Features of the anatomical structure of stems of dwarf and semi-dwarf cherry rootstocks grown in Uzbekistan.

Stone fruit crops are of great importance for the agriculture of a country. The method of comparative anatomy is successfully used to resolve controversial issues of taxonomy and phylogeny. Anatomical features, due to their relative conservatism, make it possible to more reasonably judge the relationship of certain taxa. The aim of the research is to study the anatomy structure of the dwarf and semi-dwarf cherry rootstocks stem in order to identify structural features and adaptive features of the rootstocks under study. Anatomical features are of great importance in the environmental characterization of plums and varieties of the main cultivated species. Based on the results obtained, the following features prevail in dwarf cherry rootstocks Gisella-5 and VSL-2 and Colt semi-dwarf cherry rootstocks: large stem diameter, extensive wood-bast complex libriform and core, the smallest vessels and parenchymal cells. This is important not only for the correct assessment of the adaptive potential of varieties and their distribution by zones, but also for understanding the process of modern species formation, the main directions of the evolutionary process, since the formation of species proceeded on the basis of their ecological differentiation.