Authors
Grzegorz Łysiak
Department of Pomology Faculty of Horticulture and Landscape Architecture, Poznań University of Life Sciences, Poznań, Poland
© 2015 Grzegorz Łysiak, published by Polish Society for Horticultural Sciences (PSHS)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.