Assessing Drought Tolerance of Newly Developed Tissue-Cultured Canola Genotypes under Varying Irrigation Regimes

Drought is a major abiotic stress that greatly affects canola growth, production, and quality. Moreover, water scarcity projected to be more severe frequent as result of climate change, in particular arid environments. Thereupon, developing drought-tolerant high-yielding genotypes has become critical sustaining its production ensuring global food security with the continuing population growth. In present study, ten comprising six developed tissue-cultured genotypes, two exotic commercial cultivars were evaluated under four irrigation regimes. The applied regimes well-watered (100% crop evapotranspiration, ETc), mild drought (80% moderate (60% (40% ETc) conditions. Drought-stress treatments (80, 60, 40% gradually reduced chlorophyll content, relative flowering time, days maturity, plant height, number pods, branches, seed yield, oil percentage, increased proline, phenolic, anthocyanin, glycine betaine contents. exhibited varied responses drought-stress T2, T3, T1, well genotype Torpe, possessed highest performance all parameters surpassed other tested water-deficit Overall, our findings elicited superiority certain newly ones compared cultivars, which could exploited breeding