Terpene Compounds

Terpene compounds are volatile aromatic molecules produced in cannabis resin glands alongside cannabinoids. These hydrocarbons form the chemical basis of plant aroma and flavor, with over 200 identified in cannabis. Major terpenes include myrcene, limonene, pinene, and caryophyllene, each with distinct chemical structures and sensory profiles. Terpene ratios and combinations vary widely across cultivars and are influenced by genetics, environmental conditions, and harvest timing. Understanding terpene chemistry is foundational to breeding programs, quality assessment, and seed preservation efforts.

Breeders select parent plants partly on terpene profiles, as these traits show moderate heritability and phenotypic consistency across generations. Terpene expression can be used as a breeding marker to stabilize desired aroma characteristics in F1 hybrids and inbred lines.