Biochemical Phenotypes

Biochemical phenotypes refer to the observable chemical profiles expressed by cannabis plants, determined by the interaction of genetics and growing conditions. These include cannabinoid ratios (THC-dominant, CBD-dominant, or balanced), terpene profiles, and flavonoid compositions. Breeders and cultivators distinguish between phenotypes within the same genetic line because identical seeds can express different biochemical outcomes depending on environment, timing, and cultivation practices. Understanding biochemical phenotypes is foundational to cannabis breeding, as it allows growers to identify and stabilize desired chemical expressions across generations. Documentation of these phenotypes helps the breeding community track which genetic combinations reliably produce specific chemical signatures.

Breeders select for stable biochemical phenotypes to create predictable cultivars within seed lines. Identifying and stabilizing a particular cannabinoid or terpene expression across multiple plants requires multi-generational testing and careful environmental control.