The plants, obtained from the seeds treated with Reglalg, had lower epicotyls length and, as a consequence, their tillering node is formed more than 1,6 cm deeper in the soil. As result, the of experimental plants tillering node and node roots were speeded in the soil with higher moisture, and in snowless winter the soil temperatures on the level of this node are 3-6oC higher (in the summer respectively below) than that a subjected the tillering nodes of control plants. All these factors provide the protection of plants from extreme environmental conditions. In 2013-2014 and 2014-2015 the treatment of Moldova 5 seeds with solution of Reglalg before sowing, assured the harvest increase from 57,3 and 52,4 q/ha on control field, to 65,8 and 58,6 q/ha, on experimental field.