Fig. 1
Photosynthetic traits of Bermuda grass verities under drought stress. Means ± SE are provided. Bars sharing same lowercase letters are not-significant (p ≤ 0.05) in response to control and drought conditions. (a) The net CO2 assimilation rate (Pn), (b) the transpiration rate (E), (c) the stomatal conductance (gs), (d) the water use efficiency