The scientists, breeders and institution builders who developed new crop varieties and cultivars through selection, hybridization and the applied genetics of crop plants, spanning classical Mendelian and pure-line breeding, the wheat, rice and maize breeding programs of the Green Revolution, hybrid seed development, plant genetic resources and germplasm conservation, and the modern molecular mapping and gene-identification work that supports variety development. Distinct from Plant Biotechnology, gathered separately for figures whose defining work is a genetic engineering, transformation or gene-editing technique rather than a bred variety itself, and from Botany and Plant Physiology, gathered for figures studying how a plant works rather than developing a named crop variety.