evaluated the sugarcane variety IAC91-5155 under water stress and observed a trehalose accumulation of 25.9% (increase of 0.54 μmol g–1 fresh mass weight) at the 60th day under stress, reaching concentrations of trehalose of 2.54 μmol g–1 of the fresh weight. There is a distinction among cultivars regarding the ability of trehalose biosynthesis, regardless of the level of soil moisture and period under stress