Effect of arbuscular mycorrhizal fungal (AMF) inoculum derived from under canopy rhizosphere of trees at remnant Sonoran Desert or nearby residential sites in the Phoenix metropolitan area on carbon assimilation (A) and specific root respiration (Rsp) of three southwest U.S. landscape trees.
| Tree/AMF inoculum | A (μmol/m2/s) | Rsp (μmol/m2/s/g) |
|---|---|---|
| Acacia smallii | ||
| Sonoran Desert | 16.2 az | 0.36 b |
| Residential | 17.7 a | 0.46 b |
| Non-AMF control | 9.5 b | 1.60 a |
| Fraxinus uhdei | ||
| Sonoran Desert | 6.8 a | 0.07 b |
| Residential | 6.9 a | 0.11 ab |
| Non-AMF control | 8.2 a | 0.13 a |
| Parkinsonia microphylla | ||
| Sonoran Desert | 10.4 a | 1.24 a |
| Residential | 11.8 a | 0.86 a |
| Non-AMF control | 9.4 a | 1.05 a |
↵z Values are treatment means, n = 5. Values followed by the same letter within a column by species are not significantly different, α < 0.05 Tukey-Kramer mean separation.