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Beni-Suef University Journal of Basic and Applied Sciences

Table 3 Impact of lead concentrations on total chlorophyll (mg/g) of the test plants

From: Response of Bambara groundnut (Vigna subterranean L.) and Maize (Zea mays L.) to heavy metal stress

Plants/concentration

Bambara groundnut

Maize

Bambara groundnut

Maize

(Pb treatment)

Mean value ± SEM

(Pb treatment)

Mean value ± SEM

(Zn treatment)

Mean value ± SEM

(Zn treatment)

Mean value ± SEM

Control

1.598 ± 0.001

2.350 ± 0.03

1.598 ± 0.001

2.350 ± 0.03

100 mg/kg

2.944 ± 0.952*

1.242 ± 0.02*

3.649 ± 0.13*

1.565 ± 0.04*

150 mg/kg

2.418 ± 0.202*

1.108 ± 0.02*

3.501 ± 0.1*

1.486 ± 0.05*

200 mg/kg

2.002 ± 1.616*

1.092 ± 0.01*

3.112 ± 0.06*

1.352 ± 0.03*

100 mg/kg + EDTA

2.872 ± 0.618*

2.028 ± 0.03*

3.712 ± 0.09*

4.141 ± 0.10*

150 mg/kg + EDTA

2.648 ± 0.320*

1.912 ± 0.12*

4.518 ± 0.10*

4.102 ± 0.11*

200 mg/kg + EDTA

2.193 ± 0.117*

1.876 ± 0.02*

4.918 ± 0.21*

3.989 ± 0.07*

100 mg/kg + manure

5.712 ± 0.100*

1.308 ± 0.01*

4.612 ± 0.09*

5.122 ± 0.11*

150 mg/kg + manure

5.528 ± 0.150*

1.475 ± 0.03*

5.622 ± 0.18*

5.893 ± 0.06*

200 mg/kg + manure

5.418 ± 0.145*

1.621 ± 0.04*

5.816 ± 0.16*

6.101 ± 0.15*

  1. The values are the means + SEM (range) of 3 replicates
  2. When *P < 0.05 = significantly different from control
  3. When P > 0.05 = not significantly different from control
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