EFFICIENCY IN WATER USE AND YIELD OF OKRA (Abelmoschus esculentus) IN RESPONSE TO DIFFERENT LEVELS OF IRRIGATION - DOI: 10.7127/rbai.v11n500790

Resumo

The objective of this work was to determine the irrigation levels that result in the maximum productivity and efficient use of water for the cultivation of okra. The experiment had five irrigation levels (Twenty-five, Fifty, Seventy-five, One handred and One hundred and twenty five per cent of crop evapotranspiration-ETc) and a control plot that did not receive irrigation. The experimental design was in randomized blocks, with four replications. Irrigations were applied through a drip system and for irrigation management, the FAO Penman-Monteith standard method was used to estimate the reference evapotranspiration, and crop evapotranspiration was obtained through a constant water table lysimeter installed in the area experimental. The productivity was obtained considering the production of the useful area of each plot with subsequent conversion to kg.ha-1. The efficiency of water use was determined by dividing the amount produced in kg of fruits per millimeter of water applied in okra culture. The application of different irrigation levels influenced in a significant way the variables analyzed in this experiment.