12 12 Light Cycle

The 12/12 light cycle refers to an equal photoperiod of 12 hours light and 12 hours darkness, commonly used in cannabis cultivation to trigger and maintain flowering. This schedule mimics the natural day-length changes that cannabis plants encounter as seasons shift toward autumn. The 12/12 cycle is not a terpene itself, but rather an environmental factor that influences terpene expression and cannabinoid development during the flowering phase. Breeders and cultivators often employ this timing to study how specific genetics respond to consistent photoperiods, which can affect the volatile compound profiles that emerge during maturation. Lineage documentation frequently notes 12/12 protocols when characterizing strain phenotypes, as terpene ratios may shift under different lighting schedules.

Breeders use standardized 12/12 light cycles to create reproducible flowering conditions, allowing accurate phenotype comparison across seed lots and generations. Controlled photoperiods help isolate genetic expression from environmental noise, supporting more reliable trait documentation for breeding records.