抗除草剂水稻品种的推广应用可解决田间杂草、杂草稻，提高杂交稻纯度等生产实践问题。本研究利用咪唑啉酮类除草剂，以70 g/hm2使用量，配制咪草烟的水剂，在水稻生长到2叶1心时进行喷雾除草，从7 403份水稻品种资源中，获得1份抗咪草烟的水稻新资源。

Application of herbicide-resistant rice varieties is beneficial for improving the production problems of rice, including the disaster of the weed, weedy rice and the confounding of the faking hybrid seed. However, few herbicide-resistant rice germplasm had been found. In this study, the authors screened 7,403 rice collections varieties by imazapic（70 g/hm2） spraying treatment at 2～3 leaves stage, and successfully obtained 1 new imazethapyr -resistance rice germplasm.