Breeders look for various phenotypes including:
Variations in cannabinoid concentrations (e.g., THC and CBD levels).
Different flavor profiles created by aromatic compounds like terpenes.
Traits contributing to the "entourage effect," where compounds interact to produce a unique experience.
Visual appearance of the plant, such as color and bud structure.
Time to maturation, affecting the production schedule.
Resilience to pests, fungus, and environmental conditions.
Other plant features like structure, resin production, and trichome appearance.