Annals of Applied Biology, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 16, 2024
Abstract Water constraint is a crucial factor in determining the productivity and production of linseed or flaxseed globally. The root system consists single taproot mainly confined to topsoil; thus, structure significantly impacts uptake water from soil. This research conducted root–shoot phenotyping on diverse range germplasm under PEG‐induced deficit stress conditions unravel potential genebank for drought tolerance. Varied responses substantial diversity genotypic response were observed among accessions all growth parameters both normal conditions. application PEG led decrease (ranging 7.39% 62.02%) except chlorophyll content, which exhibited an increase 13.76% Principal component analysis revealed that first four principal components (PCs) with Eigenvalue >1 explained 74.23% total variance, PC alone accounting 42.15% variance contributed by various traits such as leaf width, shoot length, biomass, surface area, volume. Assessing comparative performance based susceptibility index (SSI) shoot–root length subset 12 tolerant (SSI ≤ 0.50) 5 susceptible > 1.00), genotypes was constituted validation at adult plant stage. IC0096648, IC0523799, IC0249015, IC0096587, IC0385336, IC0498744, IC0499170, EC0041481, IC0526017, IC0623723, IC0113110, IC0621685 exhibiting tolerance during initial (seedling stage) maintained physiological efficiency yield elite drought‐tolerant identified present study will provide access genetically material breeding enhance linseed.
Language: Английский