Ecology-biological features of the species of R. spinosissima L. for landscaping and forest reclamation

The article presents materials of the study of growth, flowering and fruiting of R. spinosissima L. phenology, variability of morphological characteristcs for the purpose of selection for landscaping and forest plantations of the arid zone of Lower Volga region. The data on a wide distribution area and on the basics of laboratory and field studies are given recommendations for use in different areas of the arid zone. The data collected for a long time of landscaping became a base for scientific recommendations High ecological plasticity ofR. spinosissima L. as well as its resistance to drought and low temperatures are established and proved. The ability of the studied of R. spinosissima to exist in a certain range of environmental factors is revealed. In the study of the species in field determined its belonging to certain environmental groups, life forms, relative to moisture, light, nutrition. Described the layout of the landscaping areas and methods of planting.