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  • Author or Editor: J. C. Gallott x
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Progenies from 48 small-fruited Malus species and cultivars were tested for heritable, high-level resistance to powdery mildew [Podosphaera leucotricha (Ell. & Ev.) Salm.]. Six-week-old seedlings from controlled crosses and open pollination were inoculated by dusting with conidia in the greenhouse. ‘David’, ‘White Angel’, M. × robusta (Robusta 5), M. × robusta ‘Korea’, and an unnamed selection M. × robusta (24-7-7,8) all produced some seedlings in their progenies that remained free of infection after inoculation. The mode of inheritance of resistance was not clear.

Open Access