Authors
Jan Grabowski
Department of Meteorology, University of Warmia and Mazury, Olsztyn, Poland
Zdzisław Kawecki
Department of Horticulture, University of Warmia and Mazury, Olsztyn, Poland
Anna Bieniek
Department of Horticulture, University of Warmia and Mazury, Olsztyn, Poland
Zofia Tomaszewska
Department of Horticulture, University of Warmia and Mazury, Olsztyn, Poland