ABACAXIZEIRO SUBMETIDO A DIFERENTES LÂMINAS DE IRRIGAÇÃO NO CERRADO

Abstract

Pineapple is a natural plant of the warm regions of South America which adapted very well to the Cerrado biome of the region of Goiás; despite its ability to adapt to drought, the use of irrigation is a fundamental factor to obtain higher productivity and fruit quality. The objective of this work was to evaluate the vegetative, productive characteristics and quality of Pérola pineapple fruits under different drip irrigation levels during the flowering period. The experiment was carried out at Goiano Federal Institute - Campus Ceres –state of Goiás, following a randomized complete block design with five treatments of the crop evapotranspiration by 0, 35, 55, 75 and 105% with four replications. The culture was run in double rows at spacing of 1 x 0.5 x 0.3 m. The variables evaluated were: peduncle height, leaf D length, number of seedlings, plant height, total leaf number, fresh matter weight, macronutrient concentration in leaves, fruit length with and without crown, fruit circumference, fruit mass with and without crown and productivity. There was no significant difference in height of stalk, length of leaf D, number of seedlings, macronutrient concentration in leaves, length of crownless fruit, concentration of total soluble solids and fruit yield per hectare. The variables plant height, total leaf number and fresh matter weight presented a linear behavior in relation to the irrigation levels. The circumference of the fruit is greater in the blade referring to 66,87% replacement of ETc. The length of the fruit with crown is bigger in the level corresponding to 70,86% of ETc replacement.