Fig. 3From: 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 leaf relative water content (LRWC) (a), leaf water potential (b) and leaf osmotic potential (c) 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