寒旱农业科学2025，Vol.4Issue(7)：648-653,6.DOI:10.3969/j.issn.2097-2172.2025.07.010
氯化胆碱喷施对盐胁迫下玉米幼苗生长及生理性状的影响
Effects of Foliar Choline Chloride Application on the Growth and Physiological Traits of Maize Seedlings under Salt Stress
摘要
Abstract
Soil salinization has become one of the most challenging environmental issues worldwide.Improving crop salt tolerance is crucial for utilizing saline soil resources.As a low-toxicity and highly effective plant growth regulator,choline chloride can effectively alleviate salt stress in plants.Maize,as an important food and forage crop,faces numerous challenges when growing in saline soils.This study systematically investigates the regulatory effects of foliar-applied choline chloride on the maize seedling growth under salt stress through integrated physiological measurements and molecular biology approaches.The results demonstrate that choline chloride application under salt stress significantly increases root length,enhances chlorophyll content,improves nitrogen uptake capacity,promotes osmoregulatory substance(soluble protein)accumulation,reduces malondialdehyde content,and elevates antioxidant enzyme activities(SOD,CAT),thereby alleviating salt stress damage through multiple pathways.This study provides theoretical and technical support for maize production in saline soils and offers references for enhancing seedling stress resistance and cultivating vigorous maize seedlings.关键词
氯化胆碱/盐胁迫/生理指标/抗氧化酶/渗透调节物质Key words
Choline chloride/Salt stress/Physiological index/Antioxidant enzyme/Osmoregulatory substance分类
农业科技引用本文复制引用
张祥臻,汤继彬,加娜尔,毕斯锐,薛吉全,秦晓梁..氯化胆碱喷施对盐胁迫下玉米幼苗生长及生理性状的影响[J].寒旱农业科学,2025,4(7):648-653,6.基金项目
西北农林科技大学大学生创新创业计划项目(XN2025001011). （XN2025001011）
