Fig. 6From: 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 root xylem osmotic potential of maize seedlings in hydroponic culture. All parameters were determined after 3 h of 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