Table 2.
Variance partitioning (Multivariate redundancy analysis RDA) of the effect of site (A, B, C, D) and shoot biomass on the metabolome of Jacobaea vulgaris. Depicted are marginal (explanatory variable alone) and conditional effects. The conditional effects were calculated by using one factor as main factor and the other factor as covariable indicate by /. For each combination degrees of freedom (df) and adjusted R2 values and P-values from Monte Carlo permutation test (999 permutations) are depicted. Significant factors are indicated in bold
| Factor | df | Adjusted R2 | P-value |
|---|---|---|---|
| Site | 4 | 0.09 | 0.001 |
| Shoot biomass | 1 | 0.26 | 0.012 |
| Site + Shoot biomass | 5 | 0.31 | 0.001 |
| Site/ Shoot biomass | 4 | 0.05 | 0.011 |
| Shoot biomass/Site | 1 | 0.22 | 0.001 |