Effects of Induced Concentration and Time of EMS on Seed Germination of Common Buckwheat

EMS诱变浓度和诱变时间对甜荞种子发芽的影响（英文）

[Objective] This study aimed to investigate the effects of induced concen- tration and time of EMS on seed germination of common buckwheat. [Method] The seeds of Jinqiaomai No.3, a common buckwheat cultivar, were used as the test material, and their germination was induced by different concentrations of EMS un- der different induced times. The germination rate, germination vigor, relative germi- nation rate and relative germination vigor of Jinqiaomai No.3 were measured. [Re- sult] With increased induced concentration and time of EMS, the germination rate, germination vigor, relative germination rate and relative germination vigor of Jinqiao- mai No.3 were all trended to be decreased. For Jinqiaomai No.3, the optima in- duced concentration and time of EMS was 1.0% and 4 h, respectively, and the lethal concentration was 1.7%. [Conclusion] The induced concentration and time of EMS all showed significant effects on seed germination of Jinqiaomai No.3.

[目的]检测EMS诱变浓度和诱变时间对甜荞种子发芽的影响。[方法]以"晋荞麦3号"为材料,用EMS诱变剂(设置不同诱变浓度和诱变时间)对甜荞种子进行诱变,测定其发芽率、发芽势、相对发芽率和相对发芽势。[结果]随着EMS诱变浓度的增加和诱变时间的延长,甜荞种子的发芽率、发芽势、相对发芽率和相对发芽势都呈下降趋势,EMS诱变甜荞的最适浓度为1.0%,处理时间为4 h,致死浓度为1.7%。[结论]EMS诱变浓度和诱变时间对甜荞种子发芽均有显著影响。