Populations

Mean (mg∙l−1) ± SEMa

Slope ± SE

LC50 (95% FL)b

Chi sq

df

LCRc (95% CI)d

Negative cross

resistance ratioe

LKS-1

1.11 ± 0.11

3.78 ± 0.10 (2.68 - 5.45)

3.15

8

-

-

LKS-2

1.13 ± 0.12

4.49 ± 0.08 (3.19 - 6.46)

2.61

8

-

-

LKR-1

1.38 ± 0.13

1.39 ± 0.04 (1.02 - 1.88)

3.06

8

0.337 (0.314 - 0.359)*

2.97

LKR-2

1.44 ± 0.14

1.62 ± 0.02 (1.21 - 2.17)

3.71

8

0.391 (0.370 - 0.412)*

2.56

LKR-3

1.37 ± 0.14

1.10 ± 0.05 (0.80 - 1.48)

2.92

8

0.265 (0.256 - 0.274)*

3.77