304 Crown form/morphology
Crown form is defined as the appearance of the crown. It may be influenced by crown shape and/or by branch habit.
Crown form provides supplementary information about the condition of a tree. In many cases, crown form changes through time. The premature development of such changes often indicates the action of one or more types of stress. However, the separation of stress- and genetically-induced changes is often difficult.
Crown form in Picea spp.:
11 Comb; 12 Brush; 13 Plate