Myrcene Dominant Phenotypes

Myrcene-dominant phenotypes are cannabis plants where myrcene comprises a notably higher percentage of the total terpene profile, often 50% or greater. This monoterpene is among the most abundant terpenes across cannabis genetics and is commonly associated with earthy, herbal, and sometimes fruity or clove-like aromatic notes. Lineage records frequently report myrcene dominance in classic Indica-leaning and Afghani-derived cultivars, though the trait appears across diverse breeding backgrounds. Myrcene levels can shift based on harvest timing, growing conditions, and phenotypic expression within a single strain family, making it an important marker for breeders seeking consistency in aroma profiles.

Breeders working in this category often select for myrcene-dominant plants to stabilize particular aroma signatures across seed generations. Understanding myrcene expression helps cultivators and breeders predict how environmental factors—light, temperature, soil chemistry—may influence terpene ratios during cultivation.