Fig. 1From: Exogenous melatonin alleviates PEG-induced short-term water deficiency in maize by increasing hydraulic conductanceEffects of melatonin (MEL, 1 μM) application and water deficiency stress (PEG) on photosynthetic rate (a), stomatal conductance (b), and transpiration rate (c) of maize seedlings after 3 h of 10% PEG-6000 treatment. Values are presented as the means ± SE (n = 6). Different letters indicate statistically significant differences at P < 0.05Back to article page