| Treatment | Chlorophyll level (SPAD) | Silicon level (%) |
| RB72454 (MR) | 34.9 ± 0.75b | 0.66 ± 0.04a |
| RB72454 (MR) + Si | 45.5 ± 1.05a | 0.64 ± 0.05ab |
| SP801842 (S) | 36.1 ± 0.62b | 0.48 ± 0.01b |
| SP801842 (S) + Si | 43.7 ± 0.68a | 0.68 ± 0.05a |
| CV (%) | 6.29 | 16.59 |