Fig. 8From: 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 the root aquaporin gene expression level of maize seedlings in hydroponic culture. Root was sampled after 3 h and 6 h of PEG-6000 treatment. Values are presented as the means ± SE (n = 4). Different letters indicate statistically significant differences at P < 0.05Back to article page