安徽农业科学2012，Vol.40Issue(9)：5119-5120,5721,3.
棉花苗期耐盐形态指标的筛选及综合评价
Selection of Morphology Indices for Salt Tolerance and Comprehensive Evaluation of Cotton During Seedling Stage
摘要
Abstract
[ Objective ] The aim was to select morphology indices closely related to salt tolerance of cotton during seedling stage, to provide a theoretical basis for salt tolerance identification, salt tolerance cotton resources screening and breeding. [ Method ] The change of relative value of 5 morphology indices such as emergence rate, plant height, blade numbers, leaf area, growth rate, and chlorophyll content of 10 cotton va-rieties were studied by identification method combining salt pool with saline-alkali soil. The relative emergence rate, the relative plant height and the relative blade numbers were chosen as salt tolerance identifying indices through principal component analysis. And 10 cotton varieties were evaluated by means of membership function method. [ Result] The salt tolerance capability of 10 cotton varieties decreased in order of zhimian3 > 09-7 > yumian21 > hanmian802 > ji668 > binmian5 > liaomianl5 > yun93kang354 > xinyan96-48 > lumian6. This evaluation results had a high correlation with the evaluation rusults of index of salt in Technical Standard of Evaluation for Salt Tolerance on Cotton, so the selected 3 morphology indices could be used for comprehensive evaluation of cotton in seeding. [ Conclusion ] The relative emergence rate, the relative plant height and the relative blade numbers can accurately reflect the salt tolerance capability of cotton during seedling stage. But it is better to choose salt injury index, morphology indices and physiological and biochemical indices to do comprehensive evaluation if completely and systematically the salt tolerance of cotton.关键词
棉花/苗期/耐盐性/盐害指数/形态指标/隶属函数/综合评价Key words
Cotton/ Seeding stage/ Salt tolerance/ Salt indury index/ Morphology indices/ Membership function method/ Comprehensive e- valuation分类
农业科技引用本文复制引用
刘雅辉,王秀萍,张国新,鲁雪林,张亚丽..棉花苗期耐盐形态指标的筛选及综合评价[J].安徽农业科学,2012,40(9):5119-5120,5721,3.基金项目
河北省农林科学院青年基金项目(13100102). （13100102）
