Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-21T16:16:06.210Z Has data issue: false hasContentIssue false
  • English
  • Français

Investigations into the use of plant growth regulators in oil-seed sunflower (Helianthus annuus L.) husbandry

Published online by Cambridge University Press:  27 March 2009

A. D. Baylis  and
J. W. Dickst
A. D. Baylis
Affiliation:
Department of Plant Sciences, The University, Leeds, LS2 9JT
J. W. Dickst
Affiliation:
Department of Plant Sciences, The University, Leeds, LS2 9JT
Get access Rights & Permissions [Opens in a new window]

Summary

The effects of some plant growth regulators on the growth and development of two cultivars of oil-seed sunflower (cvs Flambeau and Luciole) were examined in 1977 and 1978. Sunflower is a marginal crop for the United Kingdom, being late maturing and susceptible to infection by grey mould (Botrytis cinerea) during the seed-filling period.

An experiment in 1977 indicated that suitable growth regulators might improve sunflower husbandry principally by shortening the stem, allowing late applications of fungicide and insuring against lodging. A mixture of mepiquat chloride and ethephon (BAS 098 OOW) was the most effective stem shortener. Daminozide gave variable effects on yield depending on the rate and time of treatment. The number of seeds per m2 was the major determinant of yield; 1000-seed weights and oil contents were similar for all treatments. The proportion of linoleic acid in the oil was very high in all experiments.

In 1978 a second experiment involving daminozide and two sunflower cultivars revealed seasonal and varietal differences in response. The timing of growth regulator application seemed critical to affect seed yield. The third experiment, in 1978, investigated the results of applying BAS 098 OOW to four plant population densities varying from 40000 plants/ha to 160000 plants/ha. High plant population density advanced maturation by 2 weeks, but in these plots the crop lodged in the absence of growth regulator treatment.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 100 , Issue 3 , June 1983 , pp. 723 - 730
Copyright
Copyright © Cambridge University Press 1983

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Baylis, A. D. (1980). Growth and developmental responses of oil-seed sunflower to plant growth regulators. Ph.D. thesis, University of Leeds.Google Scholar
Baylis, A. D. & Dicks, J. W. (1979). Growth retardants, a possible aid to oil-seed sunflower husbandry. Joint Society of Chemical Industry/British Plant Growth Regulator Group Monograph 4, Recent Developments in the Use of Plant Growth Retardants (ed. Clifford, D. R. and Lenton, J. R.), pp. 53–66.Google Scholar
Bunting, E. S. (1976). The potential of minor field crops in British agriculture. Proceedings of the 1976 British Crop Protection Conference – Weeds, pp. 947–953.Google Scholar
Canvin, D. T. (1965). The effect of temperature on the oil content and fatty acid composition of the oils from several oil seed crops. Canadian Journal of Botany 43, 63–69.CrossRefGoogle Scholar
Cathey, H. M. (1964). Physiology of growth retarding chemicals. Annual Review of Plant Physiology 15, 271–302.CrossRefGoogle Scholar
Crompton, A. & Matthews, B. (1970). Soils of the Leeds District. Memoirs of the Soil Survey of Great Britain: England and Wales. Agricultural Research Council.Google Scholar
Cutting, O. (1976). Success with sunflowers. Arable Farming 3 (10), 34–35.Google Scholar
Cutting, O. (1977). Growers have reservations about sunflowers. Arable Farming 4 (1), 38–39.Google Scholar
Doty, H. O. (1978). Future of sunflower as an economic crop in North America and the world. In Sunflower Science and Technology (ed. Carter, J. F.), pp. 457–488. Madison, Wisconsin, U.S.A.: American Society of Agronomy.Google Scholar
Harper, F. & Ferguson, R. C. (1979). The effect of bitumen mulch and sowing date on the establishment and yield of oilseed sunflower (Helianthus annuus L.). Journal of Agricultural Science, Cambridge 93, 171–180.CrossRefGoogle Scholar
Hurt, E. F. (1944). Sunflower. London: Faber and Faber.Google Scholar
Johnson, B. J. & Jellum, M. D. (1972). Effect of planting date on sunflower yield, oil and plant characteristics. Agronomy Journal 64, 747–748.CrossRefGoogle Scholar
Lees, P. (1977). The future looks bright for UK grown sunflowers. Esso Farmer 29, 2–7.Google Scholar
SirMoMichael, J. (1979). Fats and atheroma: an inquest. British Medical Journal 1979 (1), 173–175.CrossRefGoogle Scholar
Marc, J. & Palmer, J. H. (1978). Determination of the length of the vegetative and pre-floral stages in the day-neutral plant Helianthus annuus by chilling pulses. Journal of Experimental Botany 29, 367–373.CrossRefGoogle Scholar
Massey, J. H. (1971). Effects of nitrogen rates and plant spacing on sunflower seed yields and other characteristics. Agronomy Journal 63, 137–138.CrossRefGoogle Scholar
Mian, A. L. & Gaffer, M. A. (1971). Effect of size of population and level of fertilization on seed yield of sunflower. Science and Industry 8, 264–268.Google Scholar
Morrison, W. R. & Smith, L. M. (1964). Preparation of fatty acid methyl esters and dimethylacetals from lipids with boron fluoride-methanol. Journal of Lipid Research 5, 600–608.CrossRefGoogle ScholarPubMed
Orchard, P. W. & Lovett, J. V. (1976). Chlormequat induced drought avoidance in sunflowers. Proceedings of the 7th International Sunflower Conference, Krasnodar, U.S.S.R. 2, 332–340.Google Scholar
Putt, E. D. (1963). Sunflowers. Field Crop Abstracts 16, 1–6.Google Scholar
Robinson, R. G. (1971). Sunflower phenology – year, variety and dato of planting effects on day and growing-day degree summations. Crop Science 11, 635–638.CrossRefGoogle Scholar
Robinson, R. G. (1978). Production and culture. In Sunflower Science and Technology (ed. Carter, J. F.), pp. 89–143. Madison, Wisconsin, U.S.A.: American Society of Agronomy.Google Scholar
Vljayalakshmi, K., Sanghi, J. D., Pelton, W. L. & Anderson, C. H. (1975). Effects of plant population and row spacing on sunflower agronomy. Canadian Journal of Plant Science 55, 491–499.CrossRefGoogle Scholar