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Using Mycorrhizae for Cannabis Production

Using Mycorrhizae for Cannabis Production Professor DeBacco What is Mycorrhizae? “Myco” – “rhiza” literally means “fungus” – “root” and describes the mutually beneficial relationship between the plant and root fungus. Mycorrhizal fungal filaments in the soil colonize plant roots to improve nutrient and water absorption greater than the roots can without this symbiotic relationship. Approximately 95 percent of plant species on the planet form a symbiotic relationship with mycorrhizal fungi. Mycorrhizae Products and Inoculations Mycorrhizae can be found added to many products and there are even products that contain concentrated levels for grower specific additions. This is due to customer demand and the stated benefits this fungus can have on plants. Mycorrhizae Word of Caution Cannabis grown in mycorrhizae inoculated soils with Cd, Ni, and Cr(VI)to… “significantly enhanced the translocation of all the three metals from root to shoot. The possibility to increase metal accumulation in shoot is very interesting for phytoextraction purpose, since most high producing biomass plants, such as non-mycorrhized hemp, retain most heavy metals in roots, limiting their application.” Reference: Citterio, S., Prato, N., Fumagalli, P., Aina, R., Massa, N., Santagostino, A., ... & Berta, G. (2005). The arbuscular mycorrhizal fungus Glomus mosseae induces growth and metal accumulation changes in Cannabis sativa L. Chemosphere, 59(1), 21-29. Mycorrhizae Benefits to Cannabis In growing substrates that are heavily amended and typically aggressively fed through out the growing cycle the benefits of adding mycorrhizae are likely reduced below economic return levels. While no harm will come from adding this fungus growers must determine if it is worth the added cost when it comes to return on investment. Link to Lecture Slides: https://drive.google.com/file/d/1ONJG... *Due to the description character limit the full work cited for "Using Mycorrhizae for Cannabis Production" can be viewed at... https://drive.google.com/file/d/1BsVw...