Study on the Correlation Between Leaf Area and Drought Resistance in Different Alfalfa Varieties  

不同苜蓿品种叶面积与抗旱性的关联性研究(英文)

作　　者：张怀山[1] 代立兰 乔国华[1] 王春梅[1] 杨晓[1] 

机构地区：[1]中国农业科学院兰州畜牧与兽药研究所,甘肃兰州730050 [2]甘肃省兰州市农业科技研究推广中心,甘肃兰州730000

出　　处：《Agricultural Science & Technology》2011年第4期559-561,566,共4页农业科学与技术（英文版）

基　　金：Supported by National Nonprofit Institute Research Grant(BRF090202)~~

摘　　要：[Objective] This study was to reveal the correlation between leaf area and drought resistance in different varieties of alfalfa.[Method] Using various alfalfa varieties as experimental materials,the drought resistance of leaves of drought-stressed alfalfa plants was assessed by measuring the content of free proline for analyzing its correlation with leaf area.[Result] Under drought condition,the drought resistance of alfalfa is directly related to leaf area in a positive correlation.[Conclusion] Leaf area could be used as an institutional assistant index to reflect the resistance of different alfalfa varieties.[目的]研究不同叶面积苜蓿品种的抗旱性及其二者的关系。[方法]通过紫花苜蓿在干旱条件下不同品种叶面积脯氨酸含量的差异性,探索紫花苜蓿抗旱性与叶面积大小的关联性。[结果]该研究结果表明,在旱作条件下,不同苜蓿品种的抗旱性与其叶面积大小有直接关系,叶面积越大的苜蓿品种脯氨酸含量越高,其抗旱性越强。[结论]叶片面积可以作为衡量不同苜蓿品种抗旱性强弱的一个较为直观的辅助性指标。

关 键 词：ALFALFA PROLINE Leaf area Drought resistance 

分 类 号：S541.9[农业科学—作物学]