Pigmentation Chemistry

Pigmentation chemistry in cannabis refers to the biochemical processes governing anthocyanin, carotenoid, and chlorophyll expression in plant tissues. These water-soluble and lipid-soluble compounds produce the visual range from deep purples and blues to oranges and reds, particularly visible in flowers and foliage during flowering and senescence. Pigment expression is regulated by genetics, light exposure, temperature stress, and nutrient availability—especially phosphorus and potassium levels. Breeders document pigmentation traits as phenotypic markers useful for strain identification and selective breeding programs. Understanding pigmentation chemistry supports cultivation optimization and provides a framework for studying how environmental factors interact with genetic expression.

Pigmentation traits serve breeders as visible, heritable markers for tracking lineage consistency and phytochemical diversity across generations. Stable pigmentation phenotypes enable reliable cultivar stabilization and help correlate visual traits with terpene and cannabinoid profiles in breeding records.