多效唑对梨干旱胁迫的保护效果  

Protective Effect of PP_(333) in Jinxiangshui Pear under Dought Stress

作　　者：王玉莲[1,2] 顾广军[3] 杨晓华[3] 张武杰[3] 程显敏[3] 

机构地区：[1]黑龙江八一农垦大学,黑龙江大庆163319 [2]黑龙江农业经济职业学院,黑龙江牡丹江157041 [3]黑龙江省农业科学院牡丹江分院,黑龙江牡丹江157041

出　　处：《北方园艺》2010年第1期55-56,共2页Northern Horticulture

基　　金：黑龙江省自然科学基金资助项目(C200631)

摘　　要：用不同浓度的多效唑(PP333)在干旱胁迫前1 d处理金香水梨幼苗,研究干旱胁迫下PP333对其保护效果。结果表明:PP333预处理有效地降低了干旱胁迫下梨叶片的MDA、CAT含量及POD活性的增加程度,并能有效延缓SOD活性的降低。表明PP333预处理可有效减轻干旱对梨引起的自由基伤害,提高梨抗旱能力,以100 mg/L处理的保护效果最好。PP333 was used to study the protective effect on Jinxiangshui pear seedling one day before drought stress. The results showed that the pre-treatment of PP333 decreased the level of MDA, CAT content and POD activity, elective retarded the decreased of SOD activity in Jinxiangshui Pear seedling under drought stress. The results showed PP333 eould increase the drought resistance of Jinxiangshui Pear seedlings, among the treatments, the protective effect of the treatment 100 mg/L PP333 was the most effective.

关 键 词：干旱胁迫 金香水梨 PP333 CAT MDA POD SOD 

分 类 号：S661.2[农业科学—果树学]