Uv Light Secondary Metabolites

UV light secondary metabolites represent compounds plants produce in response to ultraviolet radiation exposure, functioning as natural photoprotective mechanisms. In cannabis cultivation, these metabolites—including flavonoids, phenolic compounds, and certain terpene precursors—accumulate when plants encounter UV-B or UV-A wavelengths. Breeders and researchers have documented variability in how different cultivars respond to UV stress, with some lineages showing measurable increases in secondary compound production. These metabolites are distinct from primary terpenes but often co-occur with them in the plant's resin profile. Understanding UV-induced secondary metabolism is relevant to controlled environment horticulture and breeding programs focused on phytochemical expression.

Breeders working with controlled-environment systems use UV exposure as a potential variable to explore secondary metabolite accumulation and phenotypic expression across genetic backgrounds. Lineage selection focused on UV-stress resilience or UV-responsive compound production remains an emerging area in cannabis genetics research and propagation.