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Table 4 Three-way analysis of variance (ANOVA) for the effects of fairy ring zone substrates, fairy ring zone inoculations, and interactions on plant growth and nutrient characteristics in greenhouse experiment, using blocks as random factors

From: Assessing soil microbes that drive fairy ring patterns in temperate semiarid grasslands

 

Fairy ring zone substrates (FS)

Fairy ring zone inoculations (FI)

FS × FI

Block

 

df

F

p

df

F

p

df

F

p

df

F

p

Shoot biomass

2

10.48

< 0.001

2

14.85

< 0.001

4

2.18

0.76

2

13.21

< 0.001

Root biomass

2

4.15

0.018

2

1.48

0.232

4

3.76

0.007

2

1.15

0.320

Shoot biomass: root biomass

2

1.62

0.205

2

2.13

0.124

4

3.50

0.010

2

2.07

0.131

Total biomass

2

9.49

< 0.001

2

4.08

0.009

4

1.94

0.108

2

4.90

0.009

Shoot N concentration (mg g− 1 dry soil)

2

6.10

0.003

2

13.76

< 0.001

4

1.52

0.204

2

6.71

0.002

Shoot N uptake (mg)

2

18.47

< 0.001

2

16.57

< 0.001

4

2.19

0.077

2

20.78

< 0.001

Shoot P concentration (mg g− 1 dry soil)

2

1.39

0.253

2

5.63

0.005

4

2.05

0.094

2

28.59

< 0.001

Shoot P uptake (mg)

2

16.29

< 0.001

2

5.97

0.004

4

1.33

0.265

2

8.01

0.001

Percentage of diseased roots (%)

2

0.154

0.857

2

1.82

0.167

4

0.59

0.674

2

3.95

0.022

Mycorrhizal root colonization (%)

2

0.064

0.938

2

0.54

0.582

4

0.53

0.715

2

0.075

0.928

  1. Percentage of diseased roots was determined by number of diseased roots/number of total roots
  2. Statistically significant sources of variation are in bold (p < 0.05)