only marginally significantp = 0.05
The positive relationship between branching intensity and soil available P was only marginally significant (marginal R 2 = 0.02, p = 0.05; Table 1 ), while DBI (values range from 0, a fully dichotomous branching pattern to 1, a fully herringbone branching pattern [ 30 , 31 ]) was not related to any of the environmental factors considered in this study. 2.2.