干旱地区农业研究2017，Vol.35Issue(1)：240-247,8.DOI:10.7606/j.issn.1000-7601.2017.01.36
棉花抗旱品种筛选鉴定及抗旱性综合评价方法
Screening and evaluation for drought resistance of cotton varieties
摘要
Abstract
In order to screen the drought resistance of germplasm resources and develop cotton drought resistance e-valuation system,76 different cotton varieties (lines)were planted under drought stress and normal irrigation in Dun-huang City,Gansu province,where the annual rainfall is less than 40 mm .Drought resistance of 76 varieties (lines)was evaluated by the investigation on 10 agronomic traits and yield index which is closely related to drought resistance of cot-ton,in combination with the comprehensive drought resistant coefficient (CDC),comprehensive drought resistant index (CDI),membership function values (CDM)and drought resistance,drought resistance comprehensive evaluation values (D)four method .The evaluation results of the four methods were basically the same,and then clustering analysis was performed .The 76 varieties were divided into High Resistance (class I),Resistance(class Ⅱ),Middle (class Ⅲ), Sensitive (class IV)and High Sensitivity (class V).The resulting 10 agronomic traits of drought resistance coefficient as the independent variable,four kinds of comprehensive evaluation of drought resistance of score values as the dependent variable,can be used to establish the regression equation using stepwise regression method for predict drought resistance of cotton,facilitating the simple and accurate evaluation of the drought resistance of breeding germplasms .关键词
棉花/抗旱性/筛选/评价Key words
cotton/drought resistance/screening/evaluation分类
农业科技引用本文复制引用
李忠旺,陈玉梁,罗俊杰,石有太,冯克云,陈子萱..棉花抗旱品种筛选鉴定及抗旱性综合评价方法[J].干旱地区农业研究,2017,35(1):240-247,8.基金项目
甘肃省科技重大专项（1207NCXA264）；国家自然科学基金（31460365）；甘肃省农业科学院“现代农业生物技术集成与应用”创新团队 （）
