Aiming to evaluate the influence of rootstocks on several physical and chemical fruit characteristics such as fruit size, total soluble solids (o Brix), acidity, ratio, juice content, technological index, juice color, taste, pulp, oil, vitamin C, and proline contents, an experiment was set up in December 1991, in Bebedouro, São Paulo State, Brazil. Tree spacing was 7.0 m x 4.0 m. The experiment was a randomized block design, with four replications and two trees per plot. Tested rootstocks were: ‘Thornton’ tangelo (Citrus reticulata Blanco x Citrus paradisi Macf.), ‘Troyer’ citrange [Citrus sinensis (L.) Osbeck x Poncirus trifoliata (L.) Raf.], ‘Valencia Americana’ sweet orange [Citrus sinensis (L.) Osbeck], ‘National’ rough lemon (Citrus jambhiri Lush.), ‘Cleopatra’ mandarin (Citrus reshni Hort. ex. Tanaka), ‘Sunki’ mandarin (Citrus sunki Tan.), and ‘Swingle’ citrumelo [Citrus paradisi Macf. x Poncirus trifoliata (L.) Raf.]. Trees were grown without irrigation. Fruit quality was evaluated from 1996 to 1998, and 2000, whereas fruit yield from 1995 to 2000. The rootstocks induced similar fruit quality. Fruit yield was greater with ‘Sunki’ but similar to ‘Cleópatra’ and ‘Valência Americana’. Thornton was the worst rootstock.