Pb treatments (mg kg-1)

Inoculation treatments

Root colonization of plants

Cu01

Cu100

Cu200

0

-M2

0.0 d3

0.0 d

0.0 d

 

+M

69.0 a

54.9a

35.5a

300

-M

0.0d

0.0 d

0.0 d

 

+M

44.6 b

26.0 c

29.0 b

600

-M

0.0d

0.0d

0.0d

 

+M

24.6c

35.1b

15.9 c

Significance4 of:

 

 

 

 

Pb addition level:

 

 

***

 

Inoculation:

 

 

***

 

Cu addition level:

 

 

***

 

Pb×inoculation:

 

 

***

 

Pb×Cu:

 

 

**

 

Cu×inoculation:

 

 

***

 

Pb×Cu×inoculation:

 

 

**

 

1Cu0, Cu100, Cu200: Cu application rate of 0, 100 and 200 mg kg-1. 2–M, +M: uninoculated control, inoculation with the mycorrhizal fungus G.mosseae. 3In each column, means followed by the same letter are not significantly different by LSD at the 5% level. 4By analysis of variance; *** p<0.001; ** p<0.01
Table 1: The root colonization of plants with different combined Cu and Pb levels (%).