On the structural organization of the Pinus sylvestris crown

摘要

The developmental pattern of Pinus sylvestris L.tree as a multi-level system is considered. The pine trees were examined as a complex shoot system. The branches are the result of the growth and development of the first lateral axes. Three types of branches differing in quantitative and quanlitative development of the first, second and third order of axes were discovered in the pine crown. Each branch type is formed at a certain growth phase of a trunk. This leads to the changes in structure and form of the crown of the tree with age.