Abstract
Application of auxin to the apical end and to the transverse incision in a dissected internode, led to the formation of early vessels in such a way that the vessels below the incision were aligned with the vessels above it. There was a structural relation between the early vessels and terminal vessels based on the fact that the former overlay the latter. A hypothesis is forwarded stating that a template according to which the early vessels find their positions, exists on the surface of terminal wood.
Keywords
terminal vessel; early vessel; template