Abstract
The project will be performed in glasshouse at Luiz de Queiroz College of Agriculture with the purpose of evaluate the influence of reducing water potential on carbon assimilation on rice ( Orya sativa). Plantas of rice variety IRGA 424 will be grown in pots and the treatments 0; -30; -60; -90; -120; -150 kPa will be applied from 15 days to 70 after emergence (DAE). The plants will be cul…