Table II. Results of ANOVAs for S. macrophylla grown at ambient (40 Pa) or elevated (70 Pa) CO2 partial pressure, in fertilized or unfertilized soil, and at high or low water supply.
For each treatment combination, n = 5. Significance tests for the three-way interaction terms are not shown. Statistically significant results are shown in boldface. Units are as in Table I.
| Parameter | [CO2] | Water | Nutrient | [CO2] × Water | [CO2] × Nutrient | Water × Nutrient |
| Log10MF | F = 15.4P < 0.001 | F = 37.1P < 0.001 | F = 249.6P < 0.001 | F = 0.3 P = 0.61 | F = 1.6 P = 0.22 | F = 19.5P < 0.001 |
| Log10ET | F = 0.0 P = 0.83 | F = 77.1P < 0.001 | F = 152.0P < 0.001 | F = 0.1 P = 0.76 | F = 0.9 P = 0.36 | F = 24.4P < 0.001 |
| WP | F = 88.3P < 0.001 | F = 16.0P < 0.001 | F = 126.9P < 0.001 | F = 4.0 P = 0.05 | F = 9.1P < 0.01 | F = 2.8 P = 0.11 |
| Log10NF | F = 2.8 P = 0.11 | F = 46.8P < 0.001 | F = 304.2P < 0.001 | F = 0.3 P = 0.59 | F = 1.2 P = 0.27 | F = 13.2P < 0.01 |
| [N] | F = 38.1P < 0.001 | F = 4.6P < 0.05 | F = 26.3P < 0.001 | F = 0.4 P = 0.55 | F = 1.3 P = 0.26 | F = 2.1 P= 0.16 |
| δ15N | F = 3.1 P = 0.09 | F = 11.6P < 0.01 | F = 2.4 P = 0.13 | F = 5.5P < 0.05 | F = 4.2P < 0.05 | F = 16.5P < 0.001 |
| gs | F = 20.4P < 0.001 | F = 103.0P < 0.001 | F = 0.3 P = 0.61 | F = 16.2P < 0.001 | F = 0.2 P = 0.63 | F = 0.7 P = 0.42 |
| A | F = 37.2P < 0.001 | F = 84.3P < 0.001 | F = 14.4P < 0.001 | F = 1.3 P = 0.26 | F = 1.5 P = 0.23 | F = 2.5 P = 0.12 |
| pi/pa | F = 3.7 P = 0.06 | F = 105.3P < 0.001 | F = 18.9P < 0.001 | F = 4.7P < 0.05 | F = 2.7 P = 0.11 | F = 0.7 P = 0.41 |
| Δ13C | F = 10.3P < 0.01 | F = 113.1P < 0.001 | F = 164.4P < 0.001 | F = 1.4 P =0.25 | F = 1.4 P = 0.25 | F = 6.3P < 0.05 |