Table 1.
Results of the statistical analyses both as a one-way analysis with inoculum treatment as a fixed factor and as a regression analysis per replacement series. Values in bold are significant (p < 0.05). B = the direction of the relationship, e.g. H > A indicates that biomass is higher with a higher proportion of heathland material in the inoculum relative to arable soil. Relationships significant at p < 0.1 are shown in brackets
| 1-way LMM | Regression analysis (per replacement series) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Treatment | Arable-Grassland | Arable-Heathland | Grassland-Heathland | ||||||||||||
| Response | d.f. | F | p value | d.f. | F | p value | B | d.f. | F | p value | B | d.f. | F | p value | B |
| A. montana | 14, 163 | 3.21 | 0.0002 | 1,56 | 0.53 | 0.47 | – | 1,56 | 4.64 | 0.036 | H > A | 1,56 | 10.06 | 0.0025 | H > G |
| C. rotundifolia* | 14, 163 | 3.18 | 0.0002 | 1,56 | 0.20 | 0.65 | – | 1,56 | 3.11 | 0.083 | (H > A) | 1,56 | 1.72 | 0.20 | – |
| F. filiformis | 14, 163 | 1.99 | 0.0214 | 1,56 | 0.04 | 0.85 | – | 1,56 | 3.31 | 0.074 | (H > A) | 1,56 | 6.49 | 0.014 | H > G |
| C. capillaris | 14, 163 | 2.26 | 0.008 | 1,56 | <0.01 | 0.95 | – | 1,56 | 5.16 | 0.027 | H > A | 1,56 | 2.77 | 0.10 | – |
| M. arvensis | 14, 163 | 18.09 | <0.0001 | 1,56 | 9.54 | 0.0031 | A > G | 1,56 | 15.93 | 0.0002 | A > H | 1,56 | 32.63 | <0.0001 | G > H |
| L. perenne | 14, 163 | 0.69 | 0.78 | 1,56 | 0.10 | 0.75 | – | 1,56 | 1.43 | 0.24 | – | 1,56 | <0.01 | 0.99 | – |
| Target biomass | 14, 163 | 4.11 | <0.0001 | 1,56 | 0.05 | 0.82 | – | 1,56 | 3.83 | 0.055 | (H > A) | 1,56 | 8.66 | 0.0047 | H > G |
| Ruderal biomass | 14, 163 | 2.78 | 0.001 | 1,56 | 8.52 | 0.005 | A > G | 1,56 | 0.21 | 0.65 | – | 1,56 | 8.05 | 0.0063 | G > H |
| Total biomass | 14, 163 | 2.78 | 0.001 | 1,56 | 8.73 | 0.0046 | A > G | 1,56 | <0.01 | 0.98 | – | 1,56 | 4.45 | 0.039 | G > H |
*Log-transformed