将水稻除草剂敏感 (致死 )基因转移到杂交水稻的父本中去 ,培育能够混播制种可以进行机械化收割的杂交水稻新组合是我国杂交水稻研究的新热点。笔者将 6a 10季的研究结果进行总结 ,得出了父本致死致伤的适宜用量 ,选出了强优势的新组合并提出了进一步研究的设想 It is a new hotspot in hybrid rice research to transfer the sensitive (lethal) genes of rice herbicides to the male parent of hybrid rice and to cultivate a new hybrid rice combination that can be mixed sowing for mechanical harvesting. The author summarizes the results of the study in the past 10 seasons and concludes with the appropriate dosage of fatal wounds caused by the male parent and selects the new combination with strong superiority and puts forward some ideas for further research