Effects of Glomus fasciculatum or Glomus mosseae on Growth of Liriodendron tulipifera under High Fertility

Liriodendron tulipifera L. seedlings were grown under greenhouse conditions and inoculated with the endomycorrhizal fungi Glomus fasciculatum (Thaxter) Gerdemann & Trappe or G. mosseae (Thaxter) Gerdemann & Trappe. Inoculated and non-inoculated plants were grown in highly fertile medium of perlite : sphagnum peat moss : loam soil (2:2: 1, by volume with 120 mg/l NO3, 53 mg/l P, 130 mg/l K, and 12 mg/l NH4) and were watered as needed with nutrient solution (516.6 mg/l KNO3, 367.6 mg/l NH4NO3, and 0.124 ml/1 of 75% H3PO4). Both fungal species successfully promoted plant growth under these conditions, but G. mosseae tended to be more effective at promoting growth.