| Strain | 8 dS∙m−1 | 10 dS∙m−1 | 12 dS∙m−1 |
| Control | 4.8 f | 3.5 h | 3.0 i |
| KS 8 | 9.7 a | 9.2 b | 4.25 fg |
| KS 28 | 8.1 c | 9.2 b | 4.25 fg |
| KS mix | 7.0 d | 5.5 e | 4.20 g |