Secondary Terpene Surge

Secondary Terpene Surge refers to elevated expression of minor volatile compounds that emerge during late-stage flower development, often after primary terpenes (limonene, myrcene, pinene) have already established baseline profiles. This phenomenon is commonly observed in cultivars with extended flowering windows or those expressing complex genetic terpenoid pathways. Breeders working in this category have noted that environmental factors—particularly temperature fluctuation and light duration in final weeks—can amplify trace compounds like caryophyllene, humulene, and linalool beyond their early-flower signatures. Secondary surges create layered aromatic complexity and are frequently documented in heritage lineages and modern polyhybrid crosses. Understanding this trait requires careful phenotype tracking across multiple harvest windows within a single grow cycle.

Breeders selectively maintain lines exhibiting pronounced secondary terpene surges to develop cultivars with evolving sensory profiles. This trait is particularly valued in preservation breeding, as it demonstrates genetic stability and environmental responsiveness across growing conditions.