Optimization of individual elements of clonal micro-propagation of fruit and berry crops in the production system of healthy planting materialL. V. Tashmatova, O.V. Matsneva, T. M. Khromova and V. V. ShakhovE3S Web Conf., 254 (2021) 04001DOI: https://doi.org/10.1051/e3sconf/202125404001