不同梯度碱胁迫对辽宁滨海稻区水稻产量和品质的影响

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中图分类号：S511 文献标识码：A DOI编码：10.3969/j.issn.1006—6500.2025.05.004

The Impact of Diferent Gradient Alkaline Stresson Rice Yield and Quality in the Coastal Rice-growing Regions ofLiaoning Province

WANG Ruipeng，YU Yahui，XIA Ming，WANG Ying，WANG Tong，QUE Buchao （Liaoning Instituteofsaline-alkaliLand Utilization，Panjin，Liaoning12401O，China）

Abstract：Tofcientlyutizesalinalkalilandndmproviceyieldandqualitytisstudynaldteeetsofdiadi entsofalkalistressonriceandsreesforalkali-tolerantricegermplasmresources，Thericevariety（Yangeng337）andjaponica germplasmresouce（JS9）wereusedasexperimentalmaterials，witonvetionalsolservinastheontrol（CK，pH.91）.Talkali stresstreatmentswereestablished：walkalitreatment（T1，pH8.56）andhighalkalitreatment（2，pH8.81），toinvestigateeeffectsof alkalistressoniceyield，illngppearanc，taste，andcookingquality.eresultsdmonsratedthattetwolkalitole antmaterialsebiteddistictresponsesunderdiferentalkali reatments.UnderTstressYangeng337showednosigiantyield reduction （18.8 % decrease rate），with improved appearance qualitybut declined tastequality.Under T2 stress，itstaste qualitydisplayed a "V" shaped recovery.In contrast，JS9 maintaineda stableyieldreductionrateunder varying alkali stresses，exhibiting strongeralkalitleraneinillngqualityomparedtYangeng337.However，isappeaance，taste，ndcookingqualitiseiat edsignificantlyaspincreased.Insummary，thissdyevealstersposeofceyieldandqualitytoalkalisres.kalioleat ricevarietiescuivatedinsalin-alkalisoilsshowpotentialforimprovinggrainqualityanddevelopingsuperiortastecharacteristics， butfurthebreedingofmorealkaliresistantvarietiesisstillrequired.Futureefortsshouldfocusondevelopinghigldingigh qualityalkalitolerantcevaresndtingorespodingulivantues.Bysientificallutilgmodeatelyli alkalilandresources，itwillbepossible toenhanceboththequalityandyieldofriceinthesechallnging environments.

Keywords： Liaoning coastal rice area;alkali stress;rice;yield; quality

中国是人口大国和粮食消费大国，在全球气候变化加剧、耕地资源日益紧张的背景下，盐碱地的开发利用已成为保障粮食安全的重要战略方向，盐碱地农业发展迎来新的机遇1。（剩余6016字）