| Treatment | Vitamin C (mg∙100g−1 FW) | |
| CaNO3-N application (mg∙L−1) 0 - 21 days | CaNO3-N application (mg∙L−1) 22 - 28 days | |
| 300 | - | 30.03 a* |
| 300 | 300 | 20.03 b |
| 300 | 1000 | 20.44 b |
| 1000 | - | 30.52 a |
| 1000 | 300 | 19.81 b |
| 1000 | 1000 | 21.95 b |
| LSD (P = 0.05) | 3.07 | |