Identification of wheat genotypes with adult plant resistance to powdery mildew

Komáromi, J. and Vida, G. and Puskás, K. and Szunics, L. and Veisz, O. (2006) Identification of wheat genotypes with adult plant resistance to powdery mildew. Cereal Research Communications, 34 (2-3). pp. 1051-1058. ISSN 0133-3720

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Abstract

As in the case of other wheat diseases, adult plant resistance (APR) to powdery mildew remains effective longer than monogenic hypersensitive resistance, so the objective was to identify winter wheat genotypes with this type of resistance. Field and greenhouse tests conducted on 41 varieties and breeding lines indicated that 36 were susceptible in the seedling stage, and only five were resistant in all stages of development. It is probable that these latter genotypes contain major resistance genes. The area under the disease progress curve was the same for most of the wheat genotypes as for the APR control variety Massey, but varieties and lines with significantly better resistance were also identified. Among the genotypes in the Martonvásár breeding stock, Mv Táltos and the line Mv07-03 were found to have excellent adult plant resistance.

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