Authors
Tsvetelina Stoilova
Institute of Plant Genetic Resources, Sadovo, Bulgaria
Malgozhata Berova
University of Agriculture, Plovdiv, Bulgaria
© 2012 Tsvetelina Stoilova, Malgozhata Berova, published by Polish Society for Horticultural Sciences (PSHS)
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.