甲维盐对几种不同作物叶片叶绿素含量的影响

摘要

对大田栽培作物棉花、白菜和萝卜喷施不同浓度杀虫剂甲维盐,24 h后测定三种作物叶片中的叶绿素和类胡萝卜素的含量。结果表明：甲维盐均能导致三种供试作物白菜、棉花、萝卜叶片中叶绿素a、叶绿素b、叶绿素总量和类胡萝卜素含量下降,叶绿素a/b值上升。%In the field, the leaves of cotton, Chinese cabbage and radish were sprayed with emamectin benzoate at different concentrations. The contents of chlorophyll and carotenoid were tested after 24 hours of the spraying. The results showed that it reducted in the contents of chlorophyll A, chlorophyll B, the total chlorophyll and carotenoid of the three crop leaves treated with insecticides, and increased in the ratios of Chlorophyll A and Chlorophyll B of the three crop leaves treated.