汞胁迫对苜蓿生理生化特性的影响  

Effect of Hydrargyrum Stress on Physiological Indexes of Alfalfa

作　　者：姜义宝[1] 黄宏波 

机构地区：[1]河南农业大学牧医工程学院,郑州450002 [2]哈尔滨制药总厂

出　　处：《黑龙江八一农垦大学学报》2008年第5期29-31,共3页journal of heilongjiang bayi agricultural university

基　　金：河南省科技厅重大科技攻关项目(0422010300)

摘　　要：苜蓿采用盆栽方法,用不同浓度的汞进行土壤处理,对现蕾期的苜蓿叶片生理变化进行分析。结果表明,在汞胁迫时,随着浓度的增加,苜蓿叶片电导率和丙二醛含量呈明显升高,叶绿素含量降低,POD活性呈现先增高后降低的变化,说明汞浓度越大对苜蓿的影响越强。Alfalfa was planted in pot and added different content of hydrargyrum to soil, physiological indexes of alfalfa leaf in bud was analyzed. Results showed that： with the increasing concentration of hydrargyrum, hydrargyrum stress could increase conductance and the content of malondialdehyde （MDA）, the content of chlorophyll decreased and POD enzyme activity were enhanced at first and followed decreased. These results indicated that the higher concentration of hydrargyrum had the stronger effect on alfalfa.

关 键 词：汞 胁迫 苜蓿 

分 类 号：S551.7[农业科学—作物学] X503.23[环境科学与工程—环境工程]