辽宁省是我国著名玉米良种繁育基地,近几年提出的割除父本技术措施,对提高种子纯度发挥了重要作用。本文就不同生育期割除父本对母本产量的影响进行了研究。证明在母本授粉结束后割除父本,显著提高母本产量,为深入推广割父本技术措施提供依据。 Liaoning Province is China’s famous breeding base for breeding of maize. In recent years, cutting off male parent technical measures has played an important role in improving seed purity. In this paper, the effect of cutting off the male parent on the female parent’s yield at different growth stages was studied. It is proved that the male parent could be cut off after pollination of female parent and the yield of female parent could be significantly increased, providing the basis for further popularizing the parental measures.