摘要
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。
The mutagenic effets of Pingyangmycin (PYM) on rice were studied by means of seed treatment with 5, 10, 15, 20 and 25μg/ml of PYM. The results showed that PYM could induce high frequency of chromosome aberrations, produce physiological damages of various degrees in terms of seed germination, seedling growth and spikelet fertility in M 1 generation, and induce high frequency of chlorophyll deficient mutation and mutation in plant height and heading date in M 2 generation. With 15μg/ml of treatment, the highest total mutation frequency, higher than that of the widely used chemical mutagen EMS, was reached.As induction of beneficial mutations was concerned, PYM was inferior to EMS in inducing early heading mutation, but superior to EMS in inducing short straw mutation.
出处
《核农学报》
CAS
CSCD
1997年第1期26-30,共5页
Journal of Nuclear Agricultural Sciences
关键词
平阳霉素
水稻
诱变效应
Pingyangmycin, rice, mutagenic effects
