This study evaluated the phenology of soursop (Annona muricata L.) cultivated in a savanna area. Four trees were randomly chosen from each of six cultivars of the Embrapa Amapá experimental collection in a savanna ecosystem. The cultivars were: soursop A, soursop B, FAO II, Morada, Lisa and M-415 of Embrapa Amazonia Oriental. The climate type is Ami and the soil is classified as a Typic Haplorthox. Leaf fall happened in all soursop cultivars in May and June (after harvest) and September and October (dry season). Flowering occurred during the rainy season, with extremes in February and July. Annual flower prodution was superior in soursop Β (115) and FAO II (97). Fruit development was expressive from December to March. Fruit set stood out on soursop A (9%) and FAO II (6,7%). Peak of the fruit harvest was in March, except for soursop A which was in May.
savanna; leaf fall; flowering; fruiting; harvest