M. Tech. Agriculture / Tomatoes (Solanum lycopersicum) and sweet or bell peppers (Capsicum annuum L.) belong to the Solanaceae family. They constitute an excellent source of phenolic (flavonoids), vitamin C (ascorbic acid) and carotenoids (especially lycopene, b- carotene, a precursor of vitamin A), known as antioxidants. The aim of this study was to investigate the influence of photo-selective nets (ChromatiNet™) (red, pearl and yellow) with 40% shading on postharvest fruit quality parameters (Soluble solids content, Titratable acidity, fruit mass and firmness), bioactive compounds (ascorbic acid, total phenols, flavonoid, lycopene, b-carotene contents), antioxidant scavenging activity, odour active aroma compounds and the sensory quality of three indeterminate sweet pepper cultivars HTSP-5 (green), HTSP-3 (red) and Celaya (yellow) and three tomato cultivars (AlfaV, Irit, and SCX 248). A commercial black net (control) with 25% shading was included for comparison.