Arboriculture Terms

root or lower part of tree used for plant propagation on which is grafted scion wood to I combine the desirable characteristics of each.

1) horizon or layer within the soil profile where roots exist. 2) volume of soil containing tree roots. 3) horizontal spread of tree roots from the trunk. Typically the root zone of a tree extends well beyond I the drip line.

relative proportion of root mass to crown mass.