Results are presented in this report indicating studies of new sources of CMS and MS produced at IWS "Dobroudja". General Toshevo. Sterile analogues are developed through multiple crossing on the base of CMS ARG-1, ARG-3, AN-67 and MS AR G-2 of some fertile lines and varietics known as maintainers for CMS F.It is found also that some R lines for CMS F completely restore the fertility of sterile forms produced on the base of new CMS sources ARG-1, ARG-3 and AN-67 and MS ARG-2. Hybrid varieties are developed on the base of the sterile analogues with CMS ARG-1, ARG-3, AN-67 and MS ARG-2 and R lines determined for these CMS. These varieties are similar in qualities with those obtained by the participation of CMS F.'These results show that the new sources of CMS could have a practical utilization in sunflower production.