Trickle irrigation has found rapid acceptance in fresh market tomato production. Tomatoes have shown as marked sensitivity to water stress with irrigation increasing yields substantially. It has also been effective in reducing total water requirements for tomatoes. Although increased amount of water increase tomato yield, the important quality factors of total soluble solids and acidity, particularly for processing tomatoes, were found to be inversely related to yield increases from irrigation. This project was designed to investigate the effects of different irrigation regimes under the trickle irrigation, plastic mulch production system on fresh market tomato yield and fruit quality. Of particular interest was the effect of water restrictions late in the crop on the levels of total soluble solids.