外源硒肥对藜麦生物学指标及其生理特性的影响

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中图分类号：S519 文献标志码：A 文章编号：2095-6819（2025）06-1668-11 doi：10.13254/j.jare.2024.0787

Effects of exogenous selenium fertilizer onbiological indexesand physiological characteristics of quinoa

MA Yanyu1， YANG Zailei1，2，FENG Yaozu3， HAN Runqiang1，MA Wenjing1，ADILAI Kurban1， JIA Hongtaol，2* （1.CollgeofesosdEviront，ijngAgriculualUivesityUruiOa;2ijgKeyboatol andPlantEologicalroes，UruiCina;3.rafotioCteroftdTlgicalcevets AcademyofAgriculturalSciences，Urumqi83oo91，China）

Abstract：Thisstudyaimedtoinvestigatetheefectsofleaf-appliedseleniumonthegrowth，yield，grainseleniumcontent，and physiologicalcharacteristicsofqinoa（Chenopodumquinoa Wild.）andtoidentifytheoptimal exogenousseleniumcocentrationfor enhancingquinoagrowth.Sodiumselenitewasappliedviafoliarspraying，with treatments includingcontrolgroupwithoutselenium（Omg·（204号 L-1 ，CK）and five varying levels of selenium application：5（Se1），10（Se2），20（Se3）， 30mg⋅L-1（Se4） ，and 40mg⋅L-1（Se5） .Growth indices，yieldselecotet，ndpiogicalparameeseaalyd.Rsultsidcatedtatfer7daysfSlaio planteighndstdameterebiedtegreatesticreasunderS4treatment.Ataturitytotalomassasghesinntstated 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， respectivelySpearmancorelationanalysisrevealedasignificantpositiverelationshipbetweenglutathioneperoxidaseactivityand peroxidaselevelsinqinoasaples.Mantelestesultsdemonstratedthatactivitiselatedtocarotenoids，peroxidaseenzsproline accumulation，andglutathioneperoxidasewerepositivelycorelatedwithsupplementalseleniumlevels.Comprehensiveanalysis underscoredthcriticalroleofselenuminenhancingphysiologicalfunctionswithinquinoa;timprovdanti-agingcapabiliswile promotinggrainfillngthoughosmoregulatiomechanismsandscavengingharmfulreactiveoxygenspecies.Furthermore，applyingsodium selenite at a concentration of 30mg⋅L-1 on leaf surfaces proved most efective for augmenting both yield and grain selenium content. Keywords：quinoa; foliar spraying selenium; physiological characteristic;sodium selenite; yield

硒（Se）是谷胱甘肽过氧化物酶（ GSH-Px 的重要成分，在保护细胞膜结构和减少氧化损伤方面起着至关重要的作用，是动植物生长发育过程中必不可少的关键物质。（剩余19130字）