Arboriculture Terms

the outer layers of tissue of woody roots and terns consisting of the cork cambium and the tissues produced by it. such as bark.

in structural pruning of young trees branches that will be left in place often forming tbe initial scaffold framework of a tree (contrast with temporary branches).

point at which a plant cannot pull any more water from the soil and suffers permanent damage (compare to available water. field capacity. gravitational water. and saturation point).