Potencial de água na folha de cafeeiro irrigado com e sem eletromagnetização

Abstract

The water potential in the leaf describes the energy status of the plant, whose gradients explain the water fluxes in the soil - plant - atmosphere system, so it is of great importance to monitor the water status and the water stress dynamics of crops of economic interest as the coffee tree. The experiment evaluated the potential of water in the irrigated coffee leaf when submitted to different magnetized water slides in Monte Carmelo, Minas Gerais. Irrigations were made in 8 coffee lines, 4 using non-magnetized water and 4 magnetized, and in the second treatment we used magnetized water slides of 50%, 75%, 100% and 125%. Sixty-six leaves of the experiment were analyzed in advance and analyzed for their water potential in the leaf by the Scholander chamber. The water potential in the leaf showed no significant difference between the treatments and the slides in the period of higher precipitations. However, during periods of water deficit, the treatment of electromagnetized water had positive data and between the slides a of 100% and 125% were more successful.