AM 120 treated Trident Maple grown in a greenhouse for 16 weeks had on average 39 % less mycorrhizal colonization compared to the untreated control. AM 120 had most negative effect (significant) 4 weeks after planting.
indoor, greenhouse, silica sand: sandy loam 2:1 substrate, low soil phosphorous concentration
Trident maple, Acer buergerianum
Mixed with soil
At time of sowing
Performance of Mycorrhizal Products Marketed for Woody Landscape Plants
Journal of Environmental Horticulture