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. 1991 Feb;81(2):239-44.
doi: 10.1007/BF00215729.

Genotype x strain interactions for resistance to Fusarium head blight caused by Fusarium culmorum in winter wheat

C H Snijders  1 , F A Van Eeuwijk
Affiliations

Genotype x strain interactions for resistance to Fusarium head blight caused by Fusarium culmorum in winter wheat

C H Snijders et al. Theor Appl Genet. 1991 Feb.

Abstract

In 3 consecutive years, a set of 17 winter wheat genotypes, representing a wide range of Fusarium head blight resistance, was inoculated with four strains of Fusarium culmorum. Fusarium head blight ratings were analyzed. The interaction between genotypes, strains, and years was described using a Finlay-Wilkinson model and an Additive Main effects and Multiplicative Interaction effects (AMMI) model. The interaction consisted primarily of a divergence of genotypical responses with increasing disease pressure, modified by genotype specific reactions in certain years. The divergence was mainly caused by one very pathogenic strain. The Fusarium head blight resistance in this study can be described as horizontal resistance in terms of Vanderplank, with the exception of three genotypes selected from one particular cross that showed a 'strain-year combination' dependent resistance which was ineffective in 1 year.

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