Carotenoids Color Family

Carotenoids are lipophilic pigments responsible for yellow, orange, and red hues in cannabis flowers and foliage. These compounds are synthesized in chloroplasts and accumulate alongside chlorophyll during vegetative growth, becoming more visible as chlorophyll degrades during late flowering and senescence. Carotenoid expression is influenced by genetics, light exposure, temperature stress, and nutrient availability. The carotenoid family includes β-carotene, lycopene, and xanthophyll compounds, each contributing distinct coloration phenotypes. Breeders studying carotenoid-dominant cultivars document these traits in breeding logs to track color stability across generations and environmental conditions.

Cannabis breeders select for carotenoid expression to develop cultivars with consistent orange, yellow, or rust-toned flowers, often pairing these traits with specific terpene profiles. Understanding carotenoid genetics helps breeders predict color outcomes and maintain visual consistency across seed lines, particularly in photoperiod-sensitive and auto-flowering varieties.