| Regression parametersa (±SE) | Predicted tolpyralate + atrazine dose | ||||
Variable | a | b | c | ED50 | ED80 | ED95 |
Control | --------------- % --------------- |
| ------------------- g ai ha−1 ------------------ | |||
2 WAA | 95 (2.7) | 26 (3.3) | - | 4 + 136 | 20 + 671 | Non-est. |
4 WAA | 89 (2.9) | 24 (3.5) | - | 5 + 157 | 32 + 1077 | Non-est. |
8 WAA | 91 (3.4) | 20 (3) | - | 6 + 186 | 33 + 1112 | Non-est. |
12 WAA | 92 (3.5) | 23 (3.7) | - | 5 + 160 | 28 + 915 | Non-est. |
| ---------- Plants m−2 ---------- |
|
|
|
| |
Density | 99 (46.9) | 634 (100.2) | 0.25 (0.1) | 3 + 113 | 10 + 339 | Non-est. |
| ------------- g·m−2 ------------- |
|
|
|
| |
Biomass | 41 (14.6) | 325 (31.5) | 0.27 (0.06) | 3 + 104 | 9 + 292 | Non-est. |
| --------------- % --------------- |
|
|
|
| |
Grain yield | 88 (4.3) | 109 (65.9) | - | 1 + 35 | 8 + 263 | Non-est. |