No effect on other
AM 120 treated Sweetbay Magnolia grown in a greenhouse for 16 weeks had on average 30.6 % (ns) more mycorrhizal colonization compared to the untreated control. AM 120 had most effect 8 weeks after planting.
indoor, greenhouse, silica sand: sandy loam 2:1 substrate, low soil phosphorous concentration
Sweetbay magnolia, Magnolia virginiana
Mixed with soil
At time of sowing
Performance of Mycorrhizal Products Marketed for Woody Landscape Plants
Journal of Environmental Horticulture