Table 1 Individual and combined acute toxicity assessments with contact filter paper and artificial soil tests.
Toxicity method | Time | Individual toxicity LC50(95% confidence interval) | Combined toxicity (1:1 toxicity) LC50(95% confidence interval) | Additive index | Combined action | ||
|---|---|---|---|---|---|---|---|
Tribenuron-methyl | Tebuconazole | Tribenuron-methyl | Tebuconazole | ||||
Contact filter paper test (μg cm−2) | 24 h | 377.9 (195.6–526.3) | 9.4 (8.5–10.6) | 202.8 (168.7–251.0) | 8.5 (7.1–10. 5) | −0.44 | antagonism |
48 h | 135.6 (103.4–150.6) | 5.7 (3.7–7.6) | 114.2 (94.8–141.6) | 4.7 (3.9–5.9) | −0.67 | antagonism | |
Artificial soil test (mg kg−1) | 7 d | 1007.3 (898.7–1235.6) | 746.3 (690.3–806.5) | 926.7 (802.8–1091) | 478.7 (414.5–563.6) | −0.56 | antagonism |
14 d | 511.0 (401.5–623.3) | 287.9 (119.4–415.1) | 479.8 (242.1–560.3) | 247.9 (125.1–367.4) | −0.80 | antagonism | |
