Table 1: Stem diameter, colonization, spore density, in Libidibia ferrea plants, in the field, inoculated or non-inoculated with arbuscular mycorrhizal fungi (AMF), 13 months after transplanting, in Petrolina, Brazil.

Variable Inoculation Treatment
Control A. longula C. etunicatum G. albida
Stem diameter (mm) 24.6 b 32.0 a 29.7 ab 33.2 a
Colonization (%) 90.7 a 92.3 a 92.2 a 90.5 a
Spore density (50 g soil-1) 42.0 b 57.5 a 55.2 a 38.2 b