Take-all in autumn-sown wheat, barley, triticale and rye grown with high and low inputs

A - Papers appearing in refereed journals

Gutteridge, R. J., Hornby, D., Hollins, T, W and Prew, R. D. 1993. Take-all in autumn-sown wheat, barley, triticale and rye grown with high and low inputs. Plant Pathology. 42 (3), pp. 425-431.

AuthorsGutteridge, R. J., Hornby, D., Hollins, T, W and Prew, R. D.
Abstract

Winter cultivars of wheat, barley, triticale and rye were grown under two contrasting husbandry systems (low and high inputs) at two locations (Woburn and Rothamsted) known to be infested with the take-all fungus. The sandy loam at Woburn is less fertile than the silty clay loam at Rothamsted. Root infection in these crops was assessed in spring and summer. Rye was least infected by the take-all fungus, wheat the most infected and barley and triticale had intermediate levels of infection. Barley yields were less affected by take-all than those of wheat or triticale, because barley was at a later growth stage by the time severe infection occurred. Yields of wheat and barley responded most to the high-input husbandry on the less fertile soil at Woburn. On the basis of quantity of grain, triticale would appear to be a good substitute for wheat on the less fertile soil when inputs are low, but not where they are high. At Rothamsted, yields of wheat and triticale were similar in both input systems. There was no strong support, at either site, for the contention that triticale could be a useful substitute for barley where low or high inputs are used. A total of 177 isolates of Gaeumannomyces graminis var. tritici (the causal fungus of take-all) were obtained from infected roots in these experiments and tested for their pathogenicity on wheat and rye seedlings. These tests revealed a range of pathotypes with varying pathogenicities to wheat and rye, but pathogenicities were not correlated with the host plant from which the fungi were isolated.

KeywordsAgronomy; Plant Sciences
Year of Publication1993
JournalPlant Pathology
Journal citation42 (3), pp. 425-431
Digital Object Identifier (DOI)doi:10.1111/j.1365-3059.1993.tb01521.x
Open accessPublished as non-open access
Funder project or code900
911
204
ISSN00320862
PublisherWiley

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