EN
Tree architecture is the result of morphogenetic processes at different levels of plant body organization. These phenomena are under endogenous and environmental control and also depend also the internal plant biomechanics. This paper reviews the problem of various aspects of tree architecture development with respect hormonal control and plant biomechanics. The role of morphogenetic field associated with auxin polar transport, formation of reaction wood and the biomechanical aspects with respect to various environmental conditions are discussed.