Authors
Piotr Zakrzewski
Department of Ornamental Plants, Poznań University of Life Science, Poznań, Poland
Anita Schroeter-Zakrzewska
Department of Ornamental Plants, Poznań University of Life Science, Poznań, Poland
© 2012 Piotr Zakrzewski, Anita Schroeter-Zakrzewska, published by Polish Society for Horticultural Sciences (PSHS)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.