Phenotype Environmental Interaction
Phenotype-environmental interaction (PEI) refers to how cannabis plants express terpene profiles differently under varying cultivation conditions, even when genetically identical. Temperature, humidity, light spectrum, and soil composition significantly influence which terpenes are produced and in what concentrations. A clone grown indoors may show elevated limonene levels, while the same genetics outdoors might express higher pinene or myrcene dominance. Breeders and cultivators working with established lineages often observe these expression variations, making PEI a critical consideration when stabilizing or reproducing target terpene profiles across growing environments.
Phenotype Environmental Interaction strains
No strains tagged into Phenotype Environmental Interaction yet — they'll appear here as breeders submit lineage records under this terpene.
Phenotype-environmental interaction (PEI) refers to how cannabis plants express terpene profiles differently under varying cultivation conditions, even when genetically identical. Temperature, humidity, light spectrum, and soil composition significantly influence which terpenes are produced and in what concentrations. A clone grown indoors may show elevated limonene levels, while the same genetics outdoors might express higher pinene or myrcene dominance. Breeders and cultivators working with established lineages often observe these expression variations, making PEI a critical consideration when stabilizing or reproducing target terpene profiles across growing environments.
Breeders selecting for specific terpene outcomes must account for environmental variables when evaluating phenotypes and establishing breeding targets. Documenting terpene expression across multiple environments helps identify genetically stable cultivars versus those highly sensitive to cultivation parameters.
Educational reference · Cultivar metadata only · No medical claims