这是新发展起来的一种育种方法,国外开展这一工作的国家不多。据苏联最近报导,用间歇的聚集太阳光照射植物种子、花粉和芽引起突变,已获得小麦、玉米、大豆、蕃茄等高产新类型。重复照射突变体后代,可固定并加强已产生的变异。据称著名的冬小麦高产品种“无芒一号”的这一突变体“光育”小麦已在扩大凡殖并进行试验,它比“无芒一 This is a newly developed method of breeding. Few countries carry out this work abroad. According to the recent Soviet report, plant seeds, pollen and shoots were mutated intermittently with concentrated sunlight and new high-yielding types of wheat, corn, soybeans and tomatoes were obtained. Repeated irradiation of mutant offspring can fix and enhance the variation that has occurred. It is said that the mutant “phototrophic” wheat, which is the well-known winter wheat high-yielding cultivar “Wumeng No.1,” has been expanding its genus and experimenting,