Citral Expression

Citral expression refers to the prominent display of citral terpenes in a cannabis cultivar's volatile compound profile. Citral itself comprises two isomers—geranial and neral—that create lemon, lime, and grapefruit-like aromatic notes. This trait appears across multiple strain families and is often associated with certain Haze, Sativa, and citrus-forward hybrid lineages. Breeders working with high-citral cultivars typically select parent plants showing strong terpene intensity during the flowering and cure phases. Citral expression can vary significantly based on growing conditions, harvest timing, and post-harvest handling, making it a complex trait for consistent breeding programs.

Breeders pursuing citral-dominant profiles often cross plants with established citral markers, as this terpene is heritable but influenced by environmental factors. Consistent citral expression requires attention to phenotype selection, cultivation stress management, and curing protocols to preserve volatile compounds.