Cbd Thc Ratios

CBD-to-THC ratio classification refers to the relative concentration of cannabidiol (CBD) and tetrahydrocannabinol (THC) in a cannabis plant, expressed as a numerical proportion (e.g., 1:1, 2:1, or CBD-dominant). These ratios emerge from genetic inheritance patterns across both parents and are influenced by the presence of CBDA and THCA synthase enzymes in the plant's biochemistry. Breeders working in this category have documented ratio stability across generations when selecting for homozygous or stabilized heterozygous genotypes. Ratio classification ranges from THC-dominant (minimal CBD) through balanced ratios to CBD-dominant varieties (minimal THC), each representing distinct breeding objectives and genetic architecture. Understanding ratio inheritance helps breeders predict offspring cannabinoid profiles and informs seed-to-harvest planning.

Breeders use ratio tracking as a core phenotypic marker when developing cultivars for specific genetic backgrounds. Stable ratios require multi-generation selection and backcrossing to lock in desired cannabinoid enzyme expression patterns.