Table 6.
Mean grain yield and yield benefit (t ha−1) of modified root systems and/or earlier sowing of a longer-season cultivar, or a combination of both for 100 years of simulation at eight sitesYield benefit is the difference between grain yield of cultivars with standard roots, sown in the conventional window.
Locationa | Annual reset | Continuous simulation | ||||||
---|---|---|---|---|---|---|---|---|
Mean yield(t ha−1) | Mean yield benefit (t ha−1) | Mean yield (t ha−1) | Mean yield benefit (t ha−1) | |||||
Standard | Mod | Early | Early, mod | Standard | Mod | Early | Early, mod | |
Wongan Hills, WA | 4.02 | 0.60 | 0.78 | 1.39 | 4.01 | 0.24 | 0.63 | 0.88 |
Dalby, QLD | 3.48 | 0.38 | −0.08 | 0.43 | 3.73 | −0.03 | −0.26 | −0.28 |
Cootamundra, NSW | 5.66 | 0.35 | 0.65 | 1.00 | 5.66 | 0.25 | 0.75 | 0.97 |
Ardlethan, NSW | 4.69 | 0.26 | 0.37 | 0.69 | 4.90 | 0.15 | 0.54 | 0.68 |
Harden, NSW | 5.59 | 0.16 | 0.37 | 0.52 | 5.60 | 0.10 | 0.40 | 0.51 |
Paskeville, SA | 3.76 | 0.08 | 0.03 | 0.09 | 3.73 | 0.03 | 0.08 | 0.12 |
Esperance, WA | 3.89 | 0.06 | 0.40 | 0.43 | 3.91 | 0.06 | 0.34 | 0.38 |
Birchip, VIC | 3.12 | 0.09 | 0.03 | 0.11 | 3.08 | 0.05 | 0.12 | 0.15 |
a Australian states listed are: QLD, Queensland; NSW, New South Wales; SA, South Australia; VIC, Victoria; WA, Western Australia.