安徽农业科学2025，Vol.53Issue(24)：41-44,52,5.DOI:10.3969/j.issn.0517-6611.2025.24.008
盐胁迫对不同遗传背景玉米幼苗生理生化特性的影响
Effects of Salt Stress on Physiological and Biochemical Characteristics of Maize Seedlings with Different Genetic Backgrounds
摘要
Abstract
[Objective]To reveal the effects of NaCl stress on the physiological and biochemical characteristics of maize seedlings with different genetic backgrounds and their adaptation mechanisms.[Method]Two self cultivated maize varieties,"Zhaohuang 20"and"Zhaohuang 30",were selected as the research objects.Hydroponic cultivation was used to investigate the effects of different concentrations of NaCl(0 mmol/L(CK),25,50,75,100 mmol/L)and time treatment on various physiological and biochemical indicators and agronomic traits of maize seed-lings.[Result]Different concentrations and durations of salt stress have varying effects on the physiological and biochemical indicators as well as agronomic traits of maize seedlings of different varieties.Salt stress can significantly inhibit the growth and development of maize seedlings,and with increasing stress time and concentration,the growth rate,root length,aboveground biomass,chlorophyll content,and leaf water con-tent of seedlings show a slowing or decreasing trend.Salt stress can also lead to an increase in malondialdehyde content and soluble protein content,as well as an increase in intracellular oxidative stress.[Conclusion]Both varieties have certain salt tolerance,but the new variety"Zhaohuang 30"with rich genetic background has stronger seedling stress tolerance compared to the relatively single genetic background"Zha-ohuang 20".关键词
盐胁迫/玉米幼苗/生理生化特性Key words
Salt stress/Corn seedlings/Physiological and biochemical characteristics分类
农业科技引用本文复制引用
王世敏,胡荣,刘健君,张芷艺,张时军,罗荣滨,字银娇,张海燕,程金朋..盐胁迫对不同遗传背景玉米幼苗生理生化特性的影响[J].安徽农业科学,2025,53(24):41-44,52,5.基金项目
云南省科技人才与平台计划院士专家工作站项目(202305AF150082) （202305AF150082）
云南省科技人才与平台计划中青年学术及技术带头人后备人才项目(202305AC160042) （202305AC160042）
昭通市院士专家工作站项目(2022ZTYX16). （2022ZTYX16）
