Improving the range of industrial plantings of grapes due to introduced clones Dmitry Yermolin, Zinaida Kotolovets, Natalia Studennikova, Galina Yermolina and Daria Zadorozhnaya E3S Web Conf., 175 (2020) 01017 Published online: 29 June 2020 DOI: 10.1051/e3sconf/202017501017