Seed production of Agropyron epens (L.) Beauv in arable crops in England and Wales in 1969

A - Papers appearing in refereed journals

Williams, E. D. and Attwood, P. J. 1971. Seed production of Agropyron epens (L.) Beauv in arable crops in England and Wales in 1969. Weed Research. 11 (1), pp. 22-30. https://doi.org/10.1111/j.1365-3180.1971.tb00971.x

AuthorsWilliams, E. D. and Attwood, P. J.
Abstract

Summary. Spikes oi Agropyron repens (L.) Beauv. were collected from field crops (mostly spring barley and winter wheat) in England and Wales near the time of crop harvest. Seeds per spike were counted and their germination tested in soil in the glasshouse. About 95% of the samples contained viable seeds; about one third of the samples had fewer than 5 viable seeds/spike, a third between 6 and 15 and a third more than 15. The average number of viable seeds/spike for all samples was 13. Spikes from spring barley (152 samples) had an average of 11 and a maximum of 51 viable seeds and those from winter wheat (42 samples), 20 and 48 respectively. Samples collected within 3 weeks after mid-July had fewer viable seeds/spike than those collected later. Samples containing morphologically-different spikes had more viable seeds/spike than apparently uniform samples, and spikes from dense field populations more seeds than those from sparse populations.

Year of Publication1971
JournalWeed Research
Journal citation11 (1), pp. 22-30
Digital Object Identifier (DOI)https://doi.org/10.1111/j.1365-3180.1971.tb00971.x
Open accessPublished as non-open access
ISSN00431737
PublisherWiley

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