Results of the experiments conducted to induce resistance against flumorph, dimethomorph, and iprovalicarb in Phytophthora melonis.

aSM, spontaneous mutation. UV, UV-mutagenesis.bSurvival frequency, number of mutants/total number of zoospores used for mutant generation.cEC50, the effective concentration for causing 50% inhibition of mycelial growth inhibition of P. melonis.dResistance factor = EC50 of resistant isolates at the 10th transfer/EC50 of its parent.