Table 1 Overall mean values (±S.E.) for various traits of S. halepense seedlings grown under different concentrations

Germination (%)

99.1 ± 0.01

97.3 ± 0.06

98.1 ± 0.02

97.6 ± 0.07

97.4 ± 0.03

Root length (cm)

3.47 ± 0.12

3.38 ± 0.16

3.21 ± 0.18

2.27 ± 0.12

1.96 ± 0.15

Seedling length (cm)

6.29 ± 0.01

6.05 ± 0.01

5.41 ± 0.03

5.26 ± 0.04

4.71 ± 0.02

Seedling/root ratio

1.81 ± 0.08

1.79 ± 0.06

1.68 ± 0.16

2.31 ± 0.33

2.4 ± 0.13

Necrotic area (mm)

0.1 ± 0.001

1.4 ± 0.005

2.3 ± 0.004

6.5 ± 0.02

8.1 ± 0.04

Chlorotic area (mm)

0.1 ± 0.001

1.0 ± 0.017

2.1 ± 0.012

2.3 ±0.015

2.6 ± 0.013

Characters

Control

Concentration of D. stramonium leaf extract (μg/g)

(IV)

(III)

(II)

(I)

Germination (%)

99.3 ± 0.01

98.2 ± 0.04

98.5 ± 0.08

98.2 ± 0.07

97.8 ± 0.06

Root length (cm)

3.51 ± 0.15

3.49 ± 0.13

3.37 ± 0.12

3.11 ± 0.15

2.71 ± 0.11

Seedling length (cm)

6.24 ± 0.03

4.52 ± 0.02

3.53 ± 0.03

3.12 ± 0.01

2.51 ± 0.05

Seedling/root ratio

1.77 ± 0.2

1.29 ± 0.15

1.04 ± 0.25

1.00 ± 0.06

0.92 ± 0.45

Necrotic area (mm)

0.2 ± 0.002

2.3 ± 0.001

12.5 ± 0.007

14.3 ± 0.005

15.5 ± 0.006

Chlorotic area (mm)

0.1 ± 0.001

6.5 ± 0.02

8.3 ± 0.017

11.7 ± 0.015

12.5 ± 0.013