Agrobiological evaluation of new apple clonal rootstocks of the Michurinsk State Agrarian University selection using different breeding methodsZinaida N. Tarova, Nataliya L. Churikova, Maxim L. Dubrovsky, Andrey V. Kruzhkov and Natalya N. SavelyevaBIO Web Conf., 23 (2020) 01002DOI: https://doi.org/10.1051/bioconf/20202301002