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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 4 Estimated values of the fixed and random effects of the selected models for stem diameter in relation to cambial age

From: Relationship between the xylem maturation process based on radial variations in wood properties and radial growth increments of stems in a fast-growing tree species, Liriodendron tulipifera

Fixed-effect parameters

Random-effect parameters

Parameter

Estimates

SE

t-value

p-value

Parameter

SD

Variance component

Variance component ratio (%)

a0

19.186

2.166

8.86

 < 0.001

Tree0j

6.219

38.673

99.1

a1

1.242

0.031

40.15

 < 0.001

eij

0.588

0.346

0.9

a2

0.252

0.012

21.04

 < 0.001

    
  1. Fixed- and random-effects parameters were estimated by the selected model (Model a-1 in Table 2). SE, standard error; SD, standard deviation
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