RESUMO-
PRODUCTIVITY OF GREEN CORN UNDER DIFFERENT WATER MANAGEMENT SYSTEMSABSTRACT -The cultivation of irrigated green corn is growing in the Northeast region of Brazil and there is a strong demand. However, there is a need for technical and scientific information on the proper management of irrigation. The aim of this study was to evaluate the effect of different irrigation levels on the yield components and productivity of green ears double hybrid commercial AG 1051, at conditions of Teresina, Piauí, Brazil. The treatments were arranged in a randomized block design with four replications, consisted of five irrigation 165.51, 208.85, 255.32, 304.39 and 340.57 mm. During the experiment, rainfall did not exceed 17 mm, relative humidity remained in the range of 62% to 68% and the minimum, medium and maximum temperatures showed a variation between 22 °C and 35 °C. Productivity results of green spike with and without straw were 13,453.13 kg ha -1 and 8,465.62 kg ha -1 respectively obtained with the irrigation depth of 340, 57 mm. The components of production length and diameter of spike with and without straw, average grains per spike and number of grains per row were the best that contributed to these results.