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Selection for Aggressiveness in Erysiphe graminis f. sp. Hordei Towards Partial Resistance in Barley
Author(s) -
Newton A. C.
Publication year - 1992
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1992.tb01294.x
Subject(s) - powdery mildew , biology , erysiphe graminis , adaptation (eye) , host (biology) , selection (genetic algorithm) , inoculation , mildew , cultivar , resistance (ecology) , hordeum vulgare , botany , poaceae , horticulture , agronomy , genetics , neuroscience , artificial intelligence , computer science
Isolates of powdery mildew were subjected to recurrent selection on partially resistant barley cultivars for 76 inoculation cycles over three years. Previous intermediate tests on up to 32 cycles for adaptation to overcome the host resistance revealed a trend towards adaptation to the cv. 7204 recurrent host in infection frequency data but not towards cv. Golden Promise or 9319, Subsequent cycles demonstrated adaptation to these latter hosts also.