裸燕麦种子萌发对模拟干旱胁迫的响应及其耐旱性综合评价  

Evaluation of Drought Resistant and Response of Naked Oats Seed Germination under Drought Stress

作　　者：牛瑞明[1] 王燕[1] 吴桂丽[1] 高明照[1] 

机构地区：[1]河北北方学院农林科技学院,河北张家口075000

出　　处：《麦类作物学报》2011年第4期753-756,共4页Journal of Triticeae Crops

基　　金：国家"十一五"科技支撑计划项目(2006BAD02B05-9);河北省重点学科建设项目

摘　　要：为了筛选耐旱性较好的裸燕麦新品种,以河北坝上地区新育成和冀西北常用的共15个裸燕麦材料为试材,以不同渗透势的PEG-6000溶液模拟水分胁迫条件,通过测定萌发抗旱指数、活力抗旱指数、相对发芽率和相对发芽势4个指标,采用模糊隶属法用上述4个指标对15个参试材料的耐旱性进行了综合评价。结果表明,坝莜6号最耐旱,花早2号最不耐旱,耐旱隶属函数总平均值分别为0.719和0.141。Naked oat（Avena nuda L.） with mainly upland cultivation has high nutritional value,edible value and medical value.In order to select drought resistant varieties to adapt to cultivation on dry land.In this study,the materials are 15 naked oat materials which are newly bred in Bashang area and commonly used in northwest Hebei Province.The sprout index of drought resisting,vigor index of drought resisting,and relative germination rate,relative germination potential of 15 naked oats seeds tested under different osmotic potentials（PEG-6000） to evaluate their drought resistance using the fussy subordinate function.The results indicated that dam Naked Oat No.6 and Huazao No.2 had relatively the highest and the lowest drought resistance.The average subordinate values of them resistance to drought stress were relatively 0.719 and 0.141.

关 键 词：裸燕麦 水分胁迫 耐旱性 模糊隶属法 

分 类 号：S512.6[农业科学—作物学] S311