Cu^(2+)对小麦种子萌发和幼苗生长的影响  

Effects of Cu^(2+) on Seed Germination and Seedling Growth of Wheat

作　　者：邵云[1] 姜丽娜[1] 李春喜[1] 李向力[1] 鲁旭阳[1] 周其源[1] 

机构地区：[1]河南师范大学生命科学学院,河南新乡453007

出　　处：《河南农业科学》2005年第1期13-16,共4页Journal of Henan Agricultural Sciences

基　　金：国家"十五"重大科技攻关项目 (2 0 0 1BA5 0 7A0 2 ) ;河南省自然科学基金项目 (0 3110 30 4 0 0 )

摘　　要：研究不同浓度Cu2 +对小麦种子萌发和幼苗生长的影响。结果表明 ,在 0～ 10 0mg/LCu2 +处理范围内 ,Cu2 +浓度越大 ,对小麦种子的发芽及幼苗根和芽生长的抑制作用越大 ,且Cu2 +对根的抑制作用大于对芽的抑制 ;同时 ,随着Cu2 +浓度的增大 ,小麦种子α -淀粉酶活性降低 ,幼苗叶片中叶绿素含量降低 ,游离脯氨酸含量和丙二醛含量增高。The studies with different concn.of Cu 2+ showed that within treatments of Cu 2+ 0-100 mg/L,the concentration of Cu 2+ was bigger, the inhibition on seed germination and seedling growth of wheat was stronger.Cu 2+ exhibited more inhibition on roots than on shoots. Meanwhile, with the increase of Cu 2+ concentration in this range, the activity of α-amylase of wheat seeds was reduced, and the content of chlorophyll of wheat leaves was reduced too, but the content of free proline and malonaldehyde were increased.

关 键 词：小麦 CU^2+ 萌发 幼苗生长 

分 类 号：S512[农业科学—作物学]