Genetic variation in Pinus taeda wood properties predicted using non-destructive techniques

Table 4 Variance components and their standard errors (SE) for the wood traits measured by the acoustic and NIR methods in the three diallel tests. Ratios of general combining ability (GCA) variance estimate to its standard error (GCA/SE) ≥ 1.8 are significantly different from zero (bold

	GCA	SE	t	SCA	SE	GE	SE	Error	SE
Trait	GA diallel
Acoustic velocity	288	144	2.0	0	–	64	40	816	57
D. stiffness	0.29	0.13	2.2	0	–	0.02	0.02	0.73	0.05
NIR density	201	102	2.0	0	–	0	–	810	100
NIR coarseness	90	48	1.9	0	–	0	–	465	57
NIR MFA	0.51	0.45	1.1	0.83	0.68	0.08	0.23	4.9	0.68
NIR MOE	0.09	0.10	0.9	0.20	0.15	0.02	0.05	0.97	0.14
NIR cell wall	0.004	0.002	2.0	0.0003	0.002	0.001	0.001	0.03	0.01
	NC diallel
Acoustic velocity	73	36	2.0	2.6	21	0	–	579	39
D. stiffness	0.17	0.08	2.1	0	–	0	–	1.3	0.1
NIR density	593	278	2.1	0	–	0	–	1407	156
NIR coarseness	136	72	1.9	0	–	0	–	825	92
NIR MFA	0.34	0.25	1.4	0	–	0	–	6.6	0.7
NIR MOE	0.30	0.17	1.8	0	–	0	–	2.3	0.3
NIR cell wall	0.016	0.008	2.0	0	–	0	–	0.05	0.01
	SC diallel
Acoustic velocity	53	28	1.9	5.2	19	0	–	598	40
D. stiffness	0.1	0.05	2.0	0	–	0	–	1.2	0.07
NIR density	167	91	1.8	0	–	5	36	982	112
NIR coarseness	17	23	0.7	0	–	31	26	377	43
NIR MFA	0.45	0.31	1.5	0	–	0.05	0.19	5.4	0.62
NIR MOE	0.10	0.08	1.3	0	–	0.05	0.06	1.3	0.1
NIR cell wall	0.002	0.002	1.0	0	–	0.002	0.002	0.03	0.003

GCA, general combining ability; SCA, specific combining ability; GE, GCA by environment interaction; t, t-value obtained as GCA/SE

faced) based on likelihood ratio tests

ISSN: 1297-966X