The effect of weather conditions on the seasonal rhythm of plant development of Amur cork tree (<i>Phellodendron amurense</i>rupr.) in the forest-steppe of the Ob region

Background. Amur cork tree is a valuable woody plant of great economic importance. Its bark, liber, leaves, and fruits are successfully used in medicine cosmetology. This very ornamental serves as good honey plant. It can be potential source industrial cork. Due to its properties relative unpretentiousness, may interest for introduction. In this regard, the aim research was study peculiarities influence weather conditions on seasonal rhythm development ( Phellodendron amurense Rupr.) under foreststeppe Ob region. Materials methods. Thirty two trees were material study. These introduced forest-steppe Phenological observations evaluate growth carried out according methodological recommendations I. D. Yurkevich coauthors. The Pearson correlation coefficient (r) identify dependence conditions. Results. plants found adapted arboretum Siberian Research Institute Plant Production Breeding. shown that year with highest sum effective temperatures (2020), duration interphase periods average 2 days shorter than other years. At same time, coldest (2018), did not have time complete their leaf fall before snow cover appeared. vegetation observed start mid-May. completion growing season varies greatly from year. Conclusion. established region corresponded features specific species within natural range.