MAŠUK 505 is a corn hybrid characterized by late or medium-maturing ripening with a vegetative period of approximately 119-120 days. The plant is distinguished by its high stature and strong anthocyanic coloring of the first leaf sheath. Leaves are of medium width, and ears have medium length, slender, and weakly conical. Grain is toothed, with striking coloration: the upper part of the grain is yellow or orange, the lower part is yellow-orange, giving the grain an attractive appearance. The MAŠUK 505 hybrid exhibits high productivity, averaging 70.4–82.2 centners per hectare across the region, with maximum yields reaching up to 120.8–146.3 centners per hectare. It demonstrates high drought and lodging resistance, making it a reliable choice for various agroclimatic conditions. The hybrid is suitable for both conventional and minimum tillage systems, as well as for irrigation and strip-till systems, expanding its applicability in agriculture. MAŠUK 505 is recommended for cultivation in various regions, including the North Caucasus, Central Chernozem, and Far Eastern regions. Its high productivity and adaptability to different conditions make this hybrid attractive to farmers seeking a stable and high yield of corn grain.