Genotype Vs Phenotype Expression

Genotype refers to the genetic blueprint inherited from parent plants, while phenotype describes the observable characteristics—including aroma—that result from both genetics and growing conditions. A cannabis plant's genotype may carry genes for specific terpene production, but environmental factors like temperature, light, soil composition, and harvest timing significantly influence which aromatic compounds are actually expressed. Two clones of the same genetic line grown in different conditions often develop notably different aroma profiles, demonstrating phenotypic variation. Breeders distinguish between these concepts to stabilize desirable aromatic traits across generations, identifying which aromas are genetically fixed versus environmentally dependent. Understanding this relationship helps growers and breeders predict and reproduce specific scent expressions.

Breeders use genotype-phenotype analysis to identify heritable aromatic traits worth stabilizing in seed lines versus transient expressions caused by cultivation variables. Selecting parent plants based on consistent aroma expression across multiple environments helps ensure that desirable scent profiles reliably appear in offspring.