Iron Sulfate (FeSO4) Improved Physiological Attributes and Antioxidant Capacity by Reducing Oxidative Stress of Oryza sativa L. Cultivars in Alkaline Soil

Rice ranks second among cereals in dietary uses around the world. is deficient iron (Fe), and these are important micronutrients for infants, men, women. Fortification of rice with would help to minimize nutrient deficiency disorders humans. The current study aims introduce nutrient-rich rice. effects on germination, growth, photosynthetic pigment, antioxidant activity, reduction oxidative stress were investigated four Oryza sativa L. cultivars. O. different cultivars (Basmati-515, PK-386, KSK-133, Basmati-198) grown under five treatments (100, 200, 300, 400, 500 mM) sulphate (FeSO4) soil pH 7.5, along control, by using six replicates. result revealed that Fe treatment significantly affected seed germination percentage, plant growth parameters, biomass, pigments (chl a, chl b, total chlorophyll, carotenoids), enzymatic non-enzymatic reduced stress. findings also showed application including malondialdehyde content hydrogen peroxide, increasing i.e., catalase, ascorbate peroxidase, superoxide dismutase, glutathione 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH), compounds (proline, amino acid, soluble protein, phenolics, flavonoids, reducing-non-reducing sugar, carbohydrates) all sativa. Furthermore, FeSO4 induced a significant increase proline, free carbohydrates leaves cultivars, but Basmati-198 highest 169, 88, 110%, respectively, at concentration mM. present research work improved antioxidants denatured ROS (reactive oxygen species) alkaline soil. In order understand underlying mechanisms, long-term field investigations should be carried out molecular level examine patterns uptake growth.