PLANT CELL BIOTECHNOLOGY AND MOLECULAR BIOLOGY

The classification of biological objects and systems reflect their theoretical concepts, identifying structural features and properties. A wide variety of anthropogenically transformed floras of the developed industrial and agrarian regions, needs the creation of a classification scheme that would reflect the features of their formation. This newly developed classification makes it possible not only to identify the structural features and genesis of the flora of agrophytocenoses, its influence on the development of regional flora, but also to make a probabilistic forecast for the development of different topological level floras.

The study of the flora of the southwest of the Central Russian Upland helped to distinguish types of anthropogenic transformation of the flora that share common features of structure and development. One of the distinguished types of flora is the flora of agrophytocenoses, in which, due to its heterogeneity, various classes, species, subspecies, and groups of flora are formed. Based on the study of 83 fields of agricultural crops and analysis of the similarities and differences in their species compositions and structures, a classification of the flora of agrophytocenoses of the region is created. The results indicate that the main factors contributing to the formation of various classes, species, subspecies and groups of flora of agrophytocenoses at different levels of their organization are type of ownership (agricultural holdings, farms, long-fallow lands); gricultural technologies for a particular crop (row crops and continuous sowing crops) and spatial differentiation of the vegetation cover in agricultural crops cultures.