| Factor | Log spores/ml | SE (%) |
| S + T + C1 | 9.55c | 84.2ab |
| S + T + C2 | 9.51cd | 90.3a |
| N + T + C1 | 9.64b | 73.1bc |
| N + T + C2 | 9.31de | 79.9c |
| S + C2 | 10.02a | 88.2a |
| C2 | 9.23e | 69.6d |
| Control | 8.96e | 35.6e |