highly significantp < 0.0001
Significance levels were denoted as follows: * p < 0.05 (significant); ** p < 0.01 (very significant); *** p < 0.001 (highly significant); **** p < 0.0001 (extremely significant); and ns, p > 0.05 (not significant). 3.
Significance levels were denoted as follows: * p < 0.05 (significant); ** p < 0.01 (very significant); *** p < 0.001 (highly significant); **** p < 0.0001 (extremely significant); and ns, p > 0.05 (not significant). 3.
All groups showed a trend of decreasing PI values after 4 wpv.