Light Exposure Degradation

Light exposure degradation refers to the breakdown of cannabinoids and terpenes when cannabis plant material is exposed to UV, visible light, or direct sunlight over time. This photochemical process is a significant consideration in cultivation, harvest timing, and storage protocols. Breeders and cultivators monitor light conditions throughout the growth cycle and post-harvest handling to preserve volatile compounds. Environmental control—particularly managing light intensity and spectrum during late flowering and curing—directly impacts the final chemical profile of harvested material. Understanding degradation pathways helps breeding programs develop cultivars with more stable terpene expressions under variable light conditions.

Breeders working on preservation traits often select for plant genotypes that produce more robust secondary metabolite profiles resistant to photodegradation. Cultivation technique documentation and strain stability testing under controlled light regimens inform breeding decisions for commercial and research applications.