玉米叶部形态指标与抗旱性的关系研究  

Study on the Relations of Leaf Morghology Indexes and Drought Resistance of Maize

作　　者：张振平[1,2] 孙世贤[3] 张悦[2] 白向历[1] 齐华[1] 

机构地区：[1]沈阳农业大学,沈阳110161 [2]沈阳市农业科学院,沈阳110034 [3]全国农业技术推广服务中心,北京100026

出　　处：《玉米科学》2009年第3期68-70,共3页Journal of Maize Sciences

基　　金：北京农业育种基础研究创新平台项目“超级玉米品种选育及中国玉米标准DNA指纹库构建研究”--超级玉米品种试验鉴定关键技术与方法研究

摘　　要：研究了中度水分胁迫下不同抗旱型品种的叶部形态特征及其与抗旱性的关系。结果表明:叶片衰老指数、叶片卷曲指数与抗旱性呈显著负相关;叶形值、叶向值与抗旱性呈显著正相关。灰色关联度分析结果表明,叶向值、叶形值与抗旱性的关系较叶片卷曲指数、叶片衰老指数更为重要,以上叶部形态指标是抗旱性鉴定的重要指标之一。The maize characters and relations of leaf morghology of different drought resistance varieties were studied under moderate water stress. The results showed that the leaf senescent index and leaf rolling index were positively related to the drought resistance, while leaf shape value, leaf orientation value were in the opposite way. According to the results of gray association analysis, it could be concluded that leaf shape value, leaf orientation value were more important relations to drought resistance than the leaf rolling index and leaf senescent index. The leaf morghology indexes of above were one of the important indexes of the identification of drought resistance of maize.

关 键 词：玉米 水分胁迫 抗旱性 形态指标 

分 类 号：S513.01[农业科学—作物学]