Abstract

This study was conducted during 2007 to 2019 at the Lorch Potato Research Institute, Moscow region, Russia to study the effect of the application of new specific antioxidants (Skulachev ions) in order to counteract the ROS accumulation and physiological ageing of potato grown for seed production. The results of years of research on the use of Skulachev ions with geroprotective properties at various stages of original seed potato production represented. In vitro when adding SkQ1 preparation (2.5 nM) in an artificial nutrient medium there was an increased survival rate of tissue explants varieties with a shorter vegetation period by 16 to 43% and varieties with longer vegetation period by 7 to 13%. Simultaneously, the output of stem cuttings after the first grafting of regenerants grew in 1.9 to 2.7 times, and the number of cultivated micro plants was doubled after 5 to 7 passages in culture. Studies have shown that the use of Skulachev ions (SkQ1) counteracts the accumulation of ROS in cells, which confirmed by a corresponding decrease in the activity of peroxidase in the sprouts of tubers and leaves of potato plants. The result was a stabilizing effect on the growth, development and productivity of potato plants. In the field treatment of seed tubers with Skulachev ions (25 nM) and followed by spraying of plantings in the phase of budding - beginning of flowering (2,5nM) promoted more intense development of vegetative mass of plants (1.5 times the height and 1.7 to 2.1 of leaf area and increased the length of growing season. As a result of getting a reliable increase in yield of the studied varieties was 1.4 to 1.5 times.