The differences between the forms of silver birch (Betula pendula Roth.) on the biometric indicators of the shoots in the northern subzone of the taiga

The article is devoted to the study of morphological and biological parameters of shoots of birch in the Northern subzone of the taiga. Revealed a statistically substantiated link between forms and such morphological-biometric parameters as size of shoots, the size of auxiblast and brachyblast, the number of leaves on auxiblast and brachyblast, the number of auxiblast and brachyblast.The necessity of further in-depth study of the forms of silver birch.