ArticleScientific reports2026
Enhancing drought stress tolerance of NIL-SUB1DRO1 rice strain through different seed priming treatments.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Drought stress is a major abiotic factor that significantly reduces rice yield and productivity. This study analyzed the effectiveness of various seed priming techniques in enhancing drought stress tolerance in NIL-SUB1DRO line with an IR64 genetic background, known for its combined tolerance to flooding and drought stress. A complete randomized factorial design with five replications was employed, testing osmo-priming, halo priming, hydro priming, and non-primed control under drought and well-watered conditions. Drought stress markedly reduced plant height, shoot, and root biomass, leaf area, photosynthetic activities, and water relations traits (relative water content and leaf water potential) in non-primed seedlings, whereas seed priming treatments, especially osmo-priming and halo-priming treatments, significantly enhanced plant height, shoot, and root biomass, SPAD value, Fv/Fm, relative water content, leaf water potential, and photosynthetic rate in NIL-SUB1DRO1. Strong positive correlations between SPAD value, photosynthetic rate, Fv/Fm, biomass biomass-related traits. These findings suggest that seed osmo-priming is a promising strategy to enhance drought stress tolerance in NIL-SUB1DRO rice line.
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