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采用杂交、兄妹交和自交等育种方法，育成无蜡粉的显性核不育纯合两型系。利用该两型系进行全不育系制种，无蜡粉可作为苗期育性的指示性状，能有效地区别因纯合两型系内可育株迟拔或漏拔而产生的杂株，从而提高全不育系和杂交种的纯度。
Breeding methods such as crossbreeding, sibling cross and selfing were used to breed two lines of dominant genic male sterility without wax. The use of the two types of CMS lines, wax-free seedlings can be used as an indicator of fertility, can be effectively distinguished by homozygous two-type fertile plants in late or missed drafts resulting strains , Thereby increasing the purity of all-sterile lines and hybrids.