Hordeum chilense resistance to powdery mildew and its potential use in cereal breeding |
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| Authors: | D Rubiales J K M Brown A Martín |
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| Institution: | (1) Instituto de Agricultura Sostenible, C.S.I.C., Apdo 3048, 14080 Córdoba, Spain;(2) Cambridge Laboratory, I.P.S.R., Colney Lane, NR4 7UJ Norwich, UK |
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| Abstract: | Summary
Hordeum chilense is a wild barley with high crossability with Triticum, Hordeum and Secale. Its amphiploid with wheat, tritordeum, has potential as a new crop. H. chilense is highly resistant to the powdery mildew diseases of both wheat and barley. Whereas tritordeum is resistant to barley powdery mildew, its reaction to wheat powdery mildew is similar to that of its wheat parent. However H. chilense contributes to a reduced density of mildew colonies. This quantitative resistance of tritordeum is diluted at higher ploidy levels. |
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| Keywords: | disease resistance Erysiphe graminis f sp tritici Erysiphe graminis f sp hordei Hordeum chilense intergeneric hybridization powdery mildew tritordeum |
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