| Treatments | Factor X1 BSWW | Factor X2 DWW |
| 1 | −1 | −1 |
| 2 | 1 | −1 |
| 3 | −1 | 1 |
| 4 | 1 | 1 |
| PC | 2 L | 2 L |
| Factor X1 BSWW | −1 1 L | +1 3 L |
| Factor X2 DWW | −1 1 L | +1 3 L |