Table 4.
Parameter estimates of the equation used to calculate the sensitivity of EPSPS enzyme activity to glyphosate in extracts from leaf tissue of plants from L. rigidum populations and A. sterilis accessions.
| Species | c | d | b | I50(μM)(95% CI)a | RI | P | |
|---|---|---|---|---|---|---|---|
| L. rigidum | R | 1.23 | 97.17 | 1.57 | 400.02 (457.51–342.53) | 78.43 | <0.0001 |
| S | 1.54 | 98.18 | 1.99 | 5.10 (6.19–4.01) | |||
| A. sterilis | E | 0.60 | 98.37 | 1.03 | 53.51 (61.40–45.62) | 1.26 | 0.395 |
| UE* | 1.12 | 98.70 | 0.95 | 42.41 (50.82–34.00) | |||
*
Considered in this experiment as susceptible.
a
CI values are the 95% confidence intervals (n=3).
E, exposed to glyphosate applications; UE, never exposed to glyphosate applications.