干旱胁迫下DA-6浸种对大豆苗期叶片保护酶活性的影响  

Effect of soaking the seeds in DA-6 on protective enzyme activities in leaves of soybean seedling under drought stress

作　　者：施晓明[1] 李淑芹[1] 许景钢[1] 佟玉欣[1] 

机构地区：[1]东北农业大学资源与环境学院,哈尔滨150030

出　　处：《东北农业大学学报》2009年第9期48-51,共4页Journal of Northeast Agricultural University

摘　　要：以大豆品种东农49为试材,研究了干旱胁迫下不同浓度植物生长调节剂DA-6浸种对大豆苗期叶片保护酶活性的影响。结果表明,在干旱胁迫下,DA-6浸种降低了大豆苗期叶片中的丙二醛(MDA)含量,提高了超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)活性。表明DA-6浸种可提高大豆苗期叶片的抗逆性。其中,160～320mg·L-1的DA-6浸种处理浓度效果最好。The soybean variety Dongnong49 was used to study the effect of different concentrations of plant growth regulator DA-6 on protective enzyme activities in leaves of soybean seedlings under drought stress. The results showed that under drought stress, soaking the seeds in DA-6 reduced MDA content, and improved SOD, POD and CAT activities in soybean leaves. DA-6 could increase the resistance of soybean seedling leaves. Soaking seeds in DA-6 at the concentration 160-320 mg-L^-1 had the most distinctive effect.

关 键 词：大豆 干旱 DA-6 保护酶活性 

分 类 号：S143.8[农业科学—肥料学] S565.1[农业科学—农业基础科学]