模拟酸雨下稀土元素铈对糯玉米幼苗生长的影响  

EFFECTS OF THE RARE EARTH ELEMENT Ce ON THE GROWTH OF WAXY CORN SEEDLING UNDER SIMULATED ACID RAIN

作　　者：陆晓民[1] 王兵[1] 刘红[1] 

机构地区：[1]安徽科技学院生命科学学院,安徽凤阳233100

出　　处：《核农学报》2010年第1期114-117,159,共5页Journal of Nuclear Agricultural Sciences

基　　金：安徽科技学院稳定人才项目(ZRC200554)

摘　　要：模拟酸雨下采用不同浓度的硫酸铈对糯玉米进行处理,测定其对幼苗生长的影响。结果表明：在模拟酸雨下,0.8~100mg/L的硫酸铈可增加幼苗的干重、促进根系生长、提高幼苗的根系活力及叶绿素含量,并能抑制丙二醛增生和降低细胞膜透性,增强了糯玉米对酸雨逆境的抵抗能力。以20mg/L的硫酸铈处理效果最为理想。Effects of different concentrations of Ce（SO_4）_2 on the seedling growth of waxy corn were studied under simulated acid rain.The results showed that,compared with the corresponding controls,0.8～100mg/L Ce（SO_4）_（2）treatments could raise plant dry weight,increase chlorophyll content,enhance root activity,and promote root growth,but could inhibit MDA content and reduce cell permeability under simulated acid rain.The results indicated that appropriate concentration of Ce（SO_4）_（2）treatment could enhance the resistance of waxy corn to acid rain stress,and （20mg/L） Ce（SO_4）_（2）treatment was the optimal among all the treatments.

关 键 词：模拟酸雨 硫酸铈 糯玉米 幼苗 生长指标 生理生态指标 

分 类 号：S513[农业科学—作物学]