Table 1. General linear model analyses testing the effect of population and isolate (nested within population) on quantitative traits of Rhynchosporium commune.
| Trait | Source | df | MS | F | P |
| Growth rate 12°C | Population | 8 | 0.44 | 4.35 | 0.0002 |
| Isolate | 103 | 0.10 | 5.50 | <0.0001 | |
| Error | 189 | 0.02 | |||
| Growth rate 18°C | Population | 8 | 0.37 | 2.29 | 0.0267 |
| Isolate | 102 | 0.16 | 7.06 | <0.0001 | |
| Error | 191 | 0.02 | |||
| Growth rate 22°C | Population | 8 | 0.88 | 7.61 | <0.0001 |
| Isolate | 97 | 0.12 | 9.58 | <0.0001 | |
| Error | 168 | 0.01 | |||
| Fungicide resistance | Population | 8 | 2.09 | 5.48 | <0.0001 |
| Isolate | 91 | 0.38 | 30.20 | <0.0001 | |
| Error | 587 | 0.01 | |||
| Melanization | Population | 8 | 1.19 | 1.10 | 0.3678 |
| Isolate | 111 | 1.08 | 18.10 | <0.0001 | |
| Error | 225 | 0.06 | |||
| Spore size | Population | 6 | 6.44 | 1.17 | 0.3276 |
| Isolate | 87 | 5.48 | 5.91 | <0.0001 | |
| Error | 177 | 0.93 | |||
| Spore number | Population | 6 | 7154.7 | 1.99 | 0.0754 |
| Isolate | 87 | 3591.7 | 13.69 | <0.0001 | |
| Error | 187 | 262.4 | |||
| Virulence | Population | 8 | 56.65 | 2.49 | 0.0164 |
| Isolate | 105 | 22.77 | 17.19 | <0.0001 | |
| Error | 211 | 1.32 |
Population effects were tested over isolates nested within population and isolate effects over the pooled error. Samples sizes for the eight traits listed were 301, 302, 274, 687, 345, 271, 281, and 325, respectively.