| Step | 1 | 2 |
| Constant | 253.38 | −95.54 |
| Panicle Length | 0.807 | 0.691 |
| T-Value | 8.30 | 8.76 |
| P-Value | 0.000 | 0.000 |
| Plant Heading |
| 0.406 |
| T-Value |
| 5.59 |
| P-Value |
| 0.000 |
| R-Sq | 58.91 | 75.30 |
| R-Sq (Adj) | 58.06 | 74.25 |