Response of orange Tree in irrigation levels - DOI: 10.4025/actasciagron.v26i2.1881

Abstract

The experiment was conducted at the Centro Técnico de Irrigação of Universidade Estadual de Maringá in Maringa, state of Paraná. Brasil, in order to study the effect of irrigation in the orange tree (Citrus sinensis Osbeck) yield. The experimental design was entirely randomized with for rates of irrigation (L₁= 10, L₂ = 15, L₃= 20 e L₄ = 25mm). Irrigation was performed through a drip and controlled according to the evapotranspiration of the crop, estimated by a Class A pan. The production of fruits, the medium weight of the fruits, the productivity of fruits and the amount of soluble solid produced by tree presented a quadratic relationship in function of the irrigation sheets and the tenor of soluble solids of the juice presented a lineal relationship in function of the treatments. The production of orange fruit, the fruit weight average and the production of orange fruit presented quadratic relationship in function of the application of the irrigation water.