Assestment of current condition of rare species’ population of Crimean flora, <i>Sorbus Roopiana</i> Bordz
The study of Sorbus Roopiana Bordz. growing on Babugan-yaila has been performed. 40 specimens have been revealed. The geographical coordinates of the places of growth are determined, the taxi indicators are set: age, height, diameter of trunks and crowns. The description of environmental conditions of places of growth is accomplished. The list of 53 species of woody, herbaceous plants and ferns, typical of places of growth of Sorbus Roopiana, which can be used as indicators in search of new places of growth of this species is given. The analysis of quality of 145 fruits is made, potential and real seed productivity is defined. The comparative biochemical analysis of fruits of three close species of the Crimean mountain ash is carried out, the results testify about the possible hybrid origin of a Sorbus Roopiana Bordz. from Sorbus aucuparia and Sorbus graeca.