不同苜蓿品种叶面积与抗旱性的关联性研究  

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

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：《安徽农业科学》2011年第17期10510-10512,共3页Journal of Anhui Agricultural Sciences

基　　金：中央级公益性科研院所基本科研业务费专项资金项目(BRF090202)

摘　　要：[目的]研究不同叶面积苜蓿品种的抗旱性及其两者的关系。[方法]通过研究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,探讨紫花苜蓿抗旱性与叶面积大小的关联性。[结果]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。[ 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 as- sessed by measuring the content of free proline for analyzing its correlation with leaf area. [ Result ] Under drought condition, the drought re- sistance of alfalfa is directly related to leaf area in a positive correlation. [ Conclusion] Leaf area could be used as an institutional assistant in- dex to reflect the resistance of different alfalfa varieties.

关 键 词：紫花苜蓿 脯氨酸 叶面积 抗旱性 

分 类 号：S132[农业科学—农业基础科学]