Development of new inbred lines of sunflower with improved thermoresistance

The results of researches on the development of new sunflower thermoresistant lines are presented. New highly thermo- and droughtresistant lines-restorers of pollen fertility of sunflower, which are effectively used in heterotic breeding of sunflower for drought-resistance, have been developed by the method of inbreeding and purposeful selection for thermoresistance during 5 years.