干旱胁迫对甘蔗保护酶活性等生理指标的影响  

Effects of Drought Stress on Physiological Parameter of Sugarcane

作　　者：夏红明[1] 赵培方[1] 刘家勇[1] 张清[2] 吴才文[1] 

机构地区：[1]云南省农业科学院甘蔗研究所,云南开远661600 [2]云南省红河学院,云南蒙自661100

出　　处：《西南农业学报》2013年第5期1824-1828,共5页Southwest China Journal of Agricultural Sciences

基　　金：现代农业产业技术体系建设专项资金(CARS-20-1-1);云南省现代甘蔗产业技术体系;云南省重点新产品开发计划项目(2010BB011)

摘　　要：以6个甘蔗品种为材料,研究在人工干旱胁迫下对甘蔗保护酶SOD和POD活性、Pro及Chl含量等生理指标的影响,比较不同品种间的抗旱性差异。试验结果表明,干旱胁迫下,SOD活性变化分为3种类型,POD活性变化有4种类型;Chl和Pro含量变化在干旱胁迫下只有一种类型,Chl呈下降的规律,而Pro呈先增加后降低的规律;Chl与Pro呈显著正相关,与株高损失率呈显著负相关;株高损失率与其它5个生理生化指标呈负相关;云蔗04-241和桂糖11抗旱性强于其它4个品种。Effects of drought stress on physiological parameters SOD,POD,content of proline and chlorophyll in sugarcane leaf of six varieties were studied so as to understand the difference in drought resistance among these varieties.The results indicated that,firstly,under water stress conditions,activity of SOD showed thiee types,and activity of POD showed four types ; secondly,the content of proline and chlorophyll showed one type,the content of Pro first increased and then decreased,but content of Chl always decreases; thirdly,the relationship between Chl and Pro content was significantly positive correlation,but the relationship between Chl and Plant height loss rate was significantly negative correlation.The relationships between Chl and the other five physiological parameters were negative correlation; fourthly,the drought resistances of YZ04-241 and GT11 were stronger than the other four varieties.

关 键 词：干旱胁迫 甘蔗 生理指标 抗旱性 

分 类 号：S566.1[农业科学—作物学]