PEPINO SOB NÍVEIS DE REPOSIÇÃO HÍDRICA EM AMBIENTE PROTEGIDO

Abstract

Cucumber (Cucumis sativus L.) is an oleraceus tree that has grown in commercial importance and, for that, irrigation management is of fundamental importance, to guarantee a good performance of the crop, both in quantity and in quality. In view of the above, the objective of this work was to evaluate the development and productivity of cucumbers for preserves grown in a protected environment under different levels of water replacement. The experiment was carried out between the months of August and December 2019, in a greenhouse located in the experimental area of the Federal Goiano Institute - Campus Ceres. The experimental design used was randomized blocks (DBC), with four replications, whose plots were composed of five levels of water replacement (40%, 60%, 80%, 100% and 120% of ETc). The highest productivity and efficiency of water use was obtained with water replacement of 120% of the crop's evapotranspiration. However, the increase in water replacement reduced the levels of soluble solids. The results confirmed that severe water stress has a negative effect on cucumber yield. It is strongly observed that a precise control of the level of water replacement can improve the management of irrigation in the culture of cucumber.