【作者】 郑巨云； 曾辉； 王俊铎； 龚照龙； 梁亚军； 艾先涛； 郭江平； 冯国伟； 莫明； 李雪源；

【Author】 Zheng Juyun;Zeng Hui;Wang Junduo;Gong Zhaolong;Liang Yajun;Ai Xiantao;Guo Jiangping;Feng Guowei;Mo Ming;Li Xueyuan;Economic Corps Research Institute,Xinjiang Academy of Agricultural Sciences;Department of Mathematical and Physical Sciences,Xinjiang Teachers College;College of Science and Technology,Xinjiang Agricultural University;

【机构】 新疆农业科学院经济作物研究所； 新疆师范高等专科学校数理学院； 新疆农业大学科学技术学院；

【摘要】 通过研究萌发期盐胁迫条件及对照下不同陆地棉品种资源之间耐盐性状差异,明确盐胁迫对棉花萌发期相关性状的影响,筛选耐盐能力强的品种,为陆地棉耐盐遗传改良提供支持。以188份国内外棉花品种资源为研究对象,用棉花耐盐性研究常用的150.0 mmol·L^-1 NaCl作为鉴定评价浓度,测定在盐胁迫及清水对照条件下18 8份品种资源的发芽势、发芽率、芽长、芽鲜物质质量等4个指标,利用这4个指标的相对值,采用模糊数学的隶属函数法对188份棉花品种资源的耐盐性进行综合评价。结果表明,188份品种资源的发芽势、发芽率、芽长、芽鲜物质质量的相对值存在显著差异。经综合评价,筛选出1份高耐盐材料（新陆中22）、45份耐盐材料（新陆早1、新陆早21、苏棉12等）、120份中耐材料（新陆中21、新陆中54、辽棉17等）、22份敏感材料（春矮早、新陆中42、云151075等）。188份陆地棉品种资源材料大部分材料耐盐性为中耐（占63.8%）,筛选得到新陆中22、新陆早1、新陆早21等45份耐盐材料较强材料可以为陆地棉耐盐遗传改良的亲本材料。更多还原

【Abstract】 The aims of this study were to reveal the effects of salt stress on morphologic characters of upland cotton and provide theoretic support for salt tolerant genetic and breeding research of upland cotton in seedling stage.The germination potential,germination rate,bud fresh weight and bud length of 188 varieties resources at home and abroad were studied for comparative analysis under salt stress(150 mmol·L^-1NaCl) and the treatment of spraying clean water.The salt tolerances of the upland cotton varieties resources in seedling stage were identified by the fuzzy mathematical membership function method.The results showed that the morphologic characters of 188 varieties decreased compared with the treatment of spraying clear water in the seedling stage,the salt tolerance coefficient of cultivars was different in different varieties,and 1 salt resistance variety,45 salt tolerance varieties,120 middle salt tolerance varieties and 22 salt-sensitive varieties were identified by comprehensive evaluation.Through preliminary screening,most of 188 varieties resources are identified middle salt tolerance varieties,total 45 salt tolerant germplasms（such as Xinluzhong 22,Xinluzao 1,Xinluzao 21 and so on） as were identified,which could be used for improvement of cotton breeding for salt tolerance as the medial material and parent selection.更多还原