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| Group | Ra | Difference* |
|---|---|---|
| C | 0.314(0.12) | a |
| Gl | 0.406(0.18) | a,b |
| Sl | 0.431(0.09) | a,b |
| Pk | 0.584(0.04) | b |
| Di | 0.434(0.04) | a,b |
| Sp | 0.380(0.12) | a,b |
| Zr | 0.312(0.11) | a |
| Pg | 0.342(0.07) | a |
| SlSp | 0.386(0.06) | a,b |
| SlZr | 0.321(0.12) | a |
| SlPg | 0.364(0.13) | a,b |
Different letters indicate statistically significant difference between the groups (p<0.05).
