1. 1 DEPARTMENT OF AGRONOMY, FACULTY OF AGRICULTURE, ASSIUT UNIVERSITY DEPARTMENT OF AGRONOMY, FACULTY OF AGRICULTURE ASSIUT, EGYPT
2. 2 Department of Agronomy, Faculty of Agriculture, Assiut University Assiut, Egypt
3. 3 Department of Agronomy, Faculty of Agriculture, Assiut university Assiut, Egypt