_____________________________________________________________________________________________________ *Corresponding author: E-mail: cesar.benavente@inpa.gov.br, cesar.benavente@gmail.com; Journal of Experimental Agriculture International 40(3): 1-8, 2019; Article no.JEAI.51181 ISSN: 2457-0591 (Past name: American Journal of Experimental Agriculture, Past ISSN: 2231-0606) Hydric-stress Tolerance in Cocona (Solanum sessiliflorum Dunal) Edimilson Barbosa Lima 1 , César Augusto Ticona-Benavente 2* and Danilo Fernandes da Silva Filho 2 1 Instituto Federal de Educação Ciência e Tecnologia do Amazonas, Manaus, Brazil. 2 Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil. Authors’ contributions This work was carried out in collaboration among all authors. Author EBL performed the fieldwork and assessed the character values. Author CATB performed the statistical analysis, and wrote the first draft of the manuscript. Author DFSF designed the study and discussed the results. All authors read and approved the final manuscript. Article Information DOI: 10.9734/JEAI/2019/v40i330366 Editor(s): (1) Dr. Nazimah Maqbool, Professor, Department of Botany, University of Agriculture, Pakistan. Reviewers: (1) Jayath P. Kirthisinghe, University of Peradeniya, Sri Lanka. (2) Mohammed Mesnoua, Centre for Scientific and Technical Research on Arid Regions, Algeria. Complete Peer review History: http://www.sdiarticle3.com/review-history/51181 Received 18 June 2019 Accepted 27 August 2019 Published 02 September 2019 ABSTRACT Aims: The present work aims to assess hydric stress tolerance in cocona (Solanum sessiliflorum). Study Design: Four cocona genotypes were planted in completely randomized blocks design with three replicates. Each replicate was irrigated with different water volumes, tantamount to 50, 100 and 150% of evapotranspiration (ET) respectively. Place and Duration of Study: The present study was developed in National Institute of Amazonian Research at the agricultural experimental station, which is located on Km 14 AM-10 roadway, from September 2013 to April 2014. Methodology: The fruits were harvested each 15 days by three months. The assessed characters were plant stand, stem diameter, plant height, fruit yield, number of fruits per plant; fruit mass, length, diameter and length/diameter ratio. Results: Irrigation treatments, both 50 and 150% ET, reduced height plant, fruit mass and length. Other characters were no affected by the hydric stress. Conclusion: Cocona is tolerant to both hydric stress, being the major hydric stress effect fruit size and mass decreasing. Other studies must to be performed to determinate the hydric stress threshold which lead to decrease fruit yield and dead plant. Original Research Article