Table 4.
Contingency χ2 tests for differences in genotype frequencies between Phaeosphaeria nodorum collections made from the same host treatment at different sampling times.
| Pair-wise comparisons | Multi-population comparisons | |||
|---|---|---|---|---|
| 2004A vs. 2004B | 2004B vs. 2005A | 2004A vs. 2005A | ||
| Levis | 10.16 (7) | 25.02 (8)*** | 17.50 (7) ** | 32.37 (16) ** |
| Runal | 16.28 (7)* | 10.82 (6) | 11.82 (7) | 24.95 (14)* |
| Mixture | 10.87 (7) | 10.97 (8) | 10.38 (6) | 18.26 (16) |
| Tamaro | 17.80 (8)* | 17.25 (7)** | 15.87 (8) * | 30. 13 (16)* |
| Tirone | 15.80 (8)* | 15.60 (8)* | 19.54 (8) ** | 31.64 (16) ** |
Values in bold font are significant after Bonferroni correction at a global alpha of 0.05 (p-value of 0.05/15 = 0.0032) and values in parenthesis are degrees of freedom. A Bonferroni correction was not applied for the multi-population analysis.
* Significant at p = 0.05 before Bonferroni correction
** Significant at p = 0.01 before Bonferroni correction
*** Significant at p = 0.001 before Bonferroni correction