The Effect on Germination and Seedlings of Wheat under Different Salt Stresses  

不同盐浓度胁迫对小麦萌发和幼苗生长的影响（英文）

作　　者：梁丹[1] 王建贺 刘丹[1] 王从磊[1] 时晓伟[1] 吴琴[2] 郑晶晶 冯刚[1] 

机构地区：[1]天津市农作物研究所,天津300384 [2]合肥丰乐种业股份有限公司玉米种子公司,安徽合肥231231 [3]武清区上马台镇人民政府农科站,天津301701

出　　处：《Agricultural Science & Technology》2016年第11期2564-2568,2577,共6页农业科学与技术（英文版）

基　　金：Supported by Foundation of President of Tianjin Academy of Agricultural Sciences(16001);Agriculture Science Technology Achievement Transformation Fund of Ministry of Science and Technology(2014GB2A100536);the National Science and Technology Pillar Program(2013BAD05B00)~~

摘　　要：[Objective] Wheat is the major grain crop in China. Salinization as an abi- otic stress has become an important limiting factor of wheat output. It has great sig- nificance to ensure the food security by improved the production of wheat in salin- ization of soil. [Method] This research is reference to previous study to be estab- lished by germination rate and seeding plants changes under salt stress to deter- mine the ability of salt tolerance of different wheat varieties. Under 300 mM NaCI to count germination rate and measuring the height, root length and root number of seeding in 200 mM and 400 mM NaCI to evaluated wheat varieties resistant to salt. [Result] Under this method, we found 3 grade-1 salt-tolerant varieties, 3 grade-2 salt-tolerant varieties, 5 grade-3 salt-tolerant varieties. [Conclusion] This study re- duced the work of salt-tolerance of wheat germplasm identification in salt pool. What＇s more, this study enriches the salt-tolerance of wheat germplasm resources, and provides a theoretical and technical support of wheat salt-tolerance breeding.[目的]小麦是我国重要的粮食作物,以土壤盐渍化为代表的非生物胁迫已成为小麦稳产高产的重要限制因素,进一步提高盐渍化土壤小麦产量,对提高粮食安全具有重要意义。本研究在借鉴以前小麦抗盐性研究经验的基础上,建立了通过盐胁迫下的小麦发芽率和苗期植株变化来确定耐盐能力的简化耐盐性鉴定技术。[方法]依据300 m M盐浓度下的发芽率;和水培苗期,在200和400 m M 2个盐浓度梯度水平下的株高、根长、根数变化评价小麦品种的耐盐能力。[结果]通过该方法从21个冬小麦品种中筛选出了1级耐盐品种3个;2级耐盐品种3个;3级耐盐品种5个。[结论]减少了小麦耐盐种质田间盐池鉴定的工作量,丰富了小麦耐盐种质资源,为小麦耐盐育种提供了理论和技术支撑。

关 键 词：WHEAT SALINIZATION Salt resistance Germplasm screening 

分 类 号：S512.1[农业科学—作物学]