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GR50 and RI values for four populations of D. ciliaris var. chrysoblephara exposed to metamifop in this study.
| Population | GR50+SE (g a.i ha−1) | Susceptibility | RI |
|---|---|---|---|
| JSS-19 | 21.45 ± 0.79 | S | – |
| JYX-8 | 657.22 ± 43.86 | R | 30.64 |
| JTX-98 | 308.36 ± 14.14 | R | 14.38 |
| JTX-99 | 497.38 ± 43.54 | R | 23.19 |
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.
