Does successive cambia differentiation in a vicennia depend on leaf and branch initiation?

In Avicennia germinans, A. resinifera and A. marina no correlation was found between the number of successive anomalous rings in the internodes and sylleptic shoots and the number of leaves that developed above an internode. This suggests that leaf and lateral branch formation have no immediate effect on new cambium initiation. The results show that although there is some correlation between the internode location along the shoot (radial increment) and the number of rings, initiation of successive cambia might be regulated by the overall vigour of growth rather than by the simple sequence of leaf and lateral branch formation.