Chemotype Thc Dominant

THC-dominant chemotypes represent cannabis plants where tetrahydrocannabinol (THC) comprises the primary cannabinoid profile, typically with minimal CBD or other minor cannabinoids. This chemotype classification emerged from cannabis breeding documentation and cannabinoid testing practices, reflecting genetic populations selected for high THC expression across generations. Lineage records frequently report THC-dominant plants arising from both landrace selections and intentional breeding programs. The biochemical pathway favoring THC synthesis over CBD production is controlled by genetic factors, particularly around the CBDAS/THCAS enzyme expression. Understanding chemotype categories helps breeders document parentage traits and predict offspring cannabinoid profiles when crossing known genetics.

Breeders working with THC-dominant chemotypes use this classification to selectively pair parents with complementary traits—such as terpene profiles, growth structure, or pest resistance—while maintaining predictable cannabinoid ratios in F1 and subsequent generations. Documenting chemotype in seed stocks ensures transparency in breeding programs and helps growers select starting material aligned