Chinese cabbage male sterile line selection and its inheritance law

摘要

Genetically male sterile, dual purpose line 8901A was used as the female parent in test crosses with inbred male parent lines. The hybrids were selfed and sib-crossed. The offspring were analysed for fertility segregation. A male sterile line was selected from a cross between 8901A and distant hybrid 735-8-1-1. The male sterile plants had 100% sterility, normal nectar glands and heading, and high combining ability. Segregation analysis showed that male sterility was controlled by the interaction of2 pairs of genes with dominance effects.