Fig. 3.

Photosynthetic parameters in Nicotiana tabacum under different types of water (D, MD, MT, T). a Photosynthetic rate [μmol(CO²) m⁻² s⁻¹]. b Stomatal conductance [mol m⁻² s⁻¹]. c Transpiration rate [nmol m⁻² s⁻¹]. The average mean and standard error were plotted