Dering, Monika
Rączka, Grzegorz
Szmyt, Janusz
Funding for this research was provided by:
Institute of Dendrology, PAS (Statutory founds)
Narodowe Centrum Nauki (2011/01/D/NZ8/01855)
Uniwersytet Przyrodniczy w Poznaniu (Statutory founds, Statutory founds)