Inheritance of resistance to Fusarium wilt was analyzed by a complete diallel crossing among 6 inbred lines of winter melon.The results showed that the resistance was controlled by recessive polygenes,which fitted the additive -dominative genetic model with the additive effect as the key factor and the susceptibility being incompletely dominant.Dominant genes had a high proportion and gave a reducing effect.Heritability in narrow sense was 60.46%.There were at least three pairs of additive genes and one pai...