Fig 6.

Relative water content (a), electrolyte leakage index (b), chlorophyll (Chl) a+b (c), plant height (d) of pre-sprouted sugarcane seedlings under absence (control) and presence (−0.6 MPa) of water deficit (WD) in the short-term and under three forms of Si supply (Si via nutrient solution [SiR], Si via foliar spraying [SiL], and Si absence [-Si]). ** and *: significant at 1 and 5% probability, respectively; ^ns: non-significant by the F-test. Lowercase letters show differences in Si forms and uppercase letters between WD levels by the Tukey’s test. Bars represent the standard error of the mean; n = 6.