THE INTERACTION OF GROWTH REGULATOR MELAPHEN AND PHYTOHORMONES IN THE REGULATION OF PHOTOSYNTHETIC ACTIVITY OF PLANTS OF POTATO SOLANUM TUBEROSUM L
The infl uence of synthetic growth regulator of melaphen (melamine salt of bis(hydroxymethyl)- phosphinic acid ) in a concentration of 10-6 M and phytohormones (of the IАA and 6-BAP) in the concentration of 10-5 M at their joint application on photosynthetic performance of the potato plant was studied. It is established, that Melafen together with phytohormones (of the IAA and 6-BAP) increases the concentration of carotenoids - low molecular weight antioxidants, increases the photochemical activity of chloroplasts of leaf of the potato plant, the concentration of sucrose in the conducting system of the leaf potatoes, that testifi es to strengthening of export assimilates. It is also shown, that Melafen together with the IAA signifi cantly increases the activity of non-cyclic photophosphorylation, which indicates on the synergies, that is «summarizing» effect in their action.