山东农业科学2025，Vol.57Issue(1)：30-39,10.DOI:10.14083/j.issn.1001-4942.2025.01.004
萝卜萌芽期耐盐性鉴定与评价
Identification and Evaluation of Salt Tolerance of Radish during Germination
摘要
Abstract
In order to evaluate and identify the salt tolerance of radish in early stage,this study used 6 different radish germplasms as materials and screened the appropriate salt concentration to evaluate the salt tol-erance at germination stage.Based on the screened salt concentration,the stress tests were carried out on 107 radish germplasms to analyze its effects on 8 characters including germination potential,germination rate,rela-tive germination potential,fresh weight of sprout,root length of sprout,relative root length,sprout length and relative sprout length.Then the salt tolerance at germination stage was comprehensively evaluated by correla-tion analysis,principal component analysis,membership function method and cluster analysis.The results showed that when NaCl concentration was 200 mmol/L,the germination potential and germination rate of all the six radish germplasms decreased significantly,but the germination rate of most materials was still about 60％,so it was chosen as the appropriate concentration for salt tolerance evaluation.At this salt concentration,107 radish germplasms at germination stage were treated and all the 8 characters showed some variation,a-mong which,the coefficient of variation of germination potential was the largest and that of sprout length was the smallest.Under salt stress,significantly positive correlations were observed among germination potential,germination rate,root length of sprout,relative germination rate,relative root length and relative sprout length.The principal component analysis results showed that the cumulative contribution rate of the first three principal components was as high as 80.687％.The membership function method and cluster analysis were used to rank and cluster the tested radish germplasms respectively,and their results were in good consistency.Five germplasms with strong salt tolerance were selected,which were No.101(Chunbaiyu),No.70(Yang-zhou Yuanbai),No.89(Degaoliangfenghong),No.79(Huaxiayipin)and No.91(Yidianhong).The results of this study could provide data support for salt tolerance evaluation and new insight for new salt-tolerant varie-ty breeding of radish in the future.关键词
萝卜/萌芽期/耐盐性/主成分分析/隶属函数分析/聚类分析Key words
Radish/Germination stage/Salt tolerance/Principle component analysis/Membership function analysis/Cluster analysis分类
农业科技引用本文复制引用
成宜德,刘辰,刘贤娴,徐文玲,车亚莉,王淑芬..萝卜萌芽期耐盐性鉴定与评价[J].山东农业科学,2025,57(1):30-39,10.基金项目
山东省农业良种工程项目(2022LZGC008,2022LZGCQY013) （2022LZGC008,2022LZGCQY013）
济南市"新高校20条"资助项目(202228092) （202228092）
