本试验用０、５、１０、１５、２０、和２５μｇ／ｍｌ的平阳霉素处理水稻种子。结果表明，平阳霉素在Ｍ１能引起较高频率的染色体畸变，并对种子发芽、幼苗生长、植株结实等产生不同程度的损伤效应；在Ｍ２能诱发频率较高的叶绿素、株高与抽穗期突变，三者的总突变频率以浓度为１５μｇ／ｍｌ的最高。就诱发有益突变而言，平阳霉素诱导早熟的效果不如ＥＭＳ，但诱导矮秆突变的效果则优于ＥＭＳ。 In this experiment rice seeds were treated with bleomycin at 0, 5, 10, 15, 20, and 25 μg / ml. The results showed that pingyangmycin could cause higher frequency of chromosomal aberration in M1 and different degrees of damage effect on seed germination, seedling growth, plant seed setting, etc. In the condition of M2 could induce higher chlorophyll, plant height and heading date Mutation, the total mutation frequency of the three in the highest concentration of 15μg / ml. In terms of inducing beneficial mutations, the effect of pingyangmycin on inducing precociousness was not as good as that of EMS, but the effect of inducing dwarf mutation was better than that of EMS.