BOTANICAL CLASSIFICATION AND MORPHOLOGICAL AND BIOLOGICAL CHARACTERISTICS OF CALLISTEPHUS CHINENSIS (L.) NESS FOR LANDSCAPE GARDENING

Abstract

he most popular varieties of Callistephus chinensis (L.) Ness are introduced, summarized and recommended for cultivation in edaphic-climatic zones of the Right-Bank Forest-Steppe of Ukraine. The article digs deeper into the problem of selection and biotechnology of introduced plants and reviews the main agronomic characteristics of the varieties of Callistephus chinensis (L.) Ness. In the course of our research, it was found out, that Aster variety types are divided into excised plants, brushed and general according to their commercial function. The most part of the above mentioned plants refers to the group of excised and general plants. They are characterized by a high flower stem and large inflorescence. A small group of these varieties is classified as bushed plants, which are traditionally used for landscape gardening. The essential feature of these plants is a great number of simultaneously flowering inflorescences; they are also regarded as squat or dwarf plants. The research findings on morphological characteristics make it possible to garner serious insights into variability of quantitative characteristics of Callistephus chinensis (L.) Ness, as well as of alternative ones. The coloring of flowers and inflorescences are generalized according to the Sate variety control methodology (white, pink, bloomy pink, apricot, shocking pink, maroon, modena, deep blue and light blue). The great variety of colors corroborates a wide spectrum of selective and seed researches. According to the bush form, the most plants are regarded as towershaped plants, with the exception of the varieties «Goldshats», «Swan Lake» and «Velvet», which are characterized by loosely spreading form. The genotypes under investigation are marked by various plant performance, which varies from 1,5 («Yuliya») to 3,5-4 («Odarka»).