| Treatment | Lot 1 | Lot 2 | ||
| Average | Groups | Average | Groups | |
| T4 | 2.01 | A | 2.22 | A |
| T2 | 1.89 | A | 1.80 | A |
| T6 | 1.84 | A | 2.01 | A |
| T1 | 1.43 | AB | 0.79 | B |
| T3 | 1.00 | B | 0.67 | B |
| T5 | 0.79 | B | 0.66 | B |