砷对黄瓜和萝卜种子萌发及其幼苗生长的影响  

Effects of As on Seed Germination and Seedling Growth of Cucumber and Radish

作　　者：房志浩 臧淑艳[1] 马原[1] 于波[1] 

机构地区：[1]沈阳化工大学应用化学学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2017年第2期138-142,共5页Journal of Shenyang University of Chemical Technology

基　　金：国家自然科学基金项目(41373127);沈阳市科技计划项目(F16-205-1-12)

摘　　要：通过水培实验研究水中的砷对黄瓜种子和萝卜种子发芽及幼苗生长的影响.实验结果说明:水中砷的浓度较低时对黄瓜种子的发芽率、发芽势、发芽指数和幼苗根长具有一定的促进生长作用;水中砷的浓度较高时对黄瓜种子的发芽和幼苗的生长有较显著的抑制作用,且随着砷浓度的增强,对黄瓜种子的抑制作用增强.砷污染对萝卜的胁迫作用比较明显,浓度较低时就能够影响萝卜种子的萌发和幼苗的生长.A hydroponic experiment was carried to study the effects of arsenic in the water on the germination and seedling growth of radish seeds and cucumber seeds.The results showed that low concentration of As has a certain role in promoting cucumber seed germination rate,germination potential,germination index and seedling root length.High concentration of As significantly inhibited cucumber seed germination and seedling growth and with the enhancement of As stress,the inhibition increased.As pollution has obvious effects on radish and the presence of As can influence the germination and seedling growth of radish.

关 键 词：砷 黄瓜 萝卜 种子萌发 幼苗生长 

分 类 号：X523[环境科学与工程—环境工程]