Importance of breeding mulberry trees under vegetative (in vitro) methods in high-quality silk production in UzbekistanShavkat Umarov, Yorkinoy Mirzaeva, Khurshid Yalgashev, Khurshida Fozilova and Javokhir KhaydaralievE3S Web Conf., 244 (2021) 02034DOI: https://doi.org/10.1051/e3sconf/202124402034