SECAMENTO PARCIAL DA ZONA RADICULAR NA BANANEIRA ‘GRAND NAINE’ NO SEMIÁRIDO DO NORTE DE MINAS GERAIS

Abstract

The deficit irrigation allows the reduction of about 50% of the water use and is an alternative whose feasibility should be a goal for research. Thus, this work aimed to define the feasibility of using of the partial root-zone drying for banana cv Grand Naine under the edaphoclimatic conditions of the Northern of Minas Gerais. The study evaluated three frequencies of irrigated-side shifting of plant row, added up to one-side irrigation condition, all sides with reduction of 50% of the irrigation blade calculated and with both sides of the plants row irrigated with 100% of the irrigation blade calculated. Soil and water management indicators and leaf stomatal conductance of the treatments were evaluated and variables of production and post-harvest fruit quality, as well. Results indicated the feasibility of the use of partial root-zone drying for banana cv grand Naine with 50% reduction of irrigation blade and the frequencies of 7 and 14 days for irrigated-side shifting of plant row. The post-harvest fruit quality was not influenced by the transient water stress provided by treatments.