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Fungicide resistance in cereal pathogen populations

Reference	BBS/E/C/00813181
Principal Investigator / Supervisor	Dr Derek Hollomon
Co-Investigators / Co-Supervisors
Institution	Rothamsted Research
Department	Rothamsted Research Department
Funding type	Research
Value (£)	11,917
Status	Completed
Type	Institute Project
Start date	01/04/1997
End date	30/04/1997
Duration	1 months

Abstract

Current models for predicting the incidence of fungicide resistance, the rate and extent of its spread in field populations, and the impact of use strategies designed to delay or avoid resistance, are based largely on theory and involve many assumptions in place of data. They have seldom been validated by glasshouse or field experiments. Key determinant factors for which data are lacking include basic genetic variation, including mutation and sexual recombination, and the relative pathogenicity, competitiveness and mobility within and between crops of sensitive and resistant forms. The use of new techniques of genetic analysis and genetic marking, together with conventional pathological and epidemiological methods, will permit more precise studies on the behaviour of resistance genes in pathogen populations under controlled environment, glasshouse and field conditions. These in turn will allow modification and refinement of models, and assessment of the effects on resistance build-up of existing and new strategies of fungicide use, as well as the implications of using lower fungicide dose rates.

Summary

unavailable

Committee	Closed Committee - Plant & Microbial Sciences (PMS)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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