Uv Stress Terpenes

UV stress terpenes are volatile compounds produced by cannabis plants in response to ultraviolet light exposure, particularly UVB radiation. Rather than a single terpene, this term describes a class of secondary metabolites—including myrcene, limonene, and pinene—that plants upregulate as part of their photoprotective mechanism. Breeders and cultivators have observed that controlled UVB exposure during flowering can increase terpene diversity and concentration in some cultivars, though results vary significantly by genetics. This phenomenon is commonly associated with outdoor cultivation environments and controlled indoor setups designed to simulate natural light spectra. Understanding UV stress responses is relevant to genetic selection work focused on terpene expression and plant resilience traits.

Plant scientists and breeders working in controlled environment agriculture study UV stress terpene production to identify cultivars with stronger photoprotective responses and potentially higher aromatic complexity. Genetic lines showing robust terpene upregulation under UVB stress are of interest for preservation and trait-stacking programs.