Biomass partitioning and root to shoot ratio of 7-month-old pin oak (Quercus palustris) seedlings grown in either acidic or alkaline soil medium and inoculated with live or autoclaved soil from 3 different sites.
Soil pH1 | Site2 | Autoclaved inoculum | Shoot mass(g) | Root mass(g) | Total mass(g) | Root/shoot |
---|---|---|---|---|---|---|
Acidic | Forest | No | 1.63 a | 5.32 ab3 | 6.97 a | 3.23 a |
Acidic | Chlorotic | No | 1.73 a | 5.31 ab | 7.06 a | 3.01 a |
Acidic | Non-chlorotic | No | 2.00 a | 5.57 a | 7.60 a | 2.99 a |
Acidic | Forest | Yes | 1.13 a | 3.09 cd | 4.27 a | 2.62 a |
Acidic | Chlorotic | Yes | 1.73 a | 3.33 bcd | 5.09 a | 2.03 a |
Acidic | Non-chlorotic | Yes | 2.03 a | 4.68 abc | 6.77 a | 2.31 a |
Alkaline | Forest | No | 1.13 a | 2.15 d | 3.34 a | 1.92 a |
Alkaline | Chlorotic | No | 1.53 a | 3.41 bcd | 4.98 a | 2.22 a |
Alkaline | Non-chlorotic | No | 1.73 a | 4.40 abc | 6.18 a | 2.47 a |
Alkaline | Forest | Yes | 1.37 a | 3.28 bcd | 4.69 a | 2.22 a |
Alkaline | Chlorotic | Yes | 1.57 a | 4.17 abcd | 5.80 a | 2.66 a |
Alkaline | Non-chlorotic | Yes | 1.57 a | 4.54 abc | 6.16 a | 2.76 a |
Means | 1.60 | 4.10 | 5.74 | 2.54 | ||
ANALYSIS OF VARIANCE | ||||||
Model | 0.40574 | 0.0459 | 0.0608 | 0.4138 | ||
PH | 0.1616 | 0.0376 | 0.0411 | 0.1718 | ||
Site | 0.0411 | 0.0415 | 0.0233 | 0.8376 | ||
Inoculation | 0.7018 | 0.2222 | 0.2834 | 0.3782 | ||
pH*Site | 0.8183 | 0.5821 | 0.7613 | 0.2738 | ||
pH*lnoculation | 0.5549 | 0.0074 | 0.0196 | 0.0247 | ||
Site*lnoculation | 0.9273 | 0.9705 | 0.9798 | 0.9796 | ||
pH*Site*lnoculation | 0.4652 | 0.4914 | 0.4377 | 0.8844 |
↵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.