S. A. Seif El-Yazal1, H. F. Alharby2, M. A. Seif El-Yazal3, G. M. Hassan4 and M. M. Rady3
1Department of Horticulture, 3Department of Botany, 4Department of Genetics, Faculty of Agriculture, Fayoum University, 63514 Fayoum, Egypt
2Department of Biological Sciences, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia