玉米幼苗期耐盐性评价的研究

天津农学院学报 ›› 2014, Vol. 21 ›› Issue (4): 13-17.

玉米幼苗期耐盐性评价的研究

吴翠萍, 张培培, 杜锦, 曹高燚, 王丹, 向春阳^通信作者

天津农学院农学与资源环境学院,天津 300384

收稿日期:2014-04-16 出版日期:2014-12-20 发布日期:2019-10-21
通讯作者: 向春阳（1965-）,男,湖北武汉人,教授,博士,主要从事玉米遗传育种方面的研究。E-mail:xiang5918@sohu.com。
作者简介:吴翠萍（1991-）,女,云南开远人,本科在读,主要从事玉米耐盐机理的研究。E-mail:1208734622@qq.com。
基金资助:
天津市科技攻关项目“饲用高油玉米相关性状的遗传研究及新品种选育”（06YFGZNC01200）; 天津市农业科技成果转化与推广项目“中单系列玉米杂交种栽培示范”（201204070）; 国家级大学生创新创业训练计划项目“赤霉素对盐胁迫下不同玉米萌发及幼苗生理的影响”（201410061115）

Study on Evaluation of Salt Tolerance of Maize in Seedling Stage

WU Cui-ping, ZHANG Pei-pei, DU Jin, CAO Gao-yi, WANG Dan, XIANG Chun-yang^{Corresponding Author}

College of Agronomy and Resource Environment, Tianjin Agricultural University, Tianjin 300384, China

Received:2014-04-16 Online:2014-12-20 Published:2019-10-21

摘要/Abstract

摘要： 为了比较不同玉米的耐盐性差异,同时建立玉米苗期耐盐性的评价体系,在恒定盐胁迫浓度条件下,试验测定了玉米幼苗期某些性状及生理指标,并用隶属函数值法分析了不同玉米品种的耐盐性。结果表明:发芽率、苗高、根长、叶K⁺/Na⁺、根相对含水量、苗鲜重、根鲜重、苗干重及根干重盐害系数的隶属函数值随着总隶属函数值的增加而递增,均与总盐害系数隶属函数值呈极显著正相关。结合盐池种植试验,初步确定根长、根鲜重、根干重、苗鲜重、苗干重、叶K⁺/Na⁺和发芽率可作为玉米苗期耐盐鉴定指标。

关键词: 玉米, 耐盐性, 幼苗期, 评价

Abstract: This study was conducted to compare differences in salt tolerance of different maize and to construct the measuring system for evaluating identification indexes of salt tolerance in maize seedlings. Some traits and physiological indexes were measured under constant concentration of salt stress. Furthermore, membership function values were adopted to analyze salt tolerance of different species. The results show that subjection values of salt toxicity coefficient of germination ratio, seedling height, root length, leaf K⁺/Na⁺, root relative water content, seedling fresh weight, root fresh weight, seedling dry weight and root dry weight increased gradually with the increase of the sum subjection values, and they were positively correlated with the sum subjection values significantly. Based on the salt pool experiments, it is initially determined that root length, root fresh weight, root dry weight, seedling fresh weight, seedling dry weight, leaf K⁺/Na⁺ and germination ratio can be used to assess the salt tolerance of maize in seedling stage.

Key words: maize, salt tolerance, seedling stage, evaluation

中图分类号:

S332.1

吴翠萍, 张培培, 杜锦, 曹高燚, 王丹, 向春阳. 玉米幼苗期耐盐性评价的研究[J]. 天津农学院学报, 2014, 21(4): 13-17.

WU Cui-ping, ZHANG Pei-pei, DU Jin, CAO Gao-yi, WANG Dan, XIANG Chun-yang. Study on Evaluation of Salt Tolerance of Maize in Seedling Stage[J]. Journal of Tianjin Agricultural University, 2014, 21(4): 13-17.

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