Cd^(2+)对高粱幼苗生理指标的影响  

Effect of Cd^(2+) on the Physiological Indices of Sorghum Seedlings

作　　者：姜虎生[1] 胡春霞[2] 安宁[1] 

机构地区：[1]辽宁石油化工大学环境与生物工程学院,辽宁抚顺113001 [2]抚顺师范高等专科学校,辽宁抚顺113006

出　　处：《吉林农业科学》2010年第4期6-8,共3页Journal of　Jilin Agricultural Sciences

摘　　要：通过温室盆栽试验,研究了不同浓度Cd2+对高粱幼苗生理指标的影响。研究结果表明:在低浓度的Cd2+离子作用下,叶绿素含量、根系活力均有上升趋势;在高浓度的Cd2+作用下,高粱的各项生理指标都有显著的变化,叶绿素和根系活力呈现下降趋势,且浓度越大,下降越多,而脯氨酸含量和细胞脂膜透性呈现上升趋势。The effect of different concentrations of Cd^2＋ on the physiological indices of sorghum seedlings were studied using pot-cultured sorghum in the greenhouse.The results showed that under low concentrations of Cd^2＋,the chlorophyll content and root activity of sorghum seedlings increased.Under high concentrations of Cd^2＋,various physiological indices of sorghum changed significantly.Chlorophyll and root activity decreased,and the higher the concentration of Cd^2＋,the more they decreased.The proline content and cell lipid membrane permeability increased.

关 键 词：镉离子 高粱 生理指标 

分 类 号：S514[农业科学—作物学]