Harvest Induced Volatiles

Harvest-Induced Volatiles (HIVs) refer to aromatic compounds that emerge or shift significantly during the drying and curing process after harvest, rather than being present in the live plant at peak ripeness. These secondary metabolites—including various terpenes and their oxidation products—develop as a result of enzymatic activity, microbial action, and chemical degradation during post-harvest handling. Cannabis cultivators and breeders have long observed that strains display markedly different aromatic profiles after cure compared to fresh-cut material, a phenomenon increasingly attributed to HIV expression. Understanding which genetic lines tend toward desirable cure-driven aroma development has become relevant to breeding programs focused on aromatic complexity and consumer preference consistency.

Breeders working in this category track how parent lines express aroma changes during standard drying and curing protocols, selecting for genetics that develop preferred terpene combinations post-harvest. Selective breeding for stable HIV expression can help stabilize the sensory outcome of a strain across multiple harvests and growing conditions.