Citral Terpene Expression

Citral is a naturally occurring acyclic monoterpene composed of two isomers—geranial and neral—commonly found across Cannabis sativa cultivars and many other plant families. In cannabis genetics, citral expression is often tagged as contributing to lemony, bright, and sometimes grassy aromatic profiles, though volatile compound profiles vary significantly by cultivar and environmental conditions. Lineage records frequently report citral-forward phenotypes in certain Haze, Thai, and Citrus-derived breeding lines, where it appears alongside limonene and myrcene. Citral concentration and expression are influenced by genetic background, growing conditions, harvest timing, and post-harvest handling. Breeders working in aromatic trait selection have historically used citral-heavy cultivars as parent stock when targeting bright, uplifting sensory profiles in new crosses.

Breeders select for citral expression by crossing known citral-forward parent plants and phenotyping offspring for consistent lemon and citrus aromatics across generations. Citral-dominant genetics are often retained in breeding programs focused on terpene diversity and distinctive flavor/aroma marketing categories.