Table 5.
Significant correlations (p < 0.10) of agronomic traits with time (Year) and between traits and annual weather variables, for spring wheat (SW) and winter wheat (WW).
| Trait or time | Growth habit | WV* or Trait | Regression equation | Slope (units) | SE~ | R 2 | p-value | Years |
|---|---|---|---|---|---|---|---|---|
| Year | SW | HLW | y = − 0.382Year + 849.6 | −0.382 (kg hL−1) | 0.11 | 0.48 | 0.0041 | 15 |
| WW | DH | y = − 0.815Year + 1845.9 | −0.815 (days) | 0.29 | 0.27 | 0.0153 | 15 | |
| HLW | SW | TM | y = − 1.932TM + 120.6 | −1.932 (kg hL−1) | 1.09 | 0.19 | 0.0995 | 15 |
| TA | y = − 3.129TA + 125.5 | −3.129 (kg hL−1) | 1.55 | 0.23 | 0.0647 | 15 | ||
| WW | Tm | y = − 6.977Tm + 121.1 | −6.977 (kg hL−1) | 2.41 | 0.55 | 0.0229 | 9 | |
| P | y = − 5.728P + 84.3 | −5.728 (kg hL−1) | 1.51 | 0.67 | 0.0069 | 9 | ||
| DH | SW | Tm | y = − 8.145Tm + 196.1 | −8.145 (days) | 3.47 | 0.30 | 0.0355 | 15 |
| WW | TA | y = − 12.490TA + 305.7 | −12.490 (days) | 3.72 | 0.62 | 0.0122 | 9 |
* , weather variables; ~, standard error.
HLW, Hectoliter weight; and DH, days to heading; Tm, minimum temperature; TA, average temperature; TM, maximum temperature and P, rainfall.
Probability values in bold with 0.05 < p < 0.10.