Light Spectrum Pigmentation

Light spectrum pigmentation refers to the expression of plant pigments—including chlorophylls, carotenoids, and anthocyanins—in response to light wavelengths during cultivation. In cannabis, these pigments influence leaf and flower coloration, ranging from deep greens to purples, reds, and blues, primarily driven by environmental conditions rather than genetics alone. Breeders and cultivators often observe that cooler temperatures, UV exposure, and specific light spectra can intensify anthocyanin production, creating visually distinct phenotypes within the same genetic line. Understanding light spectrum pigmentation helps breeders document strain consistency and stability across growing environments, though the same genetics may display different colors under different light conditions.

Breeders working with light spectrum pigmentation track how genetics predispose plants to pigment expression under specific wavelengths and temperatures. This trait serves as a visual marker for phenotype consistency and can help identify stable cultivars when grown under controlled light conditions.