水杨酸甲酯对香蕉苗抗寒生理特性的影响  

Effect of MeSA on Chilling Resistance of Banana Seedlings

作　　者：冯斗[1] 禤维言[1] 黄政树[1] 谭顺富[1] 

机构地区：[1]广西大学农学院,南宁530004

出　　处：《中国南方果树》2009年第6期5-9,共5页South China Fruits

基　　金：农业部"十一五"香蕉"948"项目子课题"香蕉抗寒栽培模式研究"(2006-G32);农业部专项"国家香蕉技术体系建设"(nycytx-33-14);国家"星火计划"项目"香蕉专业型科技新农村建设关键技术开发与应用"(2007EA790003)资助

摘　　要：试验用0、0.5、1.0、1.5mmol/L等4个浓度的水杨酸甲酯喷施香蕉苗,研究水杨酸甲酯对香蕉苗抗寒性能的影响。结果表明,水杨酸甲酯可以提高低温胁迫下香蕉苗叶片SOD总活性、POD活性、可溶性糖含量和叶绿素含量,降低相对电导率和超氧阴离子(O2-.)产生速率。在各个浓度处理中,以0.5mmol/L的水杨酸甲酯对提高香蕉苗抗寒性效果最好。MeSA at 4 differenteoncentrations of 0. 0,0. 511.0, 1.5 mmol/L was sprayed on banana seedlings to study its effect on chilling-resistance of the seedlings. The results showed that MeSA increased total SOD activity, POD activity, soluble sugar content and chlorophyll content but decreased the relative conductivity and the production of superoxide radical anion in leaves under the stress of low temperature. The best result for increas- ing chilling-resistance of banana seedlings was obtained when spraying MeSA at the concentration of 0. 5mmol/L.

关 键 词：香蕉苗 水杨酸甲酯 低温胁迫 生理特性 

分 类 号：S668.1[农业科学—果树学]