The effect of irrigation on shoot extension (SE), trunk caliper (TC), percent VAM fungal infection (% VAM), and mycorrhizal root length density (MRLD) of Argentine mesquite, inoculated or noninoculated (+ or -) with Glomus intraradices 6 and 12 months after transplanting.
| SE (cm) | TC (mm) | % VAM | MRLD | |
|---|---|---|---|---|
| Irrigated | ||||
| 6 months | ||||
| (+) VAM | 151.2+25.0z | I6.5±3.3 | 4.4+2.5 | 4.0+1.9 |
| (-) VAM | 177.8+30.15 | 16.7+1.9 | 0.0 | 0.0 |
| 12 months | ||||
| (+) VAM | 567.3+135.4 | 45.7±14.7 | 28.9±8.6 | 42.9±14.5 |
| (-) VAM | 669.6±105.7 | 47.9±7.9 | 18.7±7.9 | 24.5±7.3 |
| Nonirrigated | ||||
| 6 months | ||||
| (+) VAM | 89.7+9.5 | 13.7+2.4 | 3.2+2.3 | 1.8±1.8 |
| (-) VAM | 122.0+27.7 | 14.7±1.4 | 0.0 | 0.0 |
| 12 months | ||||
| (+) VAM | 117.7±9.0 | 29.8±11.8 | 4.2±2.2 | 2.3±l.2 |
| (-) VAM | 146.0±19.6 | 31.7+8.4 | 7.1±3.1 | 3.5+1.0 |
z Mean values±SE, n = 12 and 3 for growth and mycorrhizal data, respectively.