INDICAÇÃO GEOVITÍCOLA DE UVAS FINAS PARA A MICRORREGIÃO DE PIRES DO RIO-GO, BRASIL

Abstract

The Pires do Rio microregion is located in the Southeast of the State of Goiás and is made up of the municipalities: Cristianópolis; Gameleira de Goiás; Orizona; Palmelo; Pires do Rio; Santa Cruz de Goiás; São Miguel do Passa Quatro; Sylvania; Urutaí and Vianópolis. Despite the prevalence of agricultural activities aimed at raising animals and cultivating crops in the countryside, vine cultivation is an alternative for diversifying species, offering jobs in the countryside and generating income. In this context, the present study aimed to evaluate the geoviticultural suitability of the Pires do Rio microregion, through the application of the Geoviticultural Multicriteria Climatic Classification System (CCM), using the heliothermal (IH), night cold (IF) and drought (IS) indices. Meteorological data from an automatic meteorological station over a period of ten years were analyzed, aiming to characterize the climatic conditions during the vine's production cycle under the double pruning system. The results demonstrated that the values obtained for the geoviticultural indices place the microregion in favorable conditions for the production of fine grapes of high oenological quality, with adequate thermal availability, mild night temperatures during maturation and reduced rainfall during the harvest period. The combination of the IH, IF and IS indices confirmed the feasibility of adopting double pruning management for the region, providing conditions similar to those observed in other fine wine producing areas in the world. Furthermore, the results made it possible to identify and characterize a new viticultural terroir in the Cerrado of Goiás.