Primary Terpene Dominance

Primary terpene dominance refers to the classification system identifying which single terpene compound achieves the highest concentration in a strain's aromatic profile. This taxonomic approach helps breeders and researchers categorize cannabis genetics by their chemotype signature, since terpene expression varies significantly across cultivars even within the same strain family. Common primary terpenes include myrcene, limonene, caryophyllene, and pinene—each associated with distinct aromatic signatures and breeding lineages. Understanding primary dominance is foundational to phenotype selection, as terpene profiles can shift across growing conditions and plant maturity stages. This classification enables more precise genetic documentation and helps identify which parent plants are likely to express desired aromatic traits in offspring.

Breeders use primary terpene dominance as a selection criterion when targeting specific aromatic outcomes and genetic stability. Tracking dominant terpenes across generations helps establish which crosses reliably produce consistent chemotypes, supporting more predictable breeding programs.