激光—核辐射诱变小麦茎杆性状的遗传变异研究

本试验采用N_2激光和He-Ne激光辐照“绵阳21号”等四个小麦材料的干种子,采用随机区组设计,重复三次,利用生物统计和数量遗传学的方法,对L_1和L_2两代的株高、穗颈长等11个茎杆性状的遗传变异进行研究。结果表明:辐射材料不同,诱变后代的变异差异明显;激光种类不同,后代变异差异不大;株高、穗颈长的遗传力较高,早代单株选择的效果较好。

Genetic Variation Study of Laser-nuclear Radiation's influence on Wheat Stalk Traits

In the experiment, the authors used N2 laser and He-Ne laser to radiate four varieties of dry wheat seeds such as "Mianyang 21", etc. A random plotting was used with three duplications. A method of biological statistics and quantity inherit was used to study the genetic variation of 11 stalk traits of plant height and length of stalk of L_1 and L_2 generations. The results indicate that different radiation material has different influence on the next generation; different kinds of laser has litde influence on the next generation; higher plants and longer stalks have a stronger heritage, earlier generation single plant has a better effect