Abstract

Establishing that the obtained results on inheritance of wilt resistance of the hybrids of first generation to the studied virulant isolates 28,30, 32, 36, 40 and 44 of the fungus V.dahliae show that; -phenotypic degree of performance wiht parental forms and hybrids F1 depends upon genotype nature of their resistance to monosporous isolates of the fungus V.dahliae with inculation by parasite of the plant-host and their reaction on performance of external phenotypic symtoms of the disease. The highest pheynotypic wilt resistance posses the varieties Omad, C-5621 and lines L-1708, and among hybrids the hybrid combinations L-155x C-5621 and L-1708 x C-5621; - hybrid combinations L-155 x C-5621 and L-155 x L- 44 have the combinational ability on wilt resistance to the studied isolates, than other hybrid combinations with the participation of material forms Omad, C-8284.