Figure 1.
Figure 2.
Figure 3.
Effects of different bioactive substances on the salt resistance of melon seeds_
| Treatment | Bioactive substance | Germination rate (%) | GI | Vigour index | Root length (mm) | Seedling height (mm) |
|---|---|---|---|---|---|---|
| CK | CK | 80.0 c | 12.7 c | 20.2 c | 15.9 b | 10.8 a |
| 1 | SW | 83.3 b | 15. 1 a | 27.3 a | 18.1 a | 11.1 a |
| 2 | DA-6 | 85.0 a | 13.9 b | 25.3 a | 18.2 a | 10.4 ab |
| 3 | BR | 86.7 a | 14.9 ab | 25.9 a | 17.5 ab | 10.9 a |
| 4 | HA | 86.7 a | 15.0 a | 23.7 b | 15.8 b | 11.0 a |
Effects of different bioactive substances on melon seed germination_
| Treatment | Concentration (mg · L−1) | Germination potential (%) | Germination rate (%) | GI | Vigour index | Radicle length (mm) | Hypocotyl length (mm) |
|---|---|---|---|---|---|---|---|
| CK | 0 | 86.5 c | 93.5 ab | 26.5 a | 210.3 b | 79.3 b | 10.4 b |
| SW-1 | 100 | 81.5 d | 85.0 b | 25.2 b | 198.8 b | 78.9 b | 10.2 b |
| SW-2 | 200 | 90.0 b | 91.5 b | 26.6 a | 181.7 c | 68.2 c | 12.3 a |
| SW-3 | 500 | 85.0 c | 90.5 b | 26.6 a | 215.8 a | 81.1 a | 12.1 a |
| SW-4 | 1000 | 85.0 c | 88.5 c | 26.7 a | 220.7 a | 82.7 a | 10.8 b |
| SW-5 | 1500 | 80.0 d | 88.5 c | 25.2 b | 194.4 b | 77.1 b | 8.9 c |
| DA-6-1 | 1 | 88.5 c | 98.5 a | 27.0 b | 216.5 b | 80.2 b | 11.5 a |
| DA-6-2 | 5 | 88.5 c | 93.5 ab | 27.9 a | 233.7 b | 83.8 b | 11.4 a |
| DA-6-3 | 10 | 95.0 a | 98.5 a | 29.0 a | 275.0 a | 95.0 a | 11.8 a |
| DA-6-4 | 15 | 86.5 c | 91.5 b | 27.3 b | 203.5 c | 74.5 c | 9.2 b |
| DA-6-5 | 50 | 83.5 d | 91.5 b | 26.4 b | 207.9 b | 78.7 b | 9.3 b |
| BR-1 | 0.1 | 88.5 c | 95.0 a | 25.7 b | 207.2 b | 80.7 b | 10.8 b |
| BR-2 | 0.2 | 88.5 c | 91.5 b | 28.0 a | 241.6 a | 86.4 a | 11.4 ab |
| BR-3 | 0.5 | 91.5 b | 95.0 a | 27.4 ab | 229.0 a | 83.6 a | 11.2 b |
| BR-4 | 1 | 80.0 d | 91.5 b | 23.6 b | 163.5 c | 69.3 c | 10.5 b |
| BR-5 | 10 | 90.0 b | 95.0 a | 27.2 ab | 224.8 a | 82.6 a | 12.6 a |
| HA-1 | 1 | 83.5 d | 85.0 c | 25.5 a | 186.1 c | 73.0 c | 9.1 c |
| HA-2 | 5 | 80.0 d | 83.5 d | 24.7 ab | 188.2 c | 76.3 b | 10.5 b |
| HA-3 | 10 | 80.0 d | 85.0 c | 24.7 ab | 189.7 c | 76.9 b | 9.9 c |
| HA-4 | 15 | 86.5 c | 90.0 b | 26.2 a | 205.2 b | 78.3 b | 10.9 b |
| HA-5 | 50 | 86.5 c | 91.5 b | 26.7 a | 217.4 a | 81.5 a | 12.0 a |
Different concentrations of growth-active substances under salt stress_
| Bioactive substances | Concentration (mg · L−1) | ||||
|---|---|---|---|---|---|
| SW | 100.00 | 200.00 | 500.00 | 1000.00 | 1500.00 |
| DA-6 | 1.00 | 5.00 | 10.00 | 15.00 | 50.00 |
| BR | 0.10 | 0.20 | 0.50 | 1.00 | 10.00 |
| HA | 1.00 | 5.00 | 10.00 | 15.00 | 50.00 |