Table 7.
Sensitivity of D. ciliaris var. chrysoblephara to other herbicides.
| Herbicide | Recommended dose (g a.i.ha−1) |
Population | GR50+SE (g a.i.ha−1) |
Susceptibility | RI |
|---|---|---|---|---|---|
| Cyhalofop-butyl | 62.1 | JSS-19 | 10.69 ± 0.15 | S | – |
| JYX-8 | 233.46 ± 5.51 | R | 21.83 | ||
| JTX-98 | 157.8 ± 18.27 | R | 14.76 | ||
| JTX-99 | 185.0 6 ± 7.5 | R | 17.31 | ||
| Fenoxaprop-P-ethyl | 105 | JSS-19 | 12.15 ± 1.27 | S | – |
| JYX-8 | 174.47 ± 6.87 | R | 14.36 | ||
| JTX-98 | 139.57 ± 6.33 | R | 11.79 | ||
| JTX-99 | 151.46 ± 8.59 | R | 12.47 | ||
| Penoxsulam | 30 | JSS-19 | 101.64 ± 4.20 | R | / |
| JYX-8 | 185.43 ± 14.95 | R | / | ||
| JTX-98 | 118.71 ± 4.56 | R | / | ||
| JTX-99 | 156.55 ± 11.73 | R | / | ||
| Bispyribac-sodium | 45 | JSS-19 | 12.90 ± 1.82 | S | – |
| JYX-8 | 12.87 ± 1.74 | S | 1 | ||
| JTX-98 | 12.07 ± 0.77 | S | 0.79 | ||
| JTX-99 | 12.33 ± 0.87 | S | 0.85 | ||
| Pyraclonil | 210 | JSS-19 | 69.90 ± 7.22 | S | – |
| JYX-8 | 112.10 ± 18.37 | S | 1.6 | ||
| JTX-98 | 89.22 ± 4.89 | S | 1.28 | ||
| JTX-99 | 80.61 ± 7.39 | S | 1.15 | ||
| Quinclorac | 375 | JSS-19 | 93.67 ± 0.44 | S | – |
| JYX-8 | 86.83 ± 0.65 | S | 0.93 | ||
| JTX-98 | 93.70 ± 0.31 | S | 1 | ||
| JTX-99 | 96.65 ± 0.11 | S | 1.03 |
GR50, herbicide dose causing 50% growth reduction; SE, standard error; RI, GR50 value of resistant population divided by that of susceptible population; S, sensitive population; R, resistant population.