^(60)Co-γ辐射对NaCl胁迫下二月兰种子萌发的影响  

Effects of ^(60)Co-γ Radiation on Seeds Germination of Orychophragmus violaeeus under NaCl Stress

作　　者：董亚茹[1] 赵东晓[1] 陈传杰[1] 孙景诗[1] 杜建勋[1] DONG Ya-ru;ZHAO Dong-xiao;CHEN Chuan-jie;SUN Jing-shi;DU Jian-xun(Sericulture Research Institute of Shandong Province,Yantai 264002,Shandong,Chin)

机构地区：[1]山东省蚕业研究所,山东烟台264002

出　　处：《湖北农业科学》2018年第15期71-73,共3页Hubei Agricultural Sciences

基　　金：山东省农业科学院农业科技创新工程"海水农业关键技术"(CXGC2016B10);山东省农业重大应用技术创新项目(2017)

摘　　要：以二月兰(Orychophragmus violaeeus)种子为材料,采用室内培养皿发芽方法,分别统计其在清水和0.5%NaCl中的萌发指标并测量幼苗生长指标,以研究^(60)Co-γ射线对二月兰种子萌发及早期幼苗生长的影响。结果表明,在0~300 Gy剂量范围内,^(60)Co-γ辐射提高了二月兰种子的发芽率,同时降低了种子的发芽势。在水处理条件下,^(60)Co-γ辐射对二月兰幼苗株高、根长、鲜重都有不同程度的促进作用。在0.5%NaCl处理条件下,^(60)Co-γ辐射对二月兰幼苗的株高和鲜重产生了一定的促进作用,对根长的生长则是低浓度促进高浓度抑制。The effects of^（60）Co-γ ray on the seed germination and early seedling growth of Orychophragmus violaeeus were studied using the method of indoor petri dish germination method,and the germination indexes in water and 0.5% NaCl were measured. The results showed that^（60）Co-γ radiation increased the germination rate of Orychophragmus violaeeus seeds,and decreased the germination potential of seeds in the dose range of 0~300 Gy. Under the condition of water treatment,^（60）Co-γ radiation had different effects on the plant height,root length and fresh weight of Orychophragmus violaeeus seedlings. Under the condition of 0.5% NaCl treatment,^（60）Co-γ radiation promoted the plant height and fresh weight of Orychophragmus violaeeus seedlings,but the growth of root length was promoted at low concentration^（60）Co-γ radiation and inhibted at high concentration^（60）Co-γ radiation.

关 键 词：二月兰(Orychophragmus violaeeus) 60Co-γ射线 种子萌发 生长指标 

分 类 号：S681.9[农业科学—观赏园艺]