highly significantp < 0.01
In addition, highly significant positive correlations (p < 0.01) were found between OR and SWT (r = 0.998), OR and NBV (r = 0.992), OR and NSV (r = 0.978), OR and TV (r = 0.996), OR and ASVA (r = 0.926), OR and Lignin (r = 0.987), SWT and NBV (r = 0.992), SWT and NSV (r = 0.986), SWT and TV (r = 0.996), SWT and ASVA (r = 0.935),