Effect of different dosages of organic substrate on the catalase activity and the anthocyanins content in the one-year-old shoots of apple treeJulya V. Guryanova, Viktor D. Khmyrov, Dmitry V. Guryanov, Pavel Yu. Khatuntsev and Taymaskhan H.-H. AlievBIO Web Conf., 23 (2020) 01008DOI: https://doi.org/10.1051/bioconf/20202301008