SELENIUM EFFECT ON ANTIOXIDANT SYSTEM ACTIVITY UNDER HYPERTHERMIA AND SOME COMPONENTS OF THE RED CURRANT PRODUCTION PROCESS

Abstract

The aim of the study was to study the effect of selenium on the activity of the components of the antioxidant system under hyperthermia, as well as the effect of this microelement on the main components in the process of producing red currant plants. It is shown that the selenium microelement under simulated conditions of hyperthermia action on the leaves of red currant activates the work of the antioxidant catalase enzyme by 2,2 times. In connection with this, there is an insignifi cant increase in the active forms of oxygen in leaf tissues and, as a consequence, a slight development of peroxide damage to membrane lipids in comparison with the control. In the variant with selenium under the infl uence of hyperthermia, the intensity of LPO increased by 29,3% against 62,3% in the control. In the fi eld conditions, the exogenous plant enrichment with selenium contributes to a 50,0% increase in the content of photosynthetic pigments and makes slower the expenses of organic substances due to respiration intensity lowering. In the variant with selenium, the plants increased the average berry weight in the productive cluster by 19.2%, and by 17,0% - the number of berries in it. The selenium treatment of red currants contributed to the increase in plant resistance to hyperthermia and positively infl uenced on the components of the production process.