甘蔗苗期对干旱胁迫的生理响应研究  

Research on Sugarcane Seedling Physiological Response to Drought Stress

作　　者：何平[1] 程志远[1] 李穆[1] 石莹[1] 李富生[1] 

机构地区：[1]云南农业大学农学与生物技术学院,昆明650201

出　　处：《中国农学通报》2014年第31期132-135,共4页Chinese Agricultural Science Bulletin

基　　金：云南省现代农业甘蔗产业技术体系建设专项"云南甘蔗主栽品种抗逆性鉴定研究"(云财教[2014]105号);云南省重点新产品开发计划项目(农业部分)"高产高糖强宿根甘蔗新品种选育及产业化开发"(2012BB014);云南农业大学高原山地作物可持续生产系统研究省创新团队"高原山地特色作物种质创新及利用"(云科人发[2012]18号)

摘　　要：为研究云南6个甘蔗品种苗期对干旱胁迫的响应,确定各品种的抗旱性,采用盆栽试验的方法,在人工控水造成干旱胁迫的条件下,测定可溶性糖含量、游离脯氨酸含量、叶绿素含量、丙二醛含量、水分含量和质膜透性等生理指标。采用模糊隶属函数、系统聚类法对多指标进行综合分析,全面评价6个甘蔗品种的抗旱性。结果表明:‘闽糖69-421’表现出较强的抗旱性,‘新台糖22’和‘桂糖11’表现为中度抗旱性,‘粤糖86-368’、‘滇蔗01-58’、‘粤糖93-159’表现出较弱的抗旱性。The study was conducted to research six sugarcane varieties＇ response to drought stress in seedling period in Yunnan, to determine their drought resistance. The tested sugarcane varieties were planted with pots by using artificial water control to cause drought stress condition, the physiological indices such as soluble sugar, praline content, chlorophyll content, malondialdehyde content（MDA）, moisture content and plasma membrane permeability were measured. Fuzzy membership functions and the cluster analysis method for multi-index comprehensive analysis were adopted to evaluate the drought resistance of the six sugarcane varieties.The results indicated that‘Mintang69-421＇showed strong drought resistance,‘ROC22＇and‘Guitang11＇showed moderate drought resistance,‘Yuetang93- 159＇,‘Yuetang86- 368＇and‘Dianzhe01- 58＇showed weak drought resistance.

关 键 词：甘蔗 干旱胁迫 生理响应 抗旱性 综合评价 

分 类 号：S566.1[农业科学—作物学]