Terpene Expression

Terpene expression refers to the phenotypic display of volatile aromatic compounds in cannabis plants, shaped by both genetic potential and environmental conditions. Breeders recognize that identical genetics can produce markedly different terpene profiles depending on temperature, light spectrum, soil composition, and harvest timing. This variability is central to cannabis breeding work, as terpene production involves complex enzymatic pathways controlled by multiple genes. Understanding terpene expression helps breeders stabilize desirable aromatic traits across generations and predict how a strain may perform in different cultivation settings.

Breeders working with terpene expression focus on selecting parent plants that consistently produce target compounds like limonene, myrcene, or pinene, then stabilizing these traits through successive generations. Environmental documentation during breeding trials is critical, as terpene ratios can shift substantially between indoor and outdoor cultivation or across seasons.