中国瓜菜2025，Vol.38Issue(11)：36-43,8.DOI:10.16861/j.cnki.zggc.2025.0289
不同基因型苦瓜幼苗耐低温鉴定及评价指标筛选
Identification and evaluation index screening of low temperature toler-ance of bitter gourd seedling of different genotypes
摘要
Abstract
The effects of low temperature stress on physiology and biochemistry of Momordica charantia L.were studied to screen low-temperature-tolerant materials and evaluation indicators in 41 inbred seedlings.The results showed that the variation coefficient of 12 physiological and biochemical indicators among the 41 bitter gourd inbred lines were 5％-150％,which could be transformed into 5 independent comprehensive indicators.The cumulative contribution rate of the main factors reached 74.22％.Correlation analysis indicated that Fv/Fm was significantly negatively correlated with MDA content and soluble sugar content.The 41 different genotypes of bitter gourd inbred lines could be classified into 5 categories based on the strength of low-temperature tolerance evaluated by the membership function method.Six inbred lines with relatively strong low-temperature tolerance were screened out,and Pro content,SOD activity,Fv/Fm,MDA con-tent and Ci were established as the evaluation indicators of low-temperature tolerance,which provides a relatively effi-cient and applicable method for the efficient and early-maturing breeding of bitter gourd and the identification of low-tem-perature tolerance materials.关键词
苦瓜/低温胁迫/主因子分析/隶属函数/评价指标Key words
Bitter gourd/Low temperature stress/Principal factor analysis/Membership function/Evaluation index分类
农业科技引用本文复制引用
汪自松,沈伟,方利娟,杨静,王涛涛,李荣峰..不同基因型苦瓜幼苗耐低温鉴定及评价指标筛选[J].中国瓜菜,2025,38(11):36-43,8.基金项目
武汉市重点研发项目(2023020403010777) （2023020403010777）
百色学院科研启动金项目(DC2000002728) （DC2000002728）
