Abstract
The effect of sodium and potassium humate on the activity of antioxidant system and photosynthetic pigment concentration of irradiated seeds was studied. The treatment of maize seed with 0.005% and 0.001% solutions of sodium and potassium humate caused significant reduction in processes initiated by radiation. A positive effect of sodium and potassium humate solutions on the amount of malon dialdehyde, chlorophyll pigments and carotenoids, fluorescent characteristics (the maximum quantum yield of PSII (photosystem II) in seedlings obtained from gamma-irradiated maize seeds was revealed.
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