为提高水稻诱变育种的突变频率及效果, 本研究采用新型诱变源高能电子束(EB)辐照2种不同基因型水稻品种产生突变效应, 并与传统60Co-γ射线处理相比较, 探索了高能电子束应用于水稻诱变育种的最适辐照剂量, 分析了其M1代的生物损伤特点并统计了M2代部分可见农艺性状表型突变频率, 探讨了高能电子束处理不同基因型水稻品种的损伤效应和诱变效应。本研究为水稻的高能电子束诱变育种工作提供了参考。

In order to improve the mutation frequency and effect of rice mutation breeding. The mutation effects of two different rice genotypes irradiated by new mutagen high-energy electron beam (EB) were studied in this research, and compared with the traditional 60Co-γ ray treatment. The optimal irradiation dose of EB applied to rice mutation breeding was explored, and the biological damage characteristics of M1 Generation and M2 generation were analyzed. The frequency of phenotypic mutation of agronomic traits was studied. The damage and mutation effects of different genotypes of rice treated by high energy electron beam were studied. This study provides a reference for rice mutation breeding by high energy electron beam.