University of Hertfordshire

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Original languageEnglish
Pages81-86
Number of pages7
Publication statusPublished - 2010
EventCrop Protection in Northern Britain - Dundee, United Kingdom
Duration: 23 Feb 201024 Feb 2010

Conference

ConferenceCrop Protection in Northern Britain
Country/TerritoryUnited Kingdom
CityDundee
Period23/02/1024/02/10

Abstract

Summary: Leaf scald (caused by Rhynchosporium secalis) is one of the most
economically important diseases of barley. Data were collected from three seasons
of trials using two susceptible winter barley cultivars (Sumo and Saffron) and two
resistant cultivars (Flagon and Manitou). Levels of R. secalis DNA were
quantified from several growth stages (GS) throughout the growing season and
visual symptoms assessed. Results demonstrate that the pathogen was able to
colonise and sporulate extensively on apparently healthy leaves, and spread to
grain without symptoms being seen in the crop. This raises questions about how
the fungus interacts with the plant, what triggers lesions to develop and the role of
asymptomatic infection in pathogen spread, plant defence and crop yield.

Notes

Paper presented at the Dundee CPNB Conference on Environmental Management and Crop Protection in Northern Britain, 23-24 February 2010, The West Park Conference Centree, Dundee, Scotland. Conference Proceedings published by Bayer CropScience ISBN 0260-485X. Copies of the proceedings may be obtained from: T D Heilbronn, 74 a Errol Road, Dundee DD2 5AF, UK E-mail: tim@cpnb.org Tel: +44 (0)1382 562517 http://www.sipr.ac.uk/CPNB/Index_and_Proceedings_2010.pdf

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