Seed priming with different agents mitigate alkalinity induced oxidative damage and improves maize growth

Soil alkalinity is a severe threat to crop production globally as it markedly retards plant growth. Different techniques are used mitigate alkaline stress, but priming considered the most appropriate. The current study was carried out in complete randomized design (CRD) evaluate effect of different on maize grown under levels stress. experiment comprised treatments stress (AS) including, control, 6 dS m-1 and 12 including hydro-priming (HP), osmo-priming (OP) with potassium nitrate: KNO3) redox-priming (RP) hydrogen peroxide (H2O2). Results indicated that significantly reduced growth biomass induced alterations physiological attributes antioxidant activities. root shoot subsequent by increasing electrolyte leakage (70.60%), (H2O2: 31.65%), malondialdehyde (MDA: 46.23%) sodium (Na+) accumulation (22.76%) reduction photosynthetic pigments, relative water contents (RWC), total soluble proteins (TSP) free amino acids, (K+) accumulation. However, alleviated alkalinity-induced toxic effects improved OP (KNO3) remained top performing. It appreciably owing synthesis better RWC (16.42%), TSP (138.28%), FAA (178.37%), K+ (31.385) activities (APX CAT) favoring Na+ exclusion maintenance optimum Na+/K+. In conclusion, KNO3 an imperative seed practice improve