KRASTONSKY POPPING 403 — mid-late maturing, three-row hybrid corn intended for popcorn production. Medium-height plant with narrow leaves and medium anthocyanin coloration of the first leaf sheath. Leaf apex is rounded, and leaf is curved with a medium-sized angle between leaf blade and stem. Ear has medium density and weak anthocyanin coloration, and tassel is characterized by medium length and large angle between main axis and lateral branches. Kernel is medium length, slender, and weakly conical, with absent anthocyanin coloration of the cob core. Kernel type is popcorn, yellow-orange, with high popped kernel yield — 98.9%. Vegetation period of the hybrid is 115–118 days, allowing its use in various regions. Yield reaches an average of 37.7 centners per hectare, making this hybrid attractive for commercial cultivation. Plant features such as medium height, anthocyanin root and silk coloration, and tassel shape and structure ensure good adaptation and stable yield. Hybrid KRASTONSKY POPPING 403 is widely used in popcorn production due to its high kernel popping rate and kernel quality. Its kernels possess optimal moisture and shape for effective popping, ensuring high yield of finished product. This hybrid is recommended for cultivation in various climatic zones, confirming its versatility and reliability in agronomic use.