毒死蜱对番木瓜生理生化及植株生长的影响  

Effects of Chlorpyrifos on Physio-biochemical Characteristics and Plant Growth of Papaya

作　　者：谢志南[1] 林丽仙[1] 钟赞华[1] 赖瑞云[1] 苏明华[1] 

机构地区：[1]福建省亚热带植物研究所福建省亚热带植物生理生化公共实验室,福建厦门361006

出　　处：《热带作物学报》2009年第4期479-484,共6页Chinese Journal of Tropical Crops

基　　金：福建省科技计划项目(2005N019)资助

摘　　要：以番木瓜幼龄植株为试材,通过喷施不同浓度毒死蜱,探讨毒死蜱对番木瓜生理生化及植株生长的影响。结果表明:喷施毒死蜱后植株过氧化物酶活性急增,过氧化氢酶活性明显降低,叶片叶绿素、可溶性糖、可溶性蛋白含量明显下降,根系活力显著降低;叶片出现斑驳黄化、皱缩症状,提早脱落;植株根、茎、叶生长量明显减少。番木瓜幼龄植株对毒死蜱敏感,喷施毒死蜱易导致植株药害发生。Young papaya plants were sprayed with chlorpyrifos at different concentrations to observe the physiolog- ical and biochemical changes and growth of papaya. The results showed that after spraying chlorpyrifos, the activity of peroxidase (POD) in the young papaya plants increased remarkably, while the activity of catalase (CAT) , the contents of chlorophyll, soluble sugar and soluble protein in leaves, and the activity of root system decreased significantly. Meanwhile, the leaves treated were yellow, mottled,...

关 键 词：毒死蜱 番木瓜 生理生化特性 植株生长 影响 

分 类 号：S66[农业科学—果树学]