Table 2 Parameters of the log–logistic model [Y=c+(d−c)/(1+(x/G)b)] used to calculate the LD50 values of selected and unselected progeny and their R/S ratios from dose–response studies (CER)

From: Evolution of glyphosate resistance in a Lolium rigidum population by glyphosate selection at sublethal doses

Progeny

Experiments

d

c

G

b

RMS a

LD50 (g Ha−1)

R/S

VLR1

1–2

100

0

126

4

25

126

—

3a

1–2

100

14

194

4

41

210

1.67

VLR1

3

100

0

77

3

2

76.6

—

3a

3

100

0

158

3

24

158

2.08

VLR1

1–2

100

1

165

5

62

165

—

4a

1–2

100

0

288

3

166

288

1.73

VLR1

3

100

2

121

3

188

123

—

4a

3

100

0

291

2

148

291

2.37

  1. ANOVA analysis conducted for each non-linear regression is highly significant (P<0.001) and adjusted-R2>0.84.
  2. aResidual mean square.
Back to article page