Na

K

Mg

Ca

Intercept

Regression

Coefficients (C’)

P-value

Coefficients (C’’)

P-value

Coefficients (C’’’)

P-value

Intercept

P-value

R²

P-value

Root

0.507

<0.05

0.866

ns

3.436

ns

9.812

ns

0.266

<0.05

Sheath

−0.051

ns

4.071

<0.001

3.921

ns

7.957

ns

0.903

<0.001

Leaf

−0.954

<0.01

7.847

<0.001

−1.762

ns

5.440

ns

0.641

<0.001