Temperature Range Influence

Temperature range influence describes how cultivation environment—particularly day/night temperature differentials and seasonal fluctuations—affects terpene expression and volatile compound profiles in cannabis. Cooler nights commonly shift terpene ratios toward fruity and floral notes, while sustained heat tends to favor spicy, woody, or diesel-range aromatics. This phenomenon occurs because terpene synthesis and degradation rates respond to metabolic temperature thresholds throughout flower development. Breeders and cultivators working in controlled environments document these shifts as a reproducible production variable rather than a fixed strain trait. Understanding temperature's role helps explain why identical genetics can express notably different aromatic profiles across different growing regions or seasons.

Breeders selecting for specific aroma targets often manipulate temperature regimens during controlled crosses to identify which parent lines maintain terpene stability under variable conditions. This trait-testing informs decisions about whether a cultivar is suited for outdoor, greenhouse, or climate-controlled indoor production.