盐胁迫作用下甲维盐·毒死蜱对小白菜生理生化效应研究  

Effects of combined emamectin benzoate-chlorpyrifos on physiological and biochemical characteristics of nonheading Chinese cabbage under salt stresses

作　　者：张凤凤[1] 魏建宏[2] 罗琳[1] 张嘉超[1] 刘玉玲[1] 唐美珍[3] 

机构地区：[1]湖南农业大学资源环境学院,长沙410128 [2]湖南农业大学生物科学技术学院,长沙410128 [3]曲阜师范大学南四湖湿地生态与环境保护重点实验室,山东曲阜273165

出　　处：《农业环境科学学报》2016年第5期850-857,共8页Journal of Agro-Environment Science

基　　金：铟提取过程污染控制与管理方案研究(201309051);国家国际科技合作专项(2013DFG91190)

摘　　要：采用实验室盆栽方法模拟小白菜田间施药,设置正交实验探究盐胁迫与复配农药甲维盐·毒死蜱的复合污染对小白菜生理生化效应的影响,包括小白菜的生长状况,叶绿素、还原性糖、可溶性蛋白和纤维素含量的变化。研究结果表明:在盐胁迫和甲维盐·毒死蜱交互作用下,小白菜的生长受到明显抑制,且盐分和甲维盐·毒死蜱浓度越高,抑制程度越大;小白菜叶片中叶绿素、还原性糖、可溶性蛋白质、纤维素的含量随土壤盐分和甲维盐·毒死蜱浓度的增加均有不同程度的变化,与对照组相比,其生理指标均有所降低。运用Duncan′s新复极差法对盐胁迫和甲维盐·毒死蜱作用进行主效应分析,结果表明农药甲维盐·毒死蜱对小白菜各项生理指标有显著影响,盐胁迫对小白菜各项生理指标有极显著影响。The impacts of salt and emamectin benzoate-chlorpyrifos mixture on physiochemical characteristics of non-heading Chinese cabbage were investigated using orthogonal experimental design and pot culture.Parameters such as chlorophyll,reducing sugar,soluble protein and cellulose of non-heading Chinese cabbage were chosen.Results showed that the physiochemical parameters were inhibited in varying degrees by salt and emamectin benzoate-chlorpyrifos mixture in a dose-effect mode.The values for these parameters decreased with increasing levels of contaminants.The main effect by using Duncan′ s new multiple range method analysis indicated that the pesticide had a significant effect while the salt had an extremely significant effect on physiochemical characteristics of non-heading Chinese cabbage.

关 键 词：盐胁迫 甲维盐·毒死蜱 小白菜 生理指标 正交试验 

分 类 号：X503.231[环境科学与工程—环境工程]