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. 2022 Feb 11;11(2):359. doi: 10.3390/antiox11020359

Figure 2.

Figure 2

Root to shoot ratio, leaf area, root length and diameter, plant height, and stem diameter of maize seedlings under drought-stress conditions in combination with melatonin in different levels of nitrogen. CK; Well-watered control without melatonin (MT), DS; Drought stress without MT, MT; Drought stress + 100 µM MT, MT + N1; MT 100 µM + 200 kg N ha−1, MT + N2; MT-100 µM + 250 kg N ha−1, and MT + N3; MT-100 µM + 300 kg N ha−1. Vertical bars represent ± S.D. (n = 3, biological replicates). Different letters indicate significant differences as determined by the LSD test (p ≤ 0.05).