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Table 1 Effect of melatonin on root characteristics, biomass, and relative water content (RWC %) of maize seedling under drought stress condition

From: Ameliorative effect of melatonin improves drought tolerance by regulating growth, photosynthetic traits and leaf ultrastructure of maize seedlings

Treatments

Root Fresh Weight (g)

Root Dry Weight (g)

Root Diameter (mm)

Root Length (cm plant−1)

Above Dry Matter (g plant−1)

Root/Shoot Ratio

RWC (%)

CKW

10.21 ± 0.65a

0.96 ± 0.07a

1.66 ± 0.05a

911.01 ± 18.76a

22.61 ± 1.22a

0.043

97.15 ± 2.52a

CKD

7.76 ± 0.23d

0.61 ± 0.03c

1.23 ± 0.03d

662.33 ± 32.51e

14.77 ± 0.65d

0.041

73.96 ± 0.99d

MT1

8.89 ± 0.32c

0.70 ± 0.50c

1.29 ± 0.04d

718.03 ± 21.75d

16.83 ± 0.68c

0.042

80.62 ± 1.48c

MT2

9.62 ± 0.34b

0.89 ± 0.03ab

1.50 ± 0.03b

854.95 ± 27.12b

19.03 ± 0.95b

0.047

89.72 ± 2.61b

MT3

9.07 ± 0.29bc

0.81 ± 0.60b

1.38 ± 0.02c

808.47 ± 15.13c

18.96 ± 0.77b

0.043

86.57 ± 1.32b

  1. Melatonin application as a soil drenching: CKW; indicate Melatonin 0 μM + Control well water, CKD; Melatonin 0 μM + Control drought stress, MT1; Melatonin 50 μM + drought stress, MT2; Melatonin 100 μM + drought stress; MT3; Melatonin 150 μM + drought stress. Data are shown as the mean ± S.D. each treatment replicated three times (n = 3). Different letters indicate a significant difference among the treatments at P ≤ 0.05