农业资源与环境学报2025，Vol.42Issue(6)：1668-1678,11.DOI:10.13254/j.jare.2024.0787
外源硒肥对藜麦生物学指标及其生理特性的影响
Effects of exogenous selenium fertilizer on biological indexes and physiological characteristics of quinoa
摘要
Abstract
This study aimed to investigate the effects of leaf-applied selenium on the growth,yield,grain selenium content,and physiological characteristics of quinoa(Chenopodium quinoa Willd.)and to identify the optimal exogenous selenium concentration for enhancing quinoa growth.Sodium selenite was applied via foliar spraying,with treatments including control group without selenium(0 mg·L-1,CK)and five varying levels of selenium application:5(Se1),10(Se2),20(Se3),30 mg·L-1(Se4),and 40 mg·L-1(Se5).Growth indices,yield,grain selenium content,and physiological parameters were analyzed.Results indicated that after 7 days of Se application,plant height and stem diameter exhibited the greatest increase under Se4 treatment.At maturity,total biomass was highest in plants treated with Se4.The grain yield for quinoa subjected to Se4 was found to be 32.26%greater than that of CK without any selenium application.Additionally,the seed selenium content for treatments Se4 and Se5 was observed to be 247.39%and 268.55%higher than that of CK,respectively.Spearman correlation analysis revealed a significant positive relationship between glutathione peroxidase activity and peroxidase levels in quinoa samples.Mantel test results demonstrated that activities related to carotenoids,peroxidase enzymes,proline accumulation,and glutathione peroxidase were positively correlated with supplemental selenium levels.Comprehensive analysis underscored the critical role of selenium in enhancing physiological functions within quinoa;it improved anti-aging capabilities while promoting grain filling through osmoregulation mechanisms and scavenging harmful reactive oxygen species.Furthermore,applying sodium selenite at a concentration of 30 mg·L-1 on leaf surfaces proved most effective for augmenting both yield and grain selenium content.关键词
藜麦/叶面喷硒/生理特性/亚硒酸钠/产量Key words
quinoa/foliar spraying selenium/physiological characteristic/sodium selenite/yield分类
农业科学引用本文复制引用
马艳雨,杨再磊,冯耀祖,韩润强,马文静,阿迪莱·库尔班,贾宏涛..外源硒肥对藜麦生物学指标及其生理特性的影响[J].农业资源与环境学报,2025,42(6):1668-1678,11.基金项目
新疆维吾尔自治区重点研发计划项目(2022B02010) Xinjiang Uygur Autonomous Region Key Research and Development Project(2022B02010) （2022B02010）
