| Factors | Treatment | 1st | 2nd | 3rd |
| BCF | Control | 1.065 | 1.041 | 1.131 |
| GA3 | 0.916 | 1.068 | 1.158 | |
| EDTA | 0.947 | 1.094 | 1.208 | |
| TF | Control | 2.271 | 2.071 | 2.204 |
| GA3 | 3.191 | 2.558 | 2.582 | |
| EDTA | 2.511 | 1.997 | 1.432 | |
| PEF | Control | 2.418 | 2.156 | 2.493 |
| GA3 | 2.924 | 2.731 | 2.989 | |
| EDTA | 2.379 | 2.183 | 1.729 |