Terpene Expression Timeline

Terpene Expression Timeline refers to the temporal patterns of volatile compound development across a cannabis plant's growth cycle. Different terpenes emerge, peak, and sometimes diminish at distinct developmental stages—from vegetative growth through flowering and final maturation. Breeders and researchers track these expression windows to understand when specific aromatic profiles stabilize and how environmental conditions (light, temperature, humidity) influence timing. This framework helps explain why harvest timing affects perceived aroma and terpene composition, and why phenotypes within the same genetic line may show different profiles depending on cultivation duration.

Breeders working in terpene stability selection use expression timeline data to identify cultivars that lock in desired compounds early or maintain them consistently through finish. Understanding terpene onset and degradation patterns informs crossing strategies aimed at extending floral-stage terpene production or achieving predictable aroma profiles across multiple growing cycles.