Age trends of microfibril angle inheritance and their genetic and environmental correlations with growth, density and chemical properties in Eucalyptus urophylla S.T. Blake wood

Table 3 Additive genetic and residual variance components, genetic and residual coefficient of variance and narrow-sense heritability estimates for circumference (C), height (H), Klason lignin (KL), syringyl to guaiacyl ratio (S/G), wood density (D), and microfibril angle (MFA)

Trait	Additive genetic variance			Residual variance			Genetic control
Trait	σ ² _A	SE σ ² _A	CV_A	σ² _E	SE σ² _E	CV_E	h ²	SE h ²
C	13.70	9.95	7.0	100.10	9.12	19.0	0.14	0.087
H	3.752	1.896	9.2	11.089	1.180	15.7	0.34	0.136
KL	1.206	0.529	3.9	1.584	0.276	4.5	0.76	0.212
SG	0.067	0.030	11.3	0.095	0.016	13.4	0.71	0.208
D₁	8.796	4.525	6.7	22.226	2.685	10.6	0.40	0.167
D₂	8.330	4.153	5.5	20.055	2.454	8.6	0.42	0.168
D₃	12.384	5.948	5.7	25.657	3.379	8.2	0.48	0.180
D	9.139	3.914	5.7	14.931	2.184	7.3	0.61	0.183
MFA₁	1.082	0.478	5.8	3.188	0.299	9.9	0.33	0.105
MFA₂	1.630	0.770	8.3	3.643	0.406	12.4	0.45	0.139
MFA₃	1.557	0.625	9.4	3.539	0.387	14.1	0.41	0.155
MFA	1.105	0.544	6.8	2.643	0.311	10.4	0.43	0.153

For D and MFA, the index correspond to radial position, 1 is close the pith. The phenotypic values of wood density were divided by 10 for estimating its variance components
σ ² _A additive genetic variance component, σ² _E residual variance component, h- narrow-sense heritability estimates, SE standard errors

ISSN: 1297-966X