Myrcene Plasticity

Myrcene plasticity refers to the variability in myrcene expression across cannabis cultivars despite genetic similarities, influenced by cultivation conditions, phenotype selection, and environmental stress. Myrcene, the most abundant monoterpene in many cannabis strains, can shift in concentration and aromatic character—ranging from herbal-earthy to fruity-clove notes—based on growing parameters like temperature, humidity, and harvest timing. This trait is particularly relevant to breeders working in stable F1 or IBL programs, as myrcene-dominant plants may express distinctly different aromatic profiles even from the same seed lot. Understanding myrcene plasticity helps explain phenotypic variation within seed populations and informs cultivation protocols for consistent terpene development.

Breeders targeting consistent myrcene-forward aromatic signatures must account for phenotypic drift and environmental sensitivity. Selecting and stabilizing myrcene expression through multiple generations allows cultivators to predict aromatic outcomes more reliably.