Deficit irrigation (DI) and partial rootzone drying (PRD) are water-saving strategies. DI involves irrigating the entire rootzone with less than evapotranspiration, while PRD involves irrigating only part of the rootzone leaving the other part to dry to a predetermined level before the next irrigation. DI has been studied on sweet pepper with varied responses. From a glasshouse study on ‘Sonar’ sweet pepper (Capsicum annum L.), Chartzoulakis and Drosos (1997) reported increased fruit dry mass, while Delfine et al. (2000) observed 30% reduction in both fruit fresh and dry masses in thefield-grown ‘Quadratro d’Asti’ sweet pepper. Some aspects of yield response of pepper have been reported from split-root experiments with inconclusive results. Cantore et al. (2000) reported reduction in fruit fresh mass and dry mass of sweet pepper when irrigation was withheld from one half of the split-root system compared to plants irrigated on both halves. In contrast, Kang et al. (2001) did not observe any difference in yield for hot pepper under similar treatments. Information on yield and quality responses to PRD does not exist for glasshouse- or field-grown hot pepper. We are aware of only two reports on the effect of PRD on herbaceous plants, those of Zegbe-Dominguez et al. (2003a,b) for tomato.