NATURALIZATION OF ZIZIPHUS IN THE EASTERN CISCAUCASIA AND PROSPECTS OF EXPANSION OF THE SUBTROPICAL CULTURE AREAIN THE SOUTH-EAST OF RUSSIA
The Eastern Ciscaucasia is a warm place, where Achikulak NILOS VNIALMI successfully introduced a number of economically valuable subtropical crops: ziziphus, persimmon, pomegranate, medlar, sesame, cotton, peanuts, stevia, etc. since the 80-ies of the last century in order to expand the biodiversity of cultural flora in the reclamation development of the Tersko-Kumskie Sands of the Eastern Ciscaucasia.Among these naturalized plants, experimental studies were carried out the most voluminously and protractedly, associated with the adaptation of ziziphus vulgaris, which is one of the most frost-resistant and economically valuable subtropical fruit crops.According to the results of many years of research, the Achikulak experimental station has developed technologies for breeding and growing the crop in the North Caucasus region, but there is a real prospect of expanding the boundaries of cultivation of this valuable crop in connection with global climate warming over the past two decades in the European part of the country.A successful experience of introduction of ziziphus in the Volgograd region, which has the involvement of the Research Institute of agroforestry since the beginning of this century, confirms this fact, and the Research Institute of agriculture has continued the studies of ziziphus now, at the end of the second decade of this century. The Eastern Ciscaucasia is a warm place, where Achikulak NILOS VNIALMI successfully introduced a number of economically valuable subtropical crops: ziziphus, persimmon, pomegranate, medlar, sesame, cotton, peanuts, stevia, etc. since the 80-ies of the last century in order to expand the biodiversity of cultural flora in the reclamation development of the Tersko-Kumskie Sands of the Eastern Ciscaucasia.Among these naturalized plants, experimental studies were carried out the most voluminously and protractedly, associated with the adaptation of ziziphus vulgaris, which is one of the most frost-resistant and economically valuable subtropical fruit crops.According to the results of many years of research, the Achikulak experimental station has developed technologies for breeding and growing the crop in the North Caucasus region, but there is a real prospect of expanding the boundaries of cultivation of this valuable crop in connection with global climate warming over the past two decades in the European part of the country.A successful experience of introduction of ziziphus in the Volgograd region, which has the involvement of the Research Institute of agroforestry since the beginning of this century, confirms this fact, and the Research Institute of agriculture has continued the studies of ziziphus now, at the end of the second decade of this century.