Terpene Sexual Dimorphism

Terpene sexual dimorphism refers to differences in volatile terpene profiles between male and female cannabis plants of the same strain or cultivar. Female flowers typically develop higher terpene concentrations and more complex profiles than males, likely as an evolutionary adaptation to attract pollinators and optimize seed production. Males often express simpler or more volatile terpene signatures, reflecting their role in pollen distribution rather than seed maturation. This dimorphism has been documented across multiple strain families and appears consistent enough that experienced breeders frequently monitor it during phenotype selection. Understanding these differences is relevant for both seed production strategies and breeding line stabilization.

Breeders working in controlled environments often use terpene dimorphism as a non-invasive phenotyping tool to identify sex earlier in plant development. This trait also informs decisions about which males to select for breeding, since male terpene expression may correlate with vigor or secondary metabolite production in offspring.