1. Department of Agricultural Biotechnology, College of Agricultural and Food Sciences, King Faisal University, Al Ahsa, Kingdom of Saudi Arabia;
2. Department of Plant Production, Faculty of Agriculture, Lebanese University, Beirut, Lebanon;
3. Department of Arid Land Agriculture, College of Agricultural and Food Sciences, King Faisal University, Al Ahsa, Kingdom of Saudi Arabia;
4. Department of Agronomy, University of Forestry, Sofia, Bulgaria