REDOX-REACTION OF ORZHYTSA 237МV CORN SEEDS TO HERBICIDES

Abstract

The paper deals with the effect of herbicidal agents on accumulation of TBA-active products, lipid hydroperoxides and activity of superoxide dismutase (SOD) and peroxidase (PO) in seeds of Orzhytsa 237MV hybrid corn. In the ripening corn seeds treated with herbicides, intensification of the course of reactions of lipid oxidation of the varying degree and functioning of antioxidant protection components (SOD, PО) has been revealed. Slowed accumulation of peroxidation products recorded in ripe seeds is connected with high activity of superoxide dismutase, and stable functioning of catalase and peroxidase. The above leads to the conclusion that the action of herbicides on seeds of plants of Orzhytsa 237MV hybrid corn in their ripening process promotes the ability to proper activation of studied enzymatic protection systems and functioning thereof at the level which would ensure the restoration and maintenance of homeostasis. It is found that Harness, Meister and Adengo herbicides have the least negative impact.