【摘要】 用不同辐射剂量的X射线辐射仙客来种子,研究对仙客来发芽率、发芽指数、活性指数、细胞分裂指数、染色体畸变率、幼苗生长势及叶绿素含量的影响.结果表明:低剂量辐射能够提高仙客来的发芽率、发芽指数、活性指数、细胞分裂指数、幼苗生长势、幼苗叶绿素含量,高剂量辐射则起到相应的抑制作用,在辐射剂量为12Gy开始出现染色体畸变.更多还原

【Abstract】 Cyclamen seeds were irradiated with various doses of X- ray radiation to study germination rate,germination index,activity index,mitotic index,chromosomal aberration rate,seedling growth and the of chlorophyll content of cyclamen. The results showed that low dose radiation can increase germination rate,germination index,activity index mitotic index,seedling growth potential and its chlorophyll content,while high- dosed radiation played an inhibiting effect. When radiation dose was 12Gy,chromosomal aberration began to appear.更多还原