Jeffrey Adelberg. Clemson University, USA.
Plamen Alexandrov. University of Forestry, Sofia, Bulgaria.
Nina Bassuk. Cornell University, USA.
Margherita Beruto. Regional Institute for Floriculture,Sanremo, Italy.
Paromik Bhattacharyya. CSIR-Institute of Himalayan Bioresource Technology, 176061 Palampur, India
Mihaela Corneanu. Banat University of Agricultural Sciences and Veterinary Medicine, Timisoara, Romania.
Alison Ferrie. NRC Plant Biotechnology Institute, Saskatchewan, Canada.
Alena Gajdošová. Institute of Plant Genetics and Biotechnology, Nitra, Slovakia.
Robert Geneve. University of Kentucky, USA.
Micheal Hall. University of Wales, UK.
Alan Hunter. University College, Belfield, Dublin 4, Ireland.
Shiri Mohan Jain. Helsinki University, Finland.
Byoung Ryong Jeong. Gyeongsang National University, Jinju, Korea.
Peter Kitin. University of Washington, Seattle, USA.
Maurizio Lambardi. CNR-IVALSA/ Trees and Timber Institure, Florence), Italy.
Marie-Anne Lelu-Walter. INRA, Research Unit in Forest Tree Breeding, Genetics and Physiology, Ardon, France.
Abdul Mujib. Jamia Hamdard University, New Delhi, India.
Gregor Osterc. University of Ljubljana, Slovenia
Ina Pinker. Humboldt University of Berlin, Germany.
Rene Rohr. University of Lyon I, France.
Barbara Ruffoni. CRA FSO Ornamental Plants Research Unit, Sanremo, Italy.
Apostolos Scaltsoyiannes. Aristotle University, Thessaloniki, Greece.
Claudio Stasolla. University of Manitoba, Manitoba, Canada.
Ivajlo Tzvetkov. Forest Research Institute, Sofia, Bulgaria.
Johannes van Staden. University of KwaZulu-Natal, Scottsville, South Africa.
Stefaan Werbrouck. Ghent University, Belgium.
Patrick von Aderkas. University of Victoria, Canada.
Todd West. North Dakota State University, USA.
Traud Winkelmann. Universiy of Hannover, Germany.
Edward Yeung. University of Calgary, Canada.

Language editors: Biljana Ovcharova and Alexander Delkov
Pre-press: Nina Ivanova