Interações entre nitrogênio e estresse hídrico alterando parâmetros reprodutivos do amendoim.

Abstract

Field study was conducted in peanut (Arachis hypogaea L.), cultivar PI 165-317, to evaluate changes in physiological processes and yield in response to different levels of soil water and nitrogen. There was no significantly differences among interactions between the two factors studied, water regime and nitrogen. However, the reduction in soil water availibility significantly reduced and producion of pegs weight of 100 fruits and yield (kg/10.000m2). The addition of nitrogen reduced the efficiency in root nodules formations, but it was not capable of improving peanut growth and development under water stress.