APPROBATION CHARACTERISTICS OF THE HIGHBUSH BLUEBERRY VARIETIES UNDER CONDITIONS OF LENINGRAD REGION
The article presents the results of the description of 22 approbation characteristics of highbush blueberry according to morphological and biological properties under conditions of Leningrad region. The research was carried out in 2016-2019 in the educational and experimental garden of St. Petersburg State Agrarian University. The objects of research were 11 varieties of highbush blueberry of various ecological and geographical origin: Bluecrop (USA), Bluegold (USA), Bonus (USA), Brigitta Blue (Australia), Denise blue (Australia), Reka (New Zealand), Spartan (USA), Toro (USA), Elizabeth (USA), Elliott (USA), Earliblue (USA). As a result of the description of the approbation characteristics, it was established that all the studied varieties of highbush blueberry form the aerial vegetative sphere and berries on the bushes. Half of the studied varieties have the prospect of growing in amateur gardening. It is not recommended to grow highbush blueberry varieties for testing purposes: the ripening time of berries on the growth of the previous year (later) - Bonus, Brigitte Blue, Elizabeth, Elliot; winter hardiness (low) - Brigitte Blue, Erliblue.