Mycorrhizal Fungi

Mycorrhizal fungi form symbiotic relationships with plant root systems, facilitating nutrient uptake and water absorption in exchange for plant-produced sugars. In cannabis cultivation, these fungal associations—particularly arbuscular mycorrhizal (AM) fungi and ectomycorrhizal varieties—are increasingly studied for their role in soil biology and plant vigor. Breeders and cultivators working with living soil systems often observe plants colonized by mycorrhizal networks display improved nutrient cycling and stress resilience. The presence of mycorrhizal associations is not a heritable trait in seeds themselves, but rather depends on soil microbiome composition and cultivation practices. Understanding mycorrhizal ecology is relevant for growers developing regenerative and organic production protocols.

While mycorrhizal partnerships cannot be bred into cannabis genetics directly, cultivators selecting parent plants for organic and living-soil cultivation often prioritize genetics historically grown in mycorrhizal-rich environments. Breeders working in regenerative agriculture systems document observations of plant phenotypes under mycorrhizal colonization to refine cultivation protocols rather t