中国农业科技导报2024，Vol.26Issue(3)：26-39,14.DOI:10.13304/j.nykjdb.2022.0732
不同水分胁迫处理对陆地棉核心种质资源的影响
Effects of Different Water Stress Treatments on Core Germplasm Resources of Upland Cotton
摘要
Abstract
In order to explore the response ability of upland cotton to drought under different water stress and screen the key drought-resistant indexes and the excellent drought-resistant germplasm resources,30 upland cotton core germplasms were selected as experimental materials,and compared with normal irrigation treatment during the whole growth period,2 water stress treatments,one water after sowing and one water at the flowering bollboll stage respectively,and 2 water stress treatments at the flowering bollboll stage were set up.The corresponding indexes were measured at bud stage,boll stage and boll opening stage by descriptive statistical analysis,difference analysis,principal component analysis and correlation analysis,the drought resistance of materials was evaluated by using drought resistance comprehensive evaluation value(D).The results showed that drought stress had different effects on the growth and development of different cotton materials,the D value of the treatment of watering one water after sowing and one water at flowering and boll stage was more discrete(0.285～0.774),which could more clearly distinguish between different varieties of drought resistance.Using D value,30 materials could be divided into 4 types:Type Ⅰ included 6 cotton varieties such as'Zhongmiansuo 41''Xinluzao 7'etc.and showed high drought resistance;Type Ⅱ included 11 cotton varieties such as'Jinmian 46''Xinluzao 31'etc.and showed middle drought resistance;Type m included 5 cotton varieties such as'Zhongmiansuo 17''Lu 1138'etc.and showed drought sensitive;Type Ⅳ included 8 cotton varieties such as'Xinluzhong 8''Jiumian 8'etc.and showed high sensitive to drought.The first node number of fruit branch,number of fruit branch,plant height,grain yield and lint percentage were sensitive to drought,which could be used as the key indexes for drought resistance evaluation of cotton.Above results could provide basis for cotton drought-resistant.关键词
棉花/水分胁迫/隶属函数/抗旱指标/抗旱性评价Key words
cotton/water stress/membership function/drought resistance index/drought resistance evaluation分类
农业科技引用本文复制引用
李江博,高文举,运晓东,赵杰银,耿世伟,韩春斌,陈全家,陈琴..不同水分胁迫处理对陆地棉核心种质资源的影响[J].中国农业科技导报,2024,26(3):26-39,14.基金项目
新疆维吾尔自治区自然科学基金项目(2021D01A92) （2021D01A92）
中国博士后科学基金面上项目(地区专项支持计划)第69批(2021M693901) （地区专项支持计划）
新疆农业大学大学生创新训练计划项目(dxscx2022032). （dxscx2022032）
