Type 3 Cbd Dominant

Type 3 CBD-dominant cannabis plants express cannabinoid profiles where CBD levels meet or exceed THC levels, a trait governed by a recessive allele at the CBDA synthase gene locus. These plants typically produce minimal psychoactive effects relative to high-CBD content, making them botanically distinct from Type 1 (THC-dominant) and Type 2 (balanced) chemotypes. The Type 3 classification emerged from early cannabinoid research by de Meijer and others studying chemotype inheritance in cannabis populations. Breeding programs developed stable Type 3 lines by selecting and backcrossing plants expressing the CBD synthase enzyme preferentially over THC synthase. Type 3 genetics remain foundational in contemporary hemp and CBD-focused breeding work across regulated markets.

Breeders working in the Type 3 category select for homozygous recessive cannabinoid synthase alleles to stabilize CBD dominance across generations. Understanding Type 3 genetics allows cultivators to produce consistent cannabinoid profiles for research, breeding programs, and regulated cultivation where THC thresholds are legally enforced.