Uv Light Degradation

UV light degradation refers to the photochemical breakdown of cannabinoids and terpenes when cannabis plant material is exposed to prolonged ultraviolet radiation. This process occurs both in living plants under intense UV exposure and in dried/cured flower stored under UV-rich conditions. Breeders and cultivators study UV sensitivity as part of preservation protocols, since THC, CBD, and aromatic compounds degrade into secondary metabolites under UV stress. Understanding this degradation pathway informs storage best practices and helps identify which genetic lines show greater photostability. UV degradation is distinct from controlled UV-B application, which some cultivators deliberately use as a plant stressor. Documentation of UV sensitivity across lineages remains limited but increasingly relevant to seed banking and long-term cannabis preservation strategies.

Breeders working on preservation-focused cultivars investigate UV photostability as a trait for seed longevity and stored biomass integrity. Genetic lines showing greater resistance to UV-induced degradation may be preferred for breeding stable, long-shelf-life phenotypes in research and commercial seed banking contexts.