除草剂对蚕豆根尖微核细胞率的影响

摘要

To explore the impact of herbicides on crops, three herbicides, Paraquat, Butachlor, 2, 4-D butylate were chosen, and the micronucleus test was used to test the toxicity of root tip cells of Viciafaba induced by herbicide. The results showed that, three herbicides all induced the micronuclei effects on root tip cells of Viciafaba, and showed dose-effect relationship. The toxic of Butachlor was higher than 2, 4-D butylate and Paraquat.%为探讨除草剂对经济作物的影响,选择百草枯、丁草胺、2,4-D丁酯这3种除草剂,采用微核方法测定除草剂对蚕豆根尖细胞的毒性.结果表明,3种除草剂均不同程度引起蚕豆根尖微核细胞率的增高,且呈现明显的剂量效应关系；3种除草剂中,丁草胺毒性最高,2,4-D丁酯次之,百草枯最低.