A PROSPECTS OF THE BERBERIS GENUS ORNAMENTAL PLANTS USING IN THE CULTURAL DENDROFLORA OF THE ORYOL REGION

The introduction of decorative introduced species, capable of growing in modern conditions, without losing their decorative effect during the entire growing season, into the cultural dendroflora is a particularly urgent issue today. Five introduced species of the genus Berberis of the family Berberidaceae were selected as objects of research from the gene pool of the Russian Research Institute of Fruit Crop Breeding (VNIISPK) arboretum. Plants with good winter hardiness were identified: Berberis ottavensis f. purpurea, Berberis Thunbergii, Berberis Thunbergii cv. 'Golden Ring' and Berberis koreana. The following species and forms had the highest score in terms of general condition: Berberis ottavensis f. purpurea, Berberis Thunbergii, Berberis Thunbergii cv. 'Golden Ring' and Berberis koreana. Plants with the highest score for pest resistance were identified: Berberis Thunbergii cv. 'Golden Ring'. The forms as Berberis ottavensis f. purpurea, Berberis Thunbergii, Berberis Thunbergii cv. 'Golden Ring' и Berberis koreana had an excellent and good degree of flowering and fruiting. The assessment of the prospects was determined by summing up the indicators affecting the adaptation of these species in new conditions. Introducents were divided into groups of prospects and identified: very promising and promising. Four most resistant species and forms of promising fruit perennials of the genus Berberis have been identified: Berberis Thunbergii cv. 'Golden Ring', Berberis ottavensis f. purpurea, Berberis Thunbergii and Berberis koreana. These species can be recommended in the cultural dendroflora of Orel region.