Table 3 Summary of one-way analysis of variance (ANOVA) test results.

From: Nanoscale measurement of trace element distributions in Spartina alterniflora root tissue during dormancy

Univariate F Tests

Source

Type III SS

Degree of freedom

Mean squares

F-ratio

p-value

As

99890

2

49945

7191

0.000

Error

510072

73436

6.95

  

Ca

3214924

2

1607462

11387

0.000

Error

10366966

73436

141

  

Cr

280137

2

140068

11064

0.000

Error

929670

73436

12.7

  

Cu

5914697

2

2957349

4329

0.000

Error

50166621

73436

683

  

Fe

1263000000

2

631700000

18599

0.000

Error

2494000000

73436

33965

  

Mn

594723

2

297362

16878

0.000

Error

1293809

73436

17.6

  

Ni

115348

2

57674

3909

0.000

Error

1083412

73436

14.8

  

S

516332

2

258166

12720

0.000

Error

1490425

73436

20.3

  

Zn

3009492

2

1504746

43488

0.000

Error

2540970

73436

34.6

  
  1. According to the root areas analyzed, data are grouped into the root epidermis, inner endodermis and outer endodermis. There are significant differences in metal concentrations among these different root tissue layers.
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