N.V. Dorofeev1, A.V. Grecheneva2

1,2 Vladimir State University named after A.G. and N.G. Stoletovs (Vladimir, Russia)

2 Russian State Agrarian University – Moscow Agricultural Academy named after K.A. Timiryazev (Moscow, Russia)

N.V. Dorofeev1, R.V. Sharapov2, M.S. Goryachev3

1–3 Vladimir State University named after A.G. and N.G. Stoletovs (Vladimir, Russia)
1 dorofeevnv@yandex.ru, 2 sharapov76@gmail.com, 3 maximgoryachev97@yandex.ru