山东农业科学2023，Vol.55Issue(11)：88-95,8.DOI:10.14083/j.issn.1001-4942.2023.11.013
不同切花菊品种响应盐胁迫的生理特性研究
Physiological Characteristics of Different Varieties of Cut Chrysanthemum Response to Salt Stress
摘要
Abstract
In order to study the physiological response law and salt tolerance of different species of cut chrysanthemum under salt stress,six cut chrysanthemum varieties were used as materials to study the effects of different concentrations of NaCl on plant growth and physiological and biochemical indexes,and their salt tol-erance was comprehensively evaluated by principal component analysis.The results showed that there were sig-nificant differences among the indexes of different cut chrysanthemum varieties under salt stress.With the in-crease of salt concentration,the chlorophyll content(SPAD)and leaf relative water content(RWC)showed downward trends,the relative conductivity(REC)and malondialdehyde(MDA)content showed upward trends,and the soluble protein(SP)content and superoxide dismutase(POD)and peroxidase(SOD)activi-ties first increased and then decreased.Based on the performance of various indicators of the cut chrysanthe-mum varieties,the salt tolerance of the six varieties was evaluated and sequenced as Seoul＞Princess Heart＞Funi＞Kevin Pink＞Stripe＞Silver Star Purple.The principal component analysis results of the indexes showed that REC,MDA content and SOD activity could summarize most of the information of the seven indexes,and could be used to evaluate the salt tolerance of cut chrysanthemum.关键词
切花菊/耐盐性/生理生化指标Key words
Cut chrysanthemum/Salt tolerance/Physiological and biochemical indicators分类
农业科技引用本文复制引用
王玲玲,罗艳,马蓉蓉,霍芸芸,虎淘淘,张黎,严瑞..不同切花菊品种响应盐胁迫的生理特性研究[J].山东农业科学,2023,55(11):88-95,8.基金项目
宁夏回族自治区重点研发计划项目"彩菊切花种苗快繁及精细化栽培技术集成示范"(2022BBF03035) （2022BBF03035）
