"Breeder seed" means seed for hybrid production that is seed of male sterile, maintainer, and restorer lines maintained by the breeder.

"Commercial hybrid" means seed that is planted for any use except seed production utilizing hybrid seed.

"Foundation seed" means seed for hybrid production that is seed of male sterile, maintainer, and restorer lines produced from breeder or foundation seed.

"Hybrid seed" means seed that is the first generation of seed of a cross produced by controlling the pollination and by combining two or more lines, varieties, or species.