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The effect of paclobutrazol on plant height and seed yield of oil-seed rape (Brassica napus L.)

Published online by Cambridge University Press:  27 March 2009

D. H. Scarisbrick ,
A. A. Addo-Quaye ,
R. W. Daniels  and
S. Mahamud
D. H. Scarisbrick
Affiliation:
Wye College (University of London), Ashford, Kent
A. A. Addo-Quaye
Affiliation:
Wye College (University of London), Ashford, Kent
R. W. Daniels
Affiliation:
Wye College (University of London), Ashford, Kent
S. Mahamud
Affiliation:
Wye College (University of London), Ashford, Kent
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Summary

The effect of paclobutrazol (applied at several concentrations and timings) on stem length and the seed yield of oil-seed rape was explored in three field trials during 1981–4. Spring applications were most effective in reducing plant height, but they had an adverse influence on the yield components. Autumn applications increased seed yield in one season, but were less effective in the final trial when soil conditions were much drier at establishment. Data indicated that autumn treatments may increase the productivity of the uppermost racemes. Future studies must investigate the persistency of paclobutrazol in the soil, and its possible influence on subsequent arable cropping.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 105 , Issue 3 , December 1985 , pp. 605 - 612
Copyright
Copyright © Cambridge University Press 1985

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References

REFERENCES

Addo-Quaye, A. A. (1985). Chemical manipulation of the structure, development and yield of oil-seed rape (Brassica napus). Ph.D. thesis, University of London (Wye College).Google Scholar
Batch, J. J. (1981). Recent developments in growth regulators for cereal crops. Outlook on Agriculture 10 (8), 371–378.Google Scholar
Bowerman, P. (1984). Plant growth regulators on oilseed rape – an unresolved problem. In Aspects of Applied Biology. 6. Agronomy, physiology, plant breeding and crop protection of oil-seed rape, pp. 91–99. Association of Applied Biologists, British Crop Production Council.Google Scholar
Chapman, J. F. (1982). Chemical growth regulator studies on oilseed rape (Brassica napus). Ph.D. thesis, University of London (Wye College).Google Scholar
Chapman, J. F., Scakisbbick, D. H. & Daniels, R. W. (1983). The effect of Terpal on the yield and yield components of oil-seed rape. Journal of Agricultural Science, Cambridge 100, 745–749.CrossRefGoogle Scholar
Froggatt, P. J., Thomas, W. D. & Batch, J. J. (1982) The value of lodging control in winter wheat as exemplified by the growth regulator pp. 333. In Opportunities for Manipulation of Cereal Productivity, British Plant Growth Regulator Group, Monograph, pp. 71–87.Google Scholar
Hampton, J. G. & Hebblethwaite, P. D. (1985). The effect of the growth regulator paclobutrazol (pp. 333) on the growth, development and yield of Lolium perenne grown for seed. Grass and Forage Science 40 (1), 93–103.Google Scholar
Hutley-Bull, P. D. & Schwabe, W. W. (1982). Some effects of low concentration gibberellic acid during early growth on morphogenesis in wheat. In Chemical Manipulation of Crop Growth and Development (ed. McLaren, J.), pp. 329–342. London: Butterworths.Google Scholar
Leaver, B. G., Shearing, S. J. & Batch, J. J. (1982). pp. 333 – A new broad spectrum growth retardant. Proceedings of the British Crop Protection Conference, pp. 3–10.Google Scholar
Mahamud, S. (1983). Influence of chemical plant growth regulators on the development and yield of oil-seed rape (Brassica napus). Ph.D. thesis, University of London (Wye College).Google Scholar
Noor Rawi, A. B. (1982). The effects of plant population and plant growth regulators on oil-seed rape. M.Phil, thesis, University of London (Wye College).Google Scholar
Scarisbrick, D. H., Daniels, R. W. & Noor Rawi, A. B. (1982). The effect of chlormequat on the yield and yield components of oil-seed rape. Journal of Agricultural Science, Cambridge 99, 453–456.CrossRefGoogle Scholar
Shearing, S. J. & Batch, J. J. (1982). Amenity grass retardation – some concepts challenged. In Chemical Manipulation of Crop Growth and Development (ed. McLaren, J.), pp. 467–484. London: Butterworths.Google Scholar
Tayo, T. O. & Morgan, D. G. (1975). Quantitative analysis of growth, development, and distribution of flowers and pods in oil-seed rape (Brassica napus). Journal of Agricultural Science, Cambridge 85, 103–110.Google Scholar