Sesquiterpene Accumulation

Sesquiterpene accumulation refers to the selective breeding and expression of C15 volatile compounds in cannabis, including β-caryophyllene, β-myrcene, and humulene. These compounds are heavier than monoterpenes and often become more prominent during late-stage flower maturation and post-harvest curing. Breeders working in this category typically select parent plants showing robust sesquiterpene profiles across multiple generations to stabilize and enhance these traits. Sesquiterpene-dominant cultivars are of particular interest to extraction and concentrate producers, as these compounds contribute to aroma complexity and chemical stability in finished products. Environmental factors—particularly temperature, light intensity, and harvest timing—significantly influence sesquiterpene expression in any given plant.

Breeders target sesquiterpene accumulation through phenotype selection and controlled crosses, as these heavier volatiles remain more stable during storage and processing than lighter monoterpenes. Sesquiterpene profiles serve as reliable chemotaxonomic markers for strain identification and family preservation across seed generations.