seed yields were not increased when the seed rate was raised from 9·0 to 13·5 kg/ha (Expts 1 and 2) or from 4·5 to 18·0 kg/ha (Expt 3) owing to a compensating reduction in the number of pods per plant. Seed quality and 1000-seed weight were not influenced by the seed-rate treatments.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 99 , Issue 3 , December 1982 , pp. 561 - 568
Copyright
Copyright © Cambridge University Press 1982

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References

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