| Predictor | Coef | SE Coef | T-Value | P-Value | VIF |
| Constant | −95.5 | 112.7 | −0.85 | 0.401 |
|
| Plant Heading | 0.40602 | 0.07270 | 5.59 | 0.000 | 1.1 |
| Panicle Length | 0.69141 | 0.07896 | 8.76 | 0.000 | 1.1 |