| Farm | System | Discoloration | Wilting | Growth (cm week−1) | Leaf emergence (leaves week−1) | Leaf area (cm2) | |
| Rhizome | Root | ||||||
| Dar-C | Conventional | 5.0 | 3.4 | 6.67 | 2.63 | 2.06 | 56.7 |
| Dol-O | Organic | 6.0 | 3.2 | 6.50 | 1.79 | 2.00 | 50.2 |
| Grim-O | Organic | 4.8 | 2.2 | 6.33 | 3.71 | 2.67 | 85.9 |
| How-C | Conventional | 5.3 | 3.7 | 8.00 | 1.88 | 2.29 | 56.6 |