Table 2.
Results of nested ANOVAs (F ratios and significance levels) conducted to detect the effects of the functional group (grasses vs. composite forbs) or species, N: P supply ratio, and their interaction on plant traits. Significance levels:***, P < .001; **, P < .01; *, P < .05; no symbol, P > .05
| Source | df | M A (g) | M B (g) | Leaf area (mm2) | SLA (mm2/g) | Leaf N (mg/g) | Leaf P (mg/g) | Root N (mg/g) | Root P (mg/g) | Leaf N:P | Root N:P |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Functional group | 1 | 158.80*** | 128.19*** | 108.99*** | 20.74*** | 0.47 | 41.65*** | 53.07*** | 6.49* | 30.04*** | 33.43*** |
| Species [Functional group] | 4 | 0.46 | 0.89 | 0.50 | 5.43** | 1.36 | 3.77** | 8.26*** | 1.80 | 4.26** | 0.33 |
| N:P supply ratio | 4 | 10.60*** | 8.80*** | 10.77*** | 4.08** | 4.05** | 11.08*** | 5.23** | 5.56** | 11.61*** | 6.09** |
| adj. R 2 | 0.68 | 0.63 | 0.61 | 0.39 | 0.13 | 0.46 | 0.52 | 0.21 | 0.47 | 0.34 |