据国内外文献报道,照射活体植株可提高突变率。为了探索小麦生长发育时期的辐射敏感性,找出适宜的照射时期,我们用~(60)Coγ射线对小麦主要生育期进行了活体植株照射和比较观察,并利用染色体畸变和微核测定,分析了辐射效应在细胞水平和植株形态上的变化,以及它们之间的相互关系,试图从中寻求活体植株照射的有效时期及其规律,为辐射育种提供依据。 According to domestic and foreign literature, irradiation of live plants can increase the mutation rate. In order to explore the radiation sensitivity during the growth and development of wheat and to find out the suitable irradiation period, we used 60Coγ ray to irradiate and compare the life of wheat in the main growth period. Chromosome aberration and micronucleus test The changes of radiation effects at the cell level and plant morphology, as well as their interrelationship, are attempted to seek the effective period and rules of living plant irradiation and provide the basis for radiation breeding.