Temperature Cycling

Temperature cycling refers to deliberate fluctuations in growing environment temperatures—typically day-to-night swings or seasonal shifts—used during cannabis cultivation to influence terpene expression and plant structure. Breeders and cultivators working in controlled environments often employ this technique to enhance volatile compound production, as many terpenes are sensitive to thermal stress and respond by increasing in concentration. Temperature cycling does not create new terpenes but can shift the balance and intensity of existing ones already present in a strain's genetic profile. This practice is commonly associated with outdoor and greenhouse cultivation, where natural temperature variation occurs, though some indoor operations replicate these conditions intentionally. The technique's effectiveness varies significantly depending on strain genetics, growth stage, and the spe

Breeders selecting for high terpene expression or specific aromatic profiles often evaluate parental lines under temperature-cycled conditions to identify genotypes that respond robustly to thermal stress. This data informs crosses aimed at producing offspring with more pronounced aroma stability across diverse growing environments.