A: Net assimilation rate.; E: Transpiration rate.; gs: Stomatal conductance.; rs: Stomatal resistance.; WUE: Water Use Efficiency
TABLE 4 The effects of redroot pigweed leachate on photosynthetic pigments content of cucumber and wheat plants. The data represent the mean of three replications ±S D and different letters in each parameter for each species indicate significantly different values at p ≥0.01