利用电离辐射诱发遗传物质发生突变,创造变异,选育新品种,取得了瞩目的成绩。回顾其发展过程,由X射线诱发染色体畸变的发现,到r射线、中子等高能射线成功应用于基因突变的诱发;由物理因素的单独应用,到和化学诱变剂的综合应用;由稀少的偶然的突变现象,到有利突变频率成百倍成千倍的不断提高,由少数人在实验室条件下的努力,到在世界范围内的广泛协作研究和深入开展;由仅有实践内容的活动,到有基础理论作指导的逐渐完 The use of ionizing radiation induced genetic material mutation, create variation, breeding new varieties, made remarkable achievements. Reviewing the development process, the discovery of chromosomal aberrations induced by X-rays, the successful application of high-energy rays such as r-rays and neutrons to the induction of gene mutations; the combination of physical factors with chemical mutagens; the combination of sparse The occasional mutation phenomenon, which is a hundredfold multiples of the favorable mutation frequency, continues to rise, with the efforts of the minority in laboratory conditions, to a wide range of collaborative research and further development in the world; from the practice-only activities , To the basic theory as a guide to the gradual end