不同濃度NaCl溶液脅迫對(duì)棉花種子萌發(fā)特性的影響

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中圖分類號(hào)：S-3 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：2096-9902（2025）12-0031-05

Abstract：Thisstudyivestigatedthegerminationcharacteristicsofcottonsedsunderdiferentsaltconcentrationstoprovide areferenceforimprovingsalttoleranceduring plantgermination.Usingeightcotonvarieties（H4，H18，H29，H35，H37，H38， H43andH52）asexperimentalmaterials，NaClsolutionconcentrationgradientsweresetatO.05，0.1，0.15，0.2andO.3mol/Lto determinetheefectsofNaCl stressoncotonseedgermination.UnderNaClstress，parameterssuchasrelativegerminationrate， seedfreshweight，relativegerminationpotentialseeddryweight，andrelativegerminationindexgenerallyshowedaninitial increase folowedbyadeclineassaltoncentrationincreased，indicatingthatlowsaltconcentrationspromotedseedgeination. Theresults revealed the following order of salt tolerance under NaCl stress：H4>H43>H35 > H38 > H52>H29>H18>H37. These findings provide a basis for selecting salt-tolerant coton varieties in Xinjiang's cotton production.

Keywords： cotton; seed germination; identification;salt tolerance; NaCl

土壤鹽堿化是主要的非生物脅迫因素之一，嚴(yán)重限制了全球的農(nóng)業(yè)生產(chǎn)，極大地影響了作物的產(chǎn)量與品質(zhì)。（剩余6000字）