Thc Dominant Pathway

THC-dominant pathway refers to cannabis plants that preferentially produce tetrahydrocannabinol (THC) over cannabidiol (CBD) during cannabinoid synthesis. This classification describes the biochemical route plants take when expressing the CBDA synthase enzyme more actively than CBDA-to-CBDA synthase conversion, resulting in higher THC-to-CBD ratios in the final product. Lineage records frequently report that most modern cultivated cannabis varieties follow this pathway, though the exact ratio varies significantly between strains and phenotypes. Understanding this classification is essential for breeders selecting parent material, as the dominant pathway is largely determined by genetic predisposition rather than environmental factors alone.

Breeders working toward THC-dominant cultivars typically select parent plants demonstrating this biochemical pathway across multiple generations to stabilize the trait. Knowledge of pathway dominance helps breeders predict cannabinoid profiles in offspring and avoid accidental CBD-dominant recessive expressions when crossing THC-rich lines.