An analysis of primordium initiation in Avalon winter wheat crops with different sowing dates and at nine sites in England and Scotland

A - Papers appearing in refereed journals

Kirby, E. J. M., Porter, J. R., Day, W., Adam, J. S., Appleyard, M., Ayling, S., Baker, C. K., Belford, R. K., Biscoe, P. V., Chapman, A., Fuller, M. P., Hampson, J., Hay, R. K. M., Matthews, S., Thompson, W. J., Weir, A. H., Willington, V. B. A. and Wood, D. W. 1987. An analysis of primordium initiation in Avalon winter wheat crops with different sowing dates and at nine sites in England and Scotland. The Journal of Agricultural Science. 109 (1), pp. 123-134. https://doi.org/10.1017/S0021859600081065

AuthorsKirby, E. J. M., Porter, J. R., Day, W., Adam, J. S., Appleyard, M., Ayling, S., Baker, C. K., Belford, R. K., Biscoe, P. V., Chapman, A., Fuller, M. P., Hampson, J., Hay, R. K. M., Matthews, S., Thompson, W. J., Weir, A. H., Willington, V. B. A. and Wood, D. W.
Abstract

The initiation of leaf and spikelet primordia was studied at sites ranging in latitude from Newton Abbot (50·6°N) to Aberdeen (57·2°N) in crops sown in the middle of September, October and November 1983. The rate of primordium initiation tended to decrease from south to north but there were also marked differences between quite close sites.

The rate of leaf initiation increased with temperature but photoperiod had little effect; the rate of spikelet initiation was affected both by temperature and by photoperiod. There were differences in the total number of leaves initiated which were only partlyexplained by differences in vernalization.

Expressing leaf and spikelet initiation rates in terms of thermal and photo-thermal time respectively showed a constant rate of leaf initiation and a constant and more rapid rate of spikelet initiation.

RESP-09867

Year of Publication1987
JournalThe Journal of Agricultural Science
Journal citation109 (1), pp. 123-134
Digital Object Identifier (DOI)https://doi.org/10.1017/S0021859600081065
Open accessPublished as non-open access
FunderBiotechnology and Biological Sciences Research Council
Output statusPublished
PublisherCambridge University Press
Cambridge University Press (CUP)
ISSN0021-8596

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