不同农药及培养基质对木耳菜富硒能力的影响探究  

Influence of Different Pesticides and Culture Substrates on the Selenium Enriching Capacity of Malabar Spinach

作　　者：许为义[1] 曹思宇 陈菡雯 孙晨 刘莉 伍鑫 王玉明 XU Wei-yi;CAO Si-yu;CHEN Han-wen;SUN Chen;LIU Li;WU Xin;WANG Yu-ming(College of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《辽宁大学学报（自然科学版）》2021年第3期263-270,共8页Journal of Liaoning University：Natural Sciences Edition

基　　金：国家重点研究与发展项目(2019YFC0408504);大学生国家创新创业培训项目(201910359093)。

摘　　要：硒元素是人体生长发育的必需微量元素.在我国大力发展富硒农产品以提升人体硒摄入量的背景下,本文以一种药食同源的蔬菜——木耳菜为例,试探究不同农药(草甘膦与氯氰菊酯)浓度以及不同基质(土壤基质与火山岩基质)对木耳菜富硒能力的影响.结果表明:在相同实验条件下,火山岩相对土壤基质表现出更优的促进木耳菜富硒作用;土壤基质中草甘膦与氯氰菊酯对木耳菜富硒的促进均随生长时间和施加浓度的增加表现为先增加再减弱,且浓度过高时表现为抑制.其中,草甘膦的促进作用更优,其施加的最适浓度为0.002 9 g/培养基,于出芽后34~62 d表现出显著促进作用,最高富硒量为1.007 mg/(kg·d^(-1)).以上结论可为富硒木耳菜的农业生产提供借鉴.Selenium( Se) element is the essential trace element that promotes the growth and development of human body. Under the background of energetically developing Se-enriching agricultural products to improve the body Se intake,this paper treated M alabar spinach,a kind of medicinal and edible vegetable,to explore the effects of different pesticide( glyphosate and cypermethrin) concentrations and different substrates( soil substrate and volcanic rock substrate) on the Se-enriching capacity of M alabar spinach. The results suggested that,under the same experimental conditions,volcanic rock exhibited superior effect on promoting the Se-enriching capacity of M alabar spinach over soil substrate. In the soil substrate,the effects of glyphosate and cypermethrin on promoting the Se-enriching capacity of M alabar spinach show ed a first increase and then decrease trend w ith the increases in grow th time and applied concentration,and an overhigh concentration show ed suppression. Typically,glyphosate show ed better promotion effect,and the optimal concentration w as 0. 002 9 g/culture medium,and significant promotion effect w as achieved at 34-62 days after budding,w ith the highest Se-enriching amount of 1. 007 mg/( kg·d^(-1)). The above conclusion can provide reference for the agricultural production of Se-enriching M alabar spinach.

关 键 词：木耳菜 富硒能力 草甘膦氯氰 菊酯 火山岩 

分 类 号：X592[环境科学与工程—环境工程]