Table 3.
Comparison of the slope of actual yield trends to attainable yield changes for the top wheat producing countries.
| Country | Slope of the actual yield increase (kg ha−1 year−1) | Slope of attainable yield increase (kg ha−1 year−1) |
|---|---|---|
| China | 88.3 (1.8) | 99.8 (2.0) |
| India | 44.8 (1.14) | 57.6 (1.2) |
| United States | 25.6 (0.5) | 27.7 (0.6) |
| Russia Federation | 43.9 (1.2) | 48.7 (1.25) |
| France | 83.4 (1.1) | 125.9 (1.3) |
| Canada | 31.7 (0.6 | 41.8 (0.9) |
| Germany | 93.4 (2.1) | 112.0 (2.1) |
| Australia | 15.2 (0.3) | 21.4 (0.4) |
| Pakistan | 38.9 (0.7) | 41.8 (1.1) |
| Turkey | 27.3 (0.7) | 28.9 (0.9) |
Standard errors are shown in parentheses.