Olfactory Phenotyping

Olfactory phenotyping refers to the systematic classification and documentation of cannabis aroma profiles based on volatile organic compounds (VOCs) and terpene expression. Breeders and researchers use sensory evaluation combined with chemical analysis to map how genetic backgrounds produce distinct scent characteristics across cultivars. This practice emerged as a structured approach to understanding the relationship between genotype and aromatic output, independent of potency or yield metrics. Olfactory phenotyping helps establish breeding targets for consistency, creates language for lineage comparison, and supports germplasm preservation by identifying chemically distinct populations. The practice bridges traditional cultivar naming (often aroma-based) with modern chromatographic data, forming a more reproducible framework for genetics documentation.

Breeders use olfactory phenotyping to select parent plants with stable, heritable aroma traits and to predict offspring scent profiles across generation cycles. This data informs crossing decisions when aroma stability or novelty is a breeding objective, and helps distinguish true-breeding lines from phenotypic variations.