Plant Scoring Systems

Plant scoring systems are standardized frameworks breeders and researchers use to evaluate cannabis phenotypes across morphology, vigor, resin production, and aroma profiles. These systems typically employ numerical or categorical scales—often 1–10 or similar grids—to document traits consistently across generations and seed lots. Common scoring dimensions include plant structure, leaf shape, flowering time, terpene intensity, and visual cannabinoid markers like trichome density. Rigorous scoring enables breeders to identify stable, repeatable phenotypes and track genetic drift within cultivars. Documentation practices vary widely across seed producers; some follow informal visual notes, while others employ detailed phenotype libraries tied to breeding records.

Breeders rely on scoring systems to maintain phenotypic consistency, select parent plants for crosses, and communicate trait expectations to other producers. Standardized scoring also supports seed bank inventory management and helps distinguish between phenotypic variation and true genetic instability.