Soil Biology Genetics

Soil biology genetics refers to the microbial and fungal communities that develop in growing substrates and their influence on cannabis plant phenotypes. While terpene production is primarily governed by plant genetics and environmental factors like light and temperature, some cannabis breeders hypothesize that rhizosphere microbes—particularly mycorrhizal fungi and beneficial bacteria—may indirectly affect secondary metabolite expression through nutrient availability and plant signaling pathways. This remains an emerging area of cannabis cultivation research rather than a proven terpene mechanism. Understanding soil microbiology is relevant to organic and regenerative breeding programs seeking reproducible cultivation conditions. However, terpene profiles are ultimately determined by plant genotype and grow environment, not microbial communities alone.

Breeders working with organic and living-soil methodologies track soil biology as a cultivation variable that may influence consistency across generations. Microbial diversity is sometimes managed to standardize phenotypic expression in breeding trials, though direct causation between specific microbes and terpene output remains speculative.