Uvb Light Spectrum

UVB light spectrum refers to ultraviolet radiation wavelengths between 280-320 nanometers, a component of natural sunlight that reaches cannabis plants in outdoor cultivation. While not a terpene itself, UVB exposure influences secondary metabolite production in cannabis plants, including some volatile compounds and resin composition. Research in cannabis horticulture suggests UVB radiation may affect plant morphology and cannabinoid/terpene profiles, though mechanisms remain under investigation. Indoor cultivators often debate UVB supplementation strategies, with some using specialized bulbs during flowering phases. Understanding UVB's role in plant physiology is relevant for breeders seeking to optimize cultivation environments and select for stable phenotypes across different light conditions.

Breeders working on environmental stability and phenotype consistency often evaluate how cultivars respond to varying UVB exposure, as this can influence resin production and plant structure. Selecting for UVB-resilient genetics may be relevant for outdoor or mixed-light breeding programs.