Production of Pepper Capsicum Chinense Under Differents Irrigation Depths in Greenhouse

Abstract

The aim of this work it was to study differents irrigation drip depths in peppers (Capsicum chinense) grown in a greenhouse, according to the daily reference evapotranspiration, to obtain the ideal irrigation depth for better development of this crop in Jataí, Goiás, Brazil. The experimental design was a completely randomized design with 4 treatments and 4 replications. The treatments consisted of four differents irrigation depths, corresponding to (L1: 33%, L2: 66%, L3: 100% and L4: 133%) the daily reference evapotranspiration. Each experimental unit consisted of 4 plants. Agronomic traits were evaluated, such as: plant height, height of the first fork, stem diameter at the base, stem diameter after the third leaf, fresh and dry matter. The irrigation depths of the treatments 1 (33%) and 2 (66%) showed inferior performance to the treatments 3 (100%) and 4 (133%) for all traits evaluated in this study. The treatments 3 (100%) and 4 (133%) showed the same performance for all traits evaluated in this study. So, the irrigation depth of the treatment 3 could be recommended for the irrigation management on pepper, considering the higher water use efficiency. Keywords