中国农业科技导报2025，Vol.27Issue(10)：24-31,8.DOI:10.13304/j.nykjdb.2024.0679
氧化石墨烯对干旱胁迫下谷子生长发育及生理生化过程的影响
Effects of Graphene Oxide on Growth Development and Physiological and Biochemical Processes of Foxtail Millet Under Drought Stress
摘要
Abstract
Drought is one of the main stress factors affecting the growth and development of foxtail millet,which seriously inhibits the yield and quality of foxtail millet.Graphene oxide(GO)can effectively improve the resistance of crops to stress.To further explain the mechanism of GO improving the drought resistance ability of millet,80 mg·L-1 GO was used to treat Jigu 168(drought sensitive)seedlings,and the growth,development and physiological and biochemical processes of millet were analyzed.The results showed that 80 mg·L-1 GO treatment for 15 d could significantly improve the phenotype and root system of foxtail millet,and promote the growth and development of foxtail millet,such as plant height,biomass and root system parameters.After 7 and 15 d of GO treatment,the activity of peroxidase(POD)increased by 42.86%and 66.67%,respectively,and the activity of catalase(CAT)increased by 30.23%and 52.17%,respectively,which indicated that GO could promote the function of antioxidant system and reduce cell damage.In terms of osmotic regulation,GO significantly reduced the Na+/K+under drought stress,which helped to maintain intracellular osmotic balance and prevent excessive water loss.In addition,the grain weight after GO treatment was significantly increased by 54.73%.Therefore,a certain content of GO could significantly promote the growth and development of foxtail millet,improve its physiological and biochemical processes,thereby improve the response ability of foxtail millet to drought stress,and ultimately increase the yield.Above results provided scientific basis for GO as soil water-retaining agent to alleviate drought stress during crop cultivation.关键词
谷子/氧化石墨烯/干旱胁迫/根系参数/生理生化过程Key words
foxtail millet/graphene oxide/drought stress/root system parameters/physiological and biochemical processes分类
农业科技引用本文复制引用
程梦航,赵宇,罗水文,杜昊阳,赵若涵,刘建凤,丁民伟,夏雪岩..氧化石墨烯对干旱胁迫下谷子生长发育及生理生化过程的影响[J].中国农业科技导报,2025,27(10):24-31,8.基金项目
国家谷子高粱产业技术体系建设专项(CARS-06-14.5-A23) （CARS-06-14.5-A23）
河北省农林科学院基本科研业务费包干制项目(HBNKY-BGZ-02). （HBNKY-BGZ-02）
