Multivariate Screening of Upland Cotton Genotypes Reveals Key Traits for Salt Tolerance at the Seedling Stage

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Salinity stress is one of the major abiotic constraints affecting cotton productivity, especially during the early growth phase. This study employs a comprehensive multivariate screening approach to evaluate upland cotton (Gossypium hirsutum L.) genotypes for their salt tolerance at the seedling stage. Using a combination of morphological, physiological, and biochemical parameters, the analysis identifies key traits such as root length, shoot biomass, relative water content, chlorophyll stability, and ion homeostasis (Na⁺/K⁺ ratio) as major contributors to salinity resilience. Principal component and cluster analyses effectively distinguished salt-tolerant genotypes, enabling the classification of diverse cotton lines based on tolerance levels. The integration of these multivariate tools provides a holistic framework for selecting elite genotypes suitable for breeding programs targeting saline-prone environments. The findings underscore the importance of multi-trait evaluation to enhance genetic improvement for salt stress tolerance, contributing to sustainable cotton production under changing climatic and soil salinity conditions.


#UplandCotton #SaltTolerance #SeedlingStage #MultivariateAnalysis #CottonGenotypes #AbioticStress #SalinityStress #CropImprovement #PlantPhysiology #BreedingForTolerance #SustainableAgriculture #CottonResearch #NaKBalance #SoilSalinity #CropResilience #MorphoPhysiologicalTraits #BiochemicalScreening #SalineSoils #AgronomicInnovation #StressAdaptiveGenotypes #ClimateResilientCrops #PlantStressBiology #CottonSeedlings #TraitAssociation #GenotypeScreening #CottonGenomics #PlantBreeding #CropSelection #SaltResilience #AgriculturalSustainability





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