激光—核辐射诱变小麦茎杆性状的遗传变异研究  

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

作　　者：李成佐[1] 唐淑明 杨雪梅[1] 

机构地区：[1]西昌学院,四川西昌615013 [2]凉山农校,四川西昌615000

出　　处：《西昌农业高等专科学校学报》2004年第2期42-44,58,共4页

摘　　要：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。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

关 键 词：激光-核辐射 小麦 遗传变异 茎杆 激光诱变育种 

分 类 号：S335.29[农业科学—作物遗传育种]