Table 6.
Pearson correlation coefficients between rainfall (mm) and site means for grain yield, quality and composition (excluding spring sown trial, environment 8).
| Variable | December to April Cumulative Rainfall |
March to July Cumulative Rainfall |
June Cumulative Rainfall |
June and July Cumulative Rainfall |
November Mean Monthly Temperature | March mean Monthly Temperature | July Mean Monthly Temperature | June Cumulative Radiation | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Yield (t ha−1) | −0.042 | −0.772 | *** | −0.788 | *** | −0.768 | *** | −0.448 | * | −0.422 | 0.404 | 0.467 | * | |||
| Groat content (%) | −0.441 | * | −0.179 | −0.217 | −0.137 | −0.385 | −0.121 | −0.062 | −0.361 | |||||||
| Hullability (%) | −0.169 | 0.758 | *** | 0.739 | *** | 0.803 | *** | 0.454 | * | 0.612 | ** | −0.481 | * | −0.485 | * | |
| Hectoliter weight $ (kg hL−1) | −0.234 | −0.715 | *** | −0.545 | * | −0.611 | ** | −0.625 | ** | −0.414 | 0.110 | 0.170 | ||||
| Grain number m−2 | 0.039 | −0.680 | *** | −0.718 | *** | −0.698 | *** | −0.296 | −0.339 | 0.492 | * | 0.551 | ** | |||
| TGW (g) | −0.222 | −0.099 | −0.072 | −0.065 | −0.357 | −0.116 | −0.266 | −0.312 | ||||||||
| Grain width (mm) | −0.268 | 0.249 | 0.278 | 0.313 | −0.050 | 0.164 | −0.531 | * | −0.516 | ** | ||||||
| Grain length (mm) | −0.059 | −0.477 | * | −0.560 | ** | −0.539 | * | −0.202 | −0.634 | ** | 0.297 | 0.103 | ||||
| Grain roundness | −0.047 | 0.526 | * | 0.612 | ** | 0.607 | ** | 0.175 | 0.634 | ** | 0.472 | * | 0.287 | |||
| Grain protein (%) | −0.727 | *** | −0.174 | −0.122 | −0.002 | −0.171 | 0.015 | 0.080 | −0.254 | |||||||
| Grain β-glucan (%) | 0.260 | −0.730 | *** | −0.800 | *** | −0.846 | *** | −0.633 | ** | −0.553 | ** | 0.605 | ** | 0.594 | ** | |
| Grain oil (%) | 0.109 | −0.114 | 0.006 | −0.031 | −0.004 | 0.187 | −0.139 | 0.290 | ||||||||
*** p < 0.001, ** p < 0.01, * p < 0.05; 19 degrees of freedom. $, 17 degrees of freedom.