Major Terpenes

Major terpenes are the primary volatile organic compounds that define a cannabis strain's aromatic profile and are typically present in concentrations above 0.05% by weight. The most common major terpenes include myrcene, limonene, caryophyllene, pinene, and linalool, each contributing distinct scent characteristics and potential effects on the plant's phenotype. Terpene expression varies significantly based on genetics, cultivation conditions, harvest timing, and post-harvest handling. Understanding major terpene profiles is essential for breeders selecting parent plants and for documenting strain authenticity across generations. Lineage records frequently note dominant terpene profiles as a key marker of cultivar identity alongside cannabinoid ratios.

Breeders actively select for specific major terpene combinations to stabilize flavor families, establish market differentiation, and maintain consistency across seed batches. Terpene profiling has become a standard tool in breeding programs to validate F1 hybrids and confirm genetic purity in stabilized lines.