| 1. | In Vitro Cyanobacterial Isolates Growth and their Effect on Rice Crop Cultivated in Pesticide-Treated Fields | |
| Pages 211-218 | ||
| H. A. H. EL-Zawawy; S. El-Kadi; Dina F. I. Ali | ||
| 2. | Bacteriological, Physical and Chemical Characteristics of the Drinking Water in Different Cities of Egypt | |
| Pages 219-223 | ||
| Aida H. Afify; F. I. A. Hauka; M. A. E. Selim; Mai G. Abd-elhameed | ||
| 3. | Heterosis, Combining Ability and Gene Action, for Yield and Yield Component Traits in Maize-Teosinte Hybrids | |
| Pages 225-231 | ||
| Rehab M. Habiba; K. A. M. Khaled; H. O. Sakr; Aisha S. S. Gad | ||
