The ectomycorrhizal infection of lateral roots of pin oak (Quercus palustris) seedlings grown in either acidic or alkaline medium and inoculated with live or autoclaved soil from 3 different sites.
Soil pH1 | Site2 | Autoclaved inoculum | % lateral root infection |
---|---|---|---|
Acidic | Forest | No | 77.7 ab3 |
Acidic | Chlorotic | No | 88.9 ab |
Acidic | Non-chlorotic | No | 87.2 ab |
Acidic | Forest | Yes | 0.0 c |
Acidic | Chlorotic | Yes | 0.0 c |
Acidic | Non-chlorotic | Yes | 1.7c |
Alkaline | Forest | No | 77.3 ab |
Alkaline | Chlorotic | No | 71.4 b |
Alkaline | Non-chlorotic | No | 96.6 a |
Alkaline | Forest | Yes | 0.0 c |
Alkaline | Chlorotic | Yes | 0.0 c |
Alkaline | Non-chlorotic | Yes | 0.0 c |
ANALYSIS OF VARIANCE | |||
Model | 0.00014 | ||
Ph | 0.7367 | ||
Site | 0.4220 | ||
Inoculation | 0.0001 | ||
pH*Site | 0.5778 | ||
pH*lnoculation | 0.8215 | ||
Site*lnoculation | 0.5073 | ||
pH*Site*lnoculation | 0.5066 |
↵1 Acidic soil pH = 5.5 and alkaline soil pH = 7.5.
↵2 Soil inoculum from pin oak forest stand, urban chlorotic pin oak trees, and urban non-chlorotic pin oak trees.
↵3 Means (n = 36) in the same column with a different letter are significantly different at the α = 0.05 level using a Fisher’s protected LSD.
↵4 Significance probabilities from the F statistic from an ANOVA. Significant values (P ≤ 0.05) in bold.