Table 2.
Effect of melatonin (0.0, 2.5, 5 and 7.5 mM) on growth parameters of two flax varieties under different water irrigation requirements (combined data of two seasons)
| Varieties | WIR | Melatonin (mM) | Plant height (cm) | Shoot fresh wt. (g) | Shoot dry wt. (g) | Root length (cm) | Root fresh wt. (g) | Root dry wt. (g) |
|---|---|---|---|---|---|---|---|---|
| Letwania-9 | 100 | 0 | 63 ± 0.33 | 3.37 ± 0.33 | 1.40 ± 0.09 | 7 ± 0.33 | 0.53 ± 0.06 | 0.31 ± 0.01 |
| 2.5 | 74 ± 4.93 | 7.03 ± 0.33 | 2.08 ± 0.14 | 9 ± 0.58 | 1.44 ± 0.14 | 0.35 ± 0.03 | ||
| 5.0 | 78 ± 2.67 | 9.43 ± 1.20 | 3.26 ± 0.24 | 10 ± 0.33 | 1.59 ± 0.08 | 0.37 ± 0.04 | ||
| 7.5 | 70 ± 1.33 | 7.27 ± 0.58 | 2.84 ± 0.28 | 8 ± 0.58 | 1.43 ± 0.08 | 0.33 ± 0.00 | ||
| 75 | 0 | 57 ± 1.00 | 3.07 ± 0.50 | 0.97 ± 0.03 | 11 ± 0.57 | 0.79 ± 0.12 | 0.40 ± 0.03 | |
| 2.5 | 70 ± 3.00 | 5.53 ± 0.61 | 1.61 ± 0.22 | 16 ± 0.57 | 1.45 ± 0.02 | 0.48 ± 0.00 | ||
| 5.0 | 74 ± 1.15 | 6.93 ± 0.09 | 2.08 ± 0.24 | 16 ± 0.33 | 1.58 ± 0.12 | 0.52 ± 0.00 | ||
| 7.5 | 73 ± 1.53 | 4.23 ± 0.71 | 1.78 ± 0.36 | 15 ± 0.33 | 1.78 ± 0.12 | 0.47 ± 0.02 | ||
| 50 | 0 | 54 ± 1.53 | 2.77 ± 0.49 | 0.80 ± 0.09 | 12 ± 0.58 | 1.29 ± 0.14 | 0.48 ± 0.01 | |
| 2.5 | 61 ± 0.88 | 3.67 ± 0.19 | 1.25 ± 0.09 | 13 ± 0.33 | 1.41 ± 0.07 | 0.45 ± 0.01 | ||
| 5.0 | 67 ± 2.03 | 5.60 ± 0.10 | 1.94 ± 0.18 | 15 ± 0.58 | 1.77 ± 0.11 | 0.50 ± 0.01 | ||
| 7.5 | 63 ± 2.40 | 3.33 ± 0.41 | 1.55 ± 0.14 | 16 ± 0.58 | 1.87 ± 0.06 | 0.49 ± 0.00 | ||
| Sakha-2 | 100 | 0 | 64 ± 0.88 | 2.60 ± 0.06 | 0.91 ± 0.04 | 7 ± 0.58 | 0.53 ± 0.04 | 0.18 ± 0.02 |
| 2.5 | 71 ± 2.03 | 6.63 ± 0.41 | 1.86 ± 0.17 | 9 ± 0.33 | 1.37 ± 0.19 | 0.24 ± 0.01 | ||
| 5.0 | 80 ± 0.58 | 7.33 ± 0.55 | 2.22 ± 0.13 | 12 ± 0.33 | 2.00 ± 0.15 | 0.26 ± 0.01 | ||
| 7.5 | 69 ± 2.19 | 4.97 ± 0.12 | 1.62 ± 0.27 | 11 ± 0.58 | 1.96 ± 0.03 | 1.97 ± 0.05 | ||
| 75 | 0 | 54 ± 1.86 | 2.17 ± 0.11 | 0.69 ± 0.01 | 12 ± 0.33 | 0.62 ± 0.03 | 0.15 ± 0.02 | |
| 2.5 | 68 ± 0.88 | 3.33 ± 0.07 | 1.38 ± 0.02 | 12 ± 0.33 | 0.77 ± 0.06 | 0.22 ± 0.01 | ||
| 5.0 | 74 ± 3.06 | 4.60 ± 0.00 | 1.68 ± 0.85 | 14 ± 0.33 | 0.99 ± 0.07 | 0.26 ± 0.01 | ||
| 7.5 | 70 ± 2.65 | 3.20 ± 0.26 | 1.35 ± 0.01 | 15 ± 1.00 | 1.46 ± 0.16 | 0.31 ± 0.00 | ||
| 50 | 0 | 44 ± 1.76 | 1.60 ± 0.07 | 0.44 ± 0.03 | 15 ± 0.33 | 1.01 ± 0.07 | 0.15 ± 0.01 | |
| 2.5 | 61 ± 1.53 | 2.43 ± 0.03 | 0.85 ± 0.05 | 15 ± 0.33 | 2.16 ± 0.33 | 1.66 ± 0.07 | ||
| 5.0 | 65 ± 1.86 | 3.57 ± 0.15 | 0.99 ± 0.02 | 15 ± 0.33 | 3.96 ± 0.15 | 0.31 ± 0.03 | ||
| 7.5 | 61 ± 1.76 | 3.07 ± 2.33 | 0.88 ± 0.02 | 15 ± 0.33 | 3.53 ± 0.21 | 0.27 ± 0.15 | ||
| LSD0.05 | 3.13 | 0.45 | 0.35 | 1.10 | 0.28 | 0.05 | ||
Each value represents the mean of three replicates ± SE