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Table 4 Root volume, root area, root length, and root diameter of Vetiver roots using the monolith method

From: Evaluation of the root system of Vetiver grass (Chrysopogon zizanioides L. Roberty) using different sampling methods

Samples deptha (m)

Analyzed variablesb

Root volume (mm3)

Root area (mm−2)

Root length (m)

Root diameter (mm)

Mean

Log10*

Mean

Log10*

Mean

Log10*

Mean

Log10*

0.00–0.10

1.465

− 0.630e

10.806

0.529e

0.017

0.308c

0.212

− 0.604e

0.10–0.20

1.348

− 0.590e

11.336

0.575e

0.018

0.339c

0.247

− 0.610e

0.20–0.30

5.470

− 0.042c

32.247

0.979c

0.026

0.433b

0.354

− 0.482c

0.30–0.40

1.455

− 0.339d

11.544

0.746d

0.023

0.368c

0.303

− 0.530d

0.40–0.50

4.149

0.072c

25.366

1.070ab

0.035

0.505a

0.373

− 0.459c

0.50–0.60

6.127

0.249b

32.422

1.178b

0.032

0.479a

0.473

− 0.384c

0.60–0.70

9.126

0.483a

45.904

1.348a

0.039

0.500a

0.529

− 0.320a

0.70–0.80

3.051

0.264b

18.424

1.140b

0.022

0.346c

0.504

− 0.327a

f-value

12.599

436.307

19.062

310.713

38.195

60.069

18.645

753.635

Deviation error

88.39

1.00

229.26

0.80

7.70

0.44

0.10

0.20

df

781.20

1.01

5256.28

0.64

59.43

0.19

0.08

0.041

Valid samples

71,749

70,759

71,727

70,663

93,175

92,933

71,683

70,718

  1. *Means with logarithmic transformation followed by the same letter do not differ by Duncan’s test at 5% probability
  2. aNumber of observations (n) = 93.176