中国蔬菜Issue(7)：83-91,9.DOI:10.19928/j.cnki.1000-6346.2025.2018
132份辣椒种质资源苗期耐涝性鉴定
Identification of Waterlogging Tolerance of 132 Pepper Varieties at Seedling Stage
摘要
Abstract
Waterlogging stress is one of the major abiotic stresses in agricultural production.To investigate the waterlogging tolerance,132 pepper varieties(lines)were subjected to waterlogging treatment at the seedling stage.Twelve key agronomic traits were measured,and a comprehensive evaluation was conducted using descriptive statistics,association function,principal component analysis,cluster analysis,and correlation analysis.The results showed significant variability in waterlogging tolerance among the 132 pepper varieties(lines).Under waterlogging stress,the coefficients of variation for the measured traits ranged from 12.31％to 50.00％,while those under control conditions ranged from 10.42％to 42.55％.Principal component analysis converted the waterlogging tolerance coefficients of the 12 agronomic traits into three principal components based on their contribution rates,explaining 79.131％of the total variation.By calculating the comprehensive waterlogging tolerance coefficient(D value)and conducting cluster analysis,the 132 pepper varieties(lines)were classified into five tolerance levels.Five highly waterlogging tolerant pepper varieties(lines)were identified,confirming that indicators such as ground biomass(fresh weight and dry weight),underground biomass(fresh weight and dry weight),total root volume,plant height,and total root surface area serve as effective comprehensive indicators for assessing seedling flood tolerance in pepper.关键词
辣椒/苗期/农艺性状/耐涝性/综合耐涝系数Key words
Capsicum annuum L./seedling stage/agronomic characters/waterlogging tolerance/comprehensive waterlogging tolerance coefficient引用本文复制引用
李尧尧,张现周,常晓轲,姚秋菊,赵俊卿,杨凡..132份辣椒种质资源苗期耐涝性鉴定[J].中国蔬菜,2025,(7):83-91,9.基金项目
现代农业产业技术体系项目(CARS-24-G-15),河南省重点研发专项(251111111100),河南省农业科学院创新团队专项(2024TD43) （CARS-24-G-15）
