Kucheryavyj V. Thuja occidentalis and its ornamental forms used in planting of greenery in the city of Lviv

The object of study - the process of growth and development introduced cultivars arborvitae west. The goal - to establish systematic composition and identification of biological and ecological characteristics of decorative forms in western arborvitae urbohennyh conditions Lviv, determine the prospects micropropagation cultivars and their vykorystannya in gardening. Research methods - reconnaissance; visual; systematic; phenology; Forestry-taksatsiyni; soil science; microclimate; physiology; vegetative propagation; biophysical; phytocoenotic; atomic absorption spectrum photometry; mathematical and statistical and aesthetic evaluation. Scientific innovation. The systematization 43 decorative forms that occur in green plantations and nurseries m. Lviv; 8 cultivars discovered and described for the first time; studied the seasonal rhythms of 29 cultivars and their consistency with the climatic conditions of. the city; identified physiological and biochemical mechanisms of seasonal changes color needles individual decorative shapes; Mounted biometric differentiation of plants in one and dvohrytmichnyh ordinary landings, which can adjust the distance between seats. The practical significance - selected and improved methods of systematic studies composition and vitality western arborvitae decorative forms in city landscaping. Areas of use: Forestry and Horticulture.