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. 2019 Mar 19;19:107. doi: 10.1186/s12870-019-1710-5

Fig. 6.

Fig. 6

Effect of drought and/or DCPTA treatment on the gas exchange parameters in the maize leaves in 2016 and 2017. Pn, net photosynthetic rate (a); Gs, stomatal conductance (b); Tr, transpiration rate (c); Ci, intercellular CO2 concentration (d). The data represent the means of independent measurements with five replicates, and the standard deviations are indicated by the vertical error bars. Values with the same letters on the bars are not significantly different at P < 0.05 (LSD test)