Thc Dominant Type I

Type I cannabis plants are classified by their cannabinoid profile, characterized by elevated THC levels relative to CBD. This classification emerged from early cannabinoid research that identified distinct chemotypes based on HPLC and GC-MS analysis. Breeders working in this category developed lines that consistently express high THC synthase activity while maintaining low CBDA production. Type I remains the most common commercial classification globally, encompassing the majority of cultivated strains and breeding programs. The designation reflects observable chemical production rather than effects or potency claims.

Plant breeders select for Type I expression to develop stable cannabinoid profiles in seed lines and clone populations. Understanding Type I genetics helps breeders predict offspring cannabinoid ratios when crossing or backcrossing cultivars.