Bioaccumulation

Bioaccumulation in cannabis refers to the progressive concentration of terpenes and cannabinoids within plant tissues over time, particularly as the plant matures toward harvest. Rather than a single terpene itself, bioaccumulation describes a phenomenon breeders and cultivators observe—where volatile compounds accumulate in resin glands (trichomes) and other tissues, often becoming more concentrated in later flowering stages. Understanding bioaccumulation patterns helps breeders select for strains with stable, robust terpene profiles. Environmental factors, genetics, and harvest timing all influence how efficiently a plant bioaccumulates aromatic compounds. This trait is particularly relevant when developing cultivars intended for consistent flavor and aroma expression.

Breeders working in trait selection often identify parent plants demonstrating strong bioaccumulation capacity, as offspring from these lines tend to develop denser trichome coverage and higher terpene concentrations. Selecting for bioaccumulation efficiency is a key strategy in breeding programs focused on aromatic intensity and cannabinoid consistency.