Genotype Vs Phenotype

Genotype and phenotype represent two fundamental concepts in cannabis breeding and genetics. Genotype refers to the actual genetic code inherited from parent plants—the DNA blueprint that remains constant throughout a plant's life. Phenotype describes the observable characteristics that result from genotype interacting with growing conditions, nutrients, light, temperature, and other environmental factors. A single genotype can produce multiple phenotypes depending on cultivation practices, making phenotype expression critical for breeders selecting stable lineages. Understanding this distinction helps explain why two clones from identical genetics may display different aromas, yields, or plant structures when grown in different environments.

Breeders distinguish between genotype stability (which traits breed true across generations) and phenotype consistency (which traits remain visually/chemically similar under standard conditions). Selecting for stable, reproducible phenotypes within a desired genotype is essential for developing reliable cultivars that perform predictably across multiple grows.