Five new peach and nectarin selections were grown under the meadow orchard system, with bienal drastic pruning, at 4m x 0.5m and 4m x lm spacings. The experimental area was located in Monte Alegre do Sul, (22°41'S; 46°43'W and 40 hours below 7°C) State of São Paulo, Brazil. Results obtained during the six years of experiments clearly indicate that the 'Aurora-2' and IAC 282-24 peach selections were the best, with an average yield above 19 ton per hectare. For 4m x 0.5m spacing, with a density of 5000 plants per hectare, the productivity increased about 12%, however decreasing the weight of the final product. The best average weights of the fruits, above of l00g, were obtained by the IAC 6782-83 and IAC 282-24 selections.
peach; nectarine; Prunus persica; IAC selections; meadow orchard; drastic pruning; productivity
