Citral Expressing Phenotypes

Citral-expressing phenotypes are cannabis plants that produce elevated levels of citral, a monoterpene compound that contributes to lemon, lime, and grapefruit aromatic notes. Citral itself is not a single terpene but rather a mixture of two isomers: geranial and neral, which together create bright, fresh citrus character. These phenotypes commonly emerge from breeding lines with Lemonhead, Lemon Haze, or Citral-forward parent genetics. The expression of citral is influenced by both genetic predisposition and cultivation factors including temperature and light exposure during flowering. Breeders working in the citrus category frequently select for citral-dominant chemotypes to stabilize these aromatic profiles across generations.

Breeders pursuing citrus-forward cultivars prioritize citral-expressing phenotypes for flavor and aroma stability. Selecting and backcrossing high-citral individuals helps establish consistent terpene profiles in seed lines and stabilized varieties.