Cannabidiol Dominant Phenotypes

Cannabidiol-dominant phenotypes are cannabis plants bred to express higher proportions of CBD relative to THC, often in ratios of 1:1, 2:1, or higher CBD to THC. These phenotypes emerge from selective breeding within strains carrying recessive or co-dominant CBD synthase alleles, requiring careful lineage documentation and multi-generation selection. Breeders working in this category often cross CBD-rich cultivars (such as those derived from Cannatonic, Charlotte's Web, or ACDC ancestry) with stable lines to stabilize the trait across offspring. CBD-dominant phenotypes display wide genetic diversity despite the shared cannabinoid profile, reflecting the multiple genetic pathways that produce elevated cannabidiol expression. Commercial seed banks and craft breeders frequently catalog these plants separately due to their distinct cannabinoid production mechanics and cultivation requirement

CBD-dominant phenotypes are foundational to breeding programs focused on cannabinoid ratios and minor cannabinoid expression research. Breeders select for consistent CBD production across generations, using cannabinoid testing to verify offspring stability and refine parental stock selection.