AJCS 13(09):1467-1472 (2019) ISSN:1835-2707 doi: 10.21475/ajcs.19.13.09.p1557 Phenological study of sugar apple (Annona squamosa L.) in dystrophic yellow latosol under the savanna conditions of Roraima Elias Ariel de Moura1*, Pollyana Cardoso Chagas2, Edvan Alves Chagas3, Railin Rodrigues de Oliveira2, Wellington Farias Araújo2, Sara Thiele Moreira Sobral2, Daniel Lucas Lima Taveira2 1Universidade Federal Rural do Semi-Árido, Programa de Pós-Graduação em Fitotecnia, Av. Francisco Mota, 572, Costa e Silva, 59.625-900, Mossoró, RN, Brasil 2Universidade Federal de Roraima, Centro de Ciências Agrárias, Departamento de Fitotecnia. Boa Vista/RR, Brasil 3Empresa Brasileira de Pesquisa Agropecuária, Boa Vista, RR, Brasil. CNPq Research Productivity Scholarship. *Corresponding author:
[email protected] Abstract Sugar apple (Annona squamosa L.) is a commercially significant fruit species due to its nutritional qualities. The state of Roraima has excellent soil and climatic conditions for the cultivation of the species. However, no studies on the phenological behavior of this plant have been reported in the literature. In this context, the objective of this work was to investigate the vegetative and reproductive phenological behavior of sugar apple under the savanna conditions of the state of Roraima. The experiment was carried out in four seasons of the year (2014/2014 and 2015/2015 rainy season and 2014/2015 and 2015/2016 Summer). Production pruning was carried out in February 2014 (2014.1 cycle), September 2014 (2014.2 cycle), February 2015 (2015.1 cycle) and September 2015 (2015.2 cycle). Forty plants were monitored during the experiment and evaluated every three days for the following variables: beginning date of bud swelling; duration of flowering; and fruit harvest time.