Ahmed Abou El-Yazied , PhD 

Associate Professor, Dept. of Horticulture

Director of center of agric. studies and consultancy (CASC)  

Faculty of Agriculture, Ain Shams University 

P.O. Box 68, Hadayek Shoubra 

Cairo 1124, Egypt 

Mobile: (+2) 012 100 83 17 

Tel & fax : (+202) 268 27 163 

E-Mail : [email protected]