Table 3.
Average effects of nine gametocides on the fertility of six Brassica napus cultivars
| Chemical | Dose mg/ha | Percentage of male sterile plant | SD | Self-pollinated seed-setting rate | SD | Seed-setting rate under open pollination | SD |
|---|---|---|---|---|---|---|---|
| Chlorsulfuron | 60 | 97.15 | 3.62 | 0.05 | 0.19 | 83.65 | 7.77 |
| Chlorsulfuron | 120 | 100.00 | 0.00 | 0.00 | 0.00 | 61.31 | 8.38 |
| Halosulfuron methyl | 300 | 98.09 | 2.69 | 1.17 | 1.07 | 72.70 | 10.97 |
| Halosulfuron methyl | 600 | 100.00 | 0.00 | 0.00 | 0.00 | 46.15 | 8.98 |
| Sulfosulfuron | 400 | 99.40 | 1.44 | 0.00 | 0.00 | 86.87 | 6.47 |
| Sulfosulfuron | 600 | 100.00 | 0.00 | 0.00 | 0.00 | 59.92 | 11.09 |
| Triflulsulfuron-methyl | 500 | 96.97 | 3.09 | 0.88 | 0.65 | 90.11 | 7.84 |
| Triflulsulfuron-methyl | 750 | 100.00 | 0.00 | 0.00 | 0.02 | 76.81 | 8.27 |
| Nicosulfuron | 200 | 98.95 | 2.07 | 0.00 | 0.01 | 78.22 | 8.12 |
| Nicosulfuron | 300 | 100.00 | 0.00 | 0.00 | 0.00 | 68.70 | 9.02 |
| Pyrazosulfuron-ethyl | 150 | 89.73 | 4.89 | 5.36 | 4.42 | 87.06 | 20.58 |
| Pyrazosulfuron-ethyl | 225 | 99.90 | 0.43 | 0.00 | 0.00 | 62.00 | 7.76 |
| Imazethapyr | 750 | 90.60 | 3.05 | 2.15 | 1.27 | 98.21 | 9.48 |
| Imazethapyr | 1125 | 99.79 | 0.62 | 0.00 | 0.00 | 74.52 | 8.72 |
| Imazamox | 400 | 93.13 | 5.08 | 1.53 | 1.61 | 105.20 | 10.00 |
| Imazamox | 600 | 98.98 | 1.98 | 0.00 | 0.02 | 86.46 | 6.39 |
| TBM | 60 | 99.71 | 0.84 | 0.01 | 0.02 | 84.02 | 7.57 |
| TBM | 120 | 100.00 | 0.00 | 0.00 | 0.00 | 65.52 | 8.09 |
| Control | 0.0 | 0.00 | 0.00 | 100.00 | 0.00 | 100.00 | 0.00 |