Table 1 Effect of the interaction between irrigation regimes and soil application of humic acid on broccoli vegetative growth during the 2020–21 and 2021–22 seasons. Values represent mean ± standard deviation. Means followed with similar letters within the same column are not different significantly at P < 0.05 level of probability based on the LSD test.
From: Mitigation of water stress in broccoli by soil application of humic acid
Treatments | Plant fresh wt (g) | Plant height (cm) | No. leaves plant−1 | Leaf area (cm2 plant−1) | |||||
|---|---|---|---|---|---|---|---|---|---|
Irrigation | Humic acid (kg ha-1) | 2020–21 | 2021–22 | 2020–21 | 2021–22 | 2020–21 | 2021–22 | 2020–21 | 2021–22 |
Well-watered | 0 | 1472 ± 53.0 c | 1431 ± 39.0 c | 72.1 ± 1.7 c | 71.5 ± 1.9 c | 20.2 ± 1.1 c | 19.7 ± 0.6 c | 7045 ± 162 c | 6930 ± 124 c |
4.8 | 1586 ± 55.6 b | 1555 ± 47.0 b | 75.4 ± 1.9 b | 74.5 ± 1.4 b | 21.3 ± 0.9 b | 20.9 ± 0.4 b | 7483 ± 203 b | 7245 ± 120 b | |
9.6 | 1709 ± 57.0 a | 1691 ± 47.5 a | 79.3 ± 1.8 a | 78.2 ± 1.0 a | 22.5 ± 0.6 a | 22.1 ± 0.3 a | 7842 ± 203 a | 7653 ± 148 a | |
Drought | 0 | 1134 ± 41.0 f | 1120 ± 30.5 f | 57.3 ± 1.2 f | 56.8 ± 1.9 f | 15.6 ± 0.4 f | 15.4 ± 1.1 f | 4389 ± 103 f | 4147 ± 72 f |
4.8 | 1269 ± 46.5 e | 1212 ± 34.5 e | 63.6 ± 1.4 e | 62.4 ± 1.6 e | 17.1 ± 0.7 e | 16.7 ± 0.8 e | 5425 ± 139 e | 5125 ± 62 e | |
9.6 | 1306 ± 45.5 d | 1326 ± 43.2 d | 68.7 ± 1.7 d | 67.8 ± 1.8 d | 18.7 ± 0.8 d | 18.3 ± 0.7 d | 6464 ± 161 d | 6296 ± 102 d | |
LSD | 6.8 | 12.9 | 0.43 | 0.63 | 0.18 | 0.60 | 79.3 | 51.0 | |
