向日葵不同生育期耐盐评价指标选择的研究  

Research on Screening Salt Tolerance Appraisal Indices at Different Growth Stages of Sunflower

作　　者：赵强[1] 占炜[1] 黄介生[1] 伍靖伟[1] 尹志男[1] 高鸿永 陈爱萍 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072 [2]内蒙古河套灌区义长灌域管理局,内蒙古五原015100

出　　处：《中国农村水利水电》2014年第2期23-25,29,共4页China Rural Water and Hydropower

基　　金：国家自然科学基金项目(51279142);"十二五"国家科技支撑计划项目(2011BAD25B07)

摘　　要：采用不同水平盐分处理的桶栽实验,利用Mass-Hoffman耐盐函数对向日葵不同生育期的株高、叶面积、花盘直径进行了盐分敏感性和相关性分析,并对各生育指标和产量进行相关性分析,得到了向日葵各生育期最优的耐盐评价指标。结果表明:株高相对增长量最适合作为向日葵苗期和蕾期的耐盐评价指标,而花盘直径相对增长量在花期和成熟期比株高、叶面积的相对增长量更适合作为向日葵的耐盐评价指标。In order to screen an ideal salt tolerance appraisal index at different growth stages of sunflower, the potted experiments un- der different salt treatment are conducted. The threshold-slope model of Maas and Hoffman is used to analyze the sensibility and rel-ativity between total dissolved solids of soil and growth indices at different growth stages of sunflower. The results show that the rel- ative height is an ideal salt tolerance appraisal index for seedling and bud stage, while the relative flower disc is better for florescence and mature stage.

关 键 词：向日葵 盐分胁迫 生育指标 盐分产量响应函数 耐盐指标 

分 类 号：S274.1[农业科学—农业水土工程]