Type of population

Mean

EC₅₀ (mg/l)

RF

***

Comparison

Standard

Error

DF

T-value

P-value

Significance (P: ≤0.05)

Wild types

0.03

__

Poorly controlled

0.055

2

−3.93

0.049

**

Well controlled

0.15

5.0

Wild types-well controlled

0.057

2

−2.07

0.17

*

Poorly-controlled

0.25

8.3

Well-controlled-poorly controlled

0.039

2

−2.47

0.13

*