SHRUBS GENE POOL AS ELEMENT OF DECORATIVE GREENERY IN ARID CONDITIONS
Shrubs are very promising for use in modern green building. They develop quick-ly and reach the maximum of decorative, are easily propagated and grown, do not require special care. The widespread use of flowering shrubs (of various environmental forms - high, medium, low) will significantly reduce the floral arrangements cost. The object of study was the shrubs gene pool, cultivated in dendrological collections of the Federal Research Centre for Agroecology (a branch of the Russian Academy of Sciences, Volgograd, Kamyshin) in conditions of chestnut and light chestnut soils. The degree of prospectivity of the ornamental shrubs gene pool application for floral arrangements of green spaces in arid conditions was determined by long-term cultivating experience in the specific growing conditions. The article presents the biological potential of the shrubs in terms of flowering, the estimation of the shrubs decoration duration for their selection as part of the floral arrangement of green spaces in arid conditions. The decorative signs scale for the assortment selection, the tables on the signs decorative manifestation in desert and their combination with other types of decorative wood groups, recommendations for types of landscaping plantings (groups, single cages, curbs, alleys, edges, etc.) are given. The shrubs selection criteria for landscaping plantings are identified. The gene pool study is necessary for the further practical application of advanced models of plants and for the successful implementation of scientific achievements. Planting material of adapted shrubs are grown for the purpose of preservation and rational use in ecological renovation of assortment in modern conditions.