该文采用激光诱变育种方法,根据育种目标,使用CO2等不同激光的不同剂量,先后分别辐照洋葱“元谋红皮”、“西昌红皮”、黄皮洋葱资源“96203”、“西葱2号”等亲本湿种子,经20多年选育,从后代变异中选育出洋葱新品种“西葱1号”、“西葱2号”、“西葱3号”及“昌激09-2”等洋葱新品种.实践证明,激光诱变育种是洋葱新品种选育的有效方法. In this paper, laser mutagenesis breeding method was used. According to breeding objectives, different doses of CO2 and other different lasers were used to irradiate onions “Yuanmou Red”, “Xichang Red”, “Yellow Onion” After more than 20 years of breeding, the new varieties of onion “West onion 1”, “West onion 2”, “ ”Onion onions 3 “ and ”Chang excited 09-2 " and other new onions. Practice has proved that laser mutagenesis breeding is an effective method of breeding onions new varieties.