The influence of three grapevine varieties (Castelao, Trincadeira, Camarate) grafted on six rootstock varieties (99 R, 110 R, 140 Ru, 1103 P, SO4 e 41 B) on yield and berry quality was studied, for the period of six years (1992/97), in an experiment design in split-plot at Quinta da Folgorosa (VQPRD Torres Vedras). This vineyard presents a mild water stress during the summer. The present paper complement the previous data already published among years 1992/94 (Climaco et al., 1999). The results showed that the grapevine variety has a more important influence on yield and quality characteristics of the must than the rootstock. In the case of yield, we found the existence of an affinity absence between the grapevine Trincadeira and the most vigorous 1103 P rootstock. In contrast, this grapevine showed a particular affinity with the less vigorous rootstocks, such as 110 R and 41 B. The rootstocks 140 Ru presents the highest yield, good vigour and berry quality, irrespective of the grapevine grafted on it