多效唑对金香水梨抗旱相关生理指标的影响  

Effect of PP_(333) on the Relative Physiological Indexes of Drought Resistance in ‘Jinxiangshui' Pear

作　　者：程显敏 顾广军 杨晓华 张武杰 刘延杰 

机构地区：[1]黑龙江省农科院牡丹江分院,黑龙江牡丹江157041

出　　处：《中国林副特产》2010年第3期14-15,共2页Forest By-product and Speciality in China

基　　金：黑龙江省自然基金项目(200631)

摘　　要：用不同浓度的多效唑(PP333)在干旱胁迫前1d处理,研究干旱胁迫下PP333对金香水梨幼苗的保护效果。结果表明,PP333预处理有效地降低了干旱胁迫下梨叶片的MDA含量及POD活性的增加程度,并能有效延缓SOD和CAT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100mg/L处理的保护效果最好。The different concentrations of PP333 were used to study the protective effect on Jinxiangshui Pear seedling under drought stress. The results showed that the pre-treatment of PP333 decreased the level of MDA content and POD activity , retarded the decrease of CAT and SOD activity in the leaves of Jinxiangshui Pear seadling under drought stress. The pre-treatment of PP333 could increase the drought resistance of Jinxiangshui Pear seedlings. The treatment of 100mg/L PP333 was best protective effect.

关 键 词：干旱胁迫 金香水梨 多效唑 过氧化氢酶 过氧化物酶 超氧化物歧化酶 

分 类 号：S66[农业科学—果树学]