山东农业大学学报（自然科学版）2026，Vol.57Issue(1)：46-55,10.DOI:10.3969/j.issn.1000-2324.2026.01.005
PEG模拟干旱胁迫对高油酸花生品种幼苗形态和生理特性的影响
Effect of PEG-simulated Drought Stress on Morphological and Physiological Characteristics of High Oleic Acid Peanut Seedlings
摘要
Abstract
To identify the effects of drought stress on the seedling growth of high-oleic acid peanut varieties,this research selects eight high-oleic acid peanut cultivars as experimental materials,uses a hydroponic system in a laboratory and applies PEG-simulated drought stress during the seedling stage to analyze changes in root and leaf morphological and physiological characteristics across different high-oleic acid peanut cultivars.The results show that under PEG-simulated drought stress,the relative values of root morphological parameters and root activity in high-oleic acid peanuts increase,thereby enhancing the drought resistance coefficient of biomass.Drought stress significantly reduces root length,root surface area,root volume,root tip number,root activity,shoot dry weight,root dry weight,and total dry weight,while increasing the root-to-shoot ratio.Notably,small high-oleic acid peanut cultivars show a more pronounced decline in root activity than conventional oleic acid peanut cultivars,whereas large high-oleic acid peanut cultivars exhibit less reduction in root-related indices compared to conventional peanuts cultivars.Among the tested cultivars,Huayu 9113,Shanhua 21,Kainong 308,and Jihua 11 exhibit relatively strong drought resistance.关键词
高油酸花生/PEG胁迫/根系形态/生理特性Key words
High-oleic peanuts/PEG stress/root morphology/physiological characteristics分类
农业科技引用本文复制引用
刘瑞琦,宿宛玉,王恒斌,刘风珍,骆璐,谷明轩,万勇善,张昆..PEG模拟干旱胁迫对高油酸花生品种幼苗形态和生理特性的影响[J].山东农业大学学报（自然科学版）,2026,57(1):46-55,10.基金项目
山东省重点研发计划(2023TZXD007) （2023TZXD007）
国家现代农业产业技术体系资助(CARS-13) （CARS-13）
