Assessing plant health in a network of experiments on hardy winter wheat varieties in France: patterns of disease-climate associations - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement
Article Dans Une Revue European Journal of Plant Pathology Année : 2016

Assessing plant health in a network of experiments on hardy winter wheat varieties in France: patterns of disease-climate associations

Résumé

A data set generated by a multi-year (2003 – 2010) and multi-site network of experiments on winter wheat varieties grown at different levels of crop manage- ment is analysed in order to assess the importance of climate on the variability of wheat health. Wheat health is represented by the multiple pathosystem involving five components: leaf rust, yellow rust, fusarium head blight, powdery mildew, and septoria tritici blotch. An overall framework of associations between multiple diseases and climate variables is developed. This framework involves disease levels in a binary form (i.e. epidemic vs. non- epidemic) and synthesis variables accounting for climate over spring and early summer. The multiple disease- climate pattern of associations of this framework con- forms to disease-specific kn owledge of climate effects on the components of the pathosystem. It also concurs with a (climate-based) risk factor approach to wheat diseases. This report emphasizes the value of large scale data in crop health assessment and the usefulness of a risk factor approach for both tactical and s trategic decisions for crop health management.
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Dates et versions

hal-02634444 , version 1 (27-05-2020)

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Citer

Serge Savary, Céline Jouanin, Irène Félix, Emmanuelle Gourdain, François Piraux, et al.. Assessing plant health in a network of experiments on hardy winter wheat varieties in France: patterns of disease-climate associations. European Journal of Plant Pathology, 2016, 146 (4), pp.741-755. ⟨10.1007/s10658-016-0954-2⟩. ⟨hal-02634444⟩
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