增香施肥对盐胁迫下水稻生理性状及产量的影响

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中图分类号：S153 文献标识码：A 文章编号：1006-060X（2025）12-0038-06

引用格式：，等.增香施肥对盐胁迫下水稻生理性状及产量的影响[J].湖南农业科学，2025（12）：38-43.DOI：10.16498/j.cnki.hnnykx.2025.012.007

Abstract：This studyivestigatedtheefectsofsalt stressandaroma-enhancing fertilizationonsolubleprotein，soluble sugar， andL-prolinecontentsinrice leavesandgrains，aswellasriceyieldrevealingtheassociationmechanismbetweenphysiological responsesandyieldformationofriceundersaltstresandaroma-enancngfertilizationconditions.Saline-alkali tolerantcevaretis Jingliangyou326andShangliangyul38wereusedasthetestvarietis，potexperimentswereconductedtosimulatetesaltstrs environment，andthearoma-enhancingfertilizationtreatment wassetup.Theresultsshowedthatsaltstressignifcantlyceased solubleproteinandL-prolinecontentsinleaves，butafectedthesolublesugarsynthesisduringmid-growthstages（bootingandful headingstages）ofrice.Shuangliangyoul38exhibited generaly highersoluble proteinandsolublesugarcontentstanJingliagyou 326，demonstratingstrongerosmoticregulatiocapacity.GrainL-prolinesignificantlyaccumulatedundersaltstresswhilethe solublesugarcontentmarkedlydcreasedindicatingsalttresimpactedgrainqualitybyinterferingithsoublesugarandL-rolin metabolicpathways.Aroma-enhancingfertilizationandsaltstrescausedsignificantreductionsinefectivepanicleumberandthe theoretical yields of Jingliangyou 326 and Shuangliangyou l38 decreased by 81.93% and 84.94% respectively. Aroma-enhancing fertilization partially alleviated yieldlossunder salt stress through increasing thegrain number per panicle（ 48.81% improvement in Shuangliangyoul38）buttheyieldcouldnotbefullrestoredtothelevelwithoutsaltstress.Thisresearchprovidesreferencefor bredingsateantvarietisdptiingfertlzationsraegisiliakalisois.Intefture，altlerantvartyeding should be integrated with fertilization technologies optimization to synergistically enhance the yield.

Keywords：aroma-enhancing fertilization;salt stress;rice; physiological stress indices;yield component

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