| Treatment | 1-MCP | Ethephon | Plant height | Main stem nodes | ||
| 2011 | 2012 | 2011 | 2012 | |||
| g a.i. ha−1 | mL∙ha−1 | cm | ||||
| 1 | 0 | 0 | 71.53b | 73.42bc | 28.87b | 24.67bc |
| 2 | 0 | 146 | 75.20ab | 72.32bc | 28.67b | 24.13c |
| 3 | 0 | 292 | 71.67b | 72.50bc | 28.60b | 24.07c |
| 4 | 0 | 438 | 71.20b | 70.58c | 27.47b | 23.93c |
| 5 | 10 | 0 | 73.60ab | 74.27ab | 28.80b | 25.93a |
| 6 | 10 | 146 | 77.40a | 71.70bc | 30.93a | 24.47c |
| 7 | 10 | 292 | 75.13ab | 73.72abc | 29.27ab | 25.13abc |
| 8 | 10 | 438 | 74.60ab | 77.30a | 29.20ab | 25.80ab |
| LSD (0.05) | 5.08 | 1.45 | 2.00 | 1.25 | ||
| Orthogonal contrast | ||||||
| Ethephon vs. ethephon + 1-MCP | * | * | ** | ** | ||
| 1-MCP vs. 1-MCP absent | * | * | * | * | ||
| Control vs. ethephon | NS | NS | NS | NS | ||
| 1-MCP vs. 1-MCP + ethphon | NS | NS | NS | NS | ||
| Ethephon vs. ethephon absent | NS | NS | NS | NS | ||