The genetic analysis of resistance to fusarium crown and root rot of tomato |
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Authors: | D J VAKALOUNAKIS |
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Institution: | Plant Protection Institute, 711 10 Heraklio, Crete, Greece |
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Abstract: | The tomato line IRB-301-31, resistant to fusarium crown and root rot ( Fusarium oxysporum f.sp. radicis-lycopersici ) was crossed with two susceptible cultivars, Motelle and Earlypak No. 7. When F1, F2 and backcross progenies were inoculated at the one-leaf stage with a suspension of spores of the pathogen, all could be classified as either resistant (healthy) or susceptible (dead). The ratios of resistant to susceptible plants indicated that resistance was conferred by a single dominant gene, designated Fr1. |
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