To study the effects of different levels of preharvest shading (74, 58, 48, 38 and 5% of light penetration which were denoted by S0, Sv S2, Ss and S4 respectively) on developing strawberry (Fragaria X ananassa Duchesne) cv. Ostara fruits, some chemical tests (pH, total soluble solids and titratable acidity) associated with fruit quality were carried out. Results showed that although the different levels of preharvest shading werefound to demonstrate a significant effect on the chemical parameters studied, this could only be detected in fruits shaded by S4 and Sy However, for total soluble solids, significant interactions were observed between location offruit and fruit type and also between storage day and fruit type.