Production and post-harvest of the "Keitt" mango submitted to irrigation depths in the northeastern semi-arid

Abstract

Considering the expression of the cultivated area with mangoes in the irrigated poles of the northeast and the scarcity of information to maximize its production, the objective of this work was to evaluate the productive and qualitative parameters of the 'Keitt' mango submitted to different irrigation depths, in the region of Ipanguaçu – RN. The experimental design consisted of randomized blocks with 5 irrigation depths (40, 60, 80, 100 e 120% of crop evapotranspiration (ETc)) and 5 replicates, using 4 plants per experimental plot in two crop cycles. Was evaluated the number of fruits per plant (NF), average fruit weight (PMF), productivity (PT), soluble solids content (SS) and titratable acidity (AT). The maximum estimated PT were obtained with the irrigation depth of 91.9 and 85.5% of ETc, in the first and second cycle, respectively. The PMF in the 1nd cycle was estimated at 0.69 kg with irrigation depth of 120% of the ETc and in the 2nd cycle the maximum PMF was estimated at 0.75 kg with irrigation depths of 107.5% of the ETc. Deficit and water excess limited SS and TA in both cycles. The mangoes from the west side of the plant presented higher titratable acidity than those from the nascent side.