Ontogenesis of Prunus pumila and Rosa glauca Pourr. in introduced populations in the Southern Urals and Western Siberia

The article presents for the first time the results of studying the ontogenesis of Prunus pumila L. and Rosa glauca Pourr. seed origin when growing plants outside the natural range in the continental climate of the Southern Urals and forest-steppe of Western Siberia. The marker features of ontogenetic states of Rosa glauca in the process of forming shrub biomorphe are described. It has been noted that Prunus pumila in juvenile and immature state develops at an accelerating pace and form a powerful area of the hypocotyls and root neck, which defines further processing of the rootstock quality.