1 Institute of Agriculture, Department of Agronomy, Warsaw University of Life Sciences, 159 Nowoursynowska Str, 02‑776, Warsaw, Poland. anna_chodkiewicz@sggw.edu.pl.
2 Institute of Agriculture, Department of Agronomy, Warsaw University of Life Sciences, 159 Nowoursynowska Str, 02‑776, Warsaw, Poland.
3 Institute of Agriculture, Department of Biometry, Warsaw University of Life Sciences, 159 Nowoursynowska Str, 02‑776, Warsaw, Poland.
4 Biebrza National Park, Osowiec‑Twierdza 8, 19‑110, Goniądz, Poland.