^(60)Co-γ射线对孔雀草种子的发芽率及幼苗生长的影响  

Effect of ^(60)Co-γ Ray Irradiation on Seed Germination Rate and Seeding Growth of Tagetes patura

作　　者：周振春[1] 强继业[1] 朱程青[1] 

机构地区：[1]丽水学院物理系,浙江丽水323000

出　　处：《安徽农业科学》2006年第18期4691-4692,4722,共3页Journal of Anhui Agricultural Sciences

摘　　要：用不同剂量60Co-γ射线辐射孔雀草种子,研究射线对种子发芽率和幼苗生长的影响。结果表明:发芽率和辐射剂量呈负相关;芽长和辐射剂量呈正相关,而根长和辐射剂量呈微相关。The seeds of Tagetes patura were irradiated with ^60Co-γ ray of the different dosages and the seed germination rote and seeding growth were observed. The result showed the relation between the germination and the radiant dosage were negative correlation; the relation between the length of bud and the radiant dosage were positive correlation and the relation between the length of root and the radiant dosage were tiny negative correlation. Irradiation could improve the growth of Tagetes patura but it could restrict the rote of seed germination. At the 20 Gy, it was better to improve the germination rate and seeding growth, but it was restrained at the 50 Gy.

关 键 词：孔雀草 辐射 发芽率 芽长 根长 

分 类 号：S682.11[农业科学—观赏园艺]