| 吲哚乙酸浓度(mg/L) | 均值(%) | 5%显著水平 | 1%极显著水平 |
| 0 (CK) | 10 | a | A |
| 100 | 20 | ab | A |
| 200 | 15 | a | A |
| 300 | 35 | ab | A |
| 400 | 45 | b | A |
| 500 | 45 | b | A |