Subtropical peaches and nectarines pollen storage, germination and fruit set were studied. The results showed that the pollen stored in a desiccator at 0 ± 1 °C maintained high germination rates - over 70% - for 60 days; under room temperature (25 + 2D C) the pollen lost rapidly their viability after the 3th day of storage. The best in vitro pollen germination - 89% - occurred on nutrient media of Murashige & Skoog, 5% sacarose and 0,7% agar. The highest percentages of fruit set - over 50% - were obtained by Jóia-1, Ouromel-3, Aurora-1, Aurora-2, Flordaprince cultivars and IAC 680-13 and IAC 680-178 hybrids. The male sterility was observed in the IAC N1574-25 nectarine.
peach; nectarine; Prunus pérsica; pollen; fruit set; male-sterility; self-fertility; pollination