Genetic parameters for earlywood and latewood densities and development with increasing age in Scots pine

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Table II

Average genetic, environmental and phenotypic correlations (r_A, r_E and r_P, respectively) between earlywood and latewood densities for different years. Δring indicates the number of years between each of the density estimates. For each separate correlation including their standard errors, see Table a–e online material only1. (a) Within the same wood type, i.e. for Δring 1, the averages of the correlation coefficients for the regressions between ring 12 and 13, 13 and 14, etc., up to ring 20 to 21 (nine values) are used, for Δring 8, the average correlations between ring 12 and 20 and between ring 13 and 21 (two values) are used, and for Δring 9, only one correlation is included, between ring 12 and 21. (b) Between wood types. The corresponding average correlations with Δring estimated by ring number for ED minus LD.

(a) Between the same woodtype.
	ED-ED			LD-LD

Δring	r_A	r_P	r_E	r_A	r_P	r_E

1	0.95	0.59	0.56	0.96	0.78	0.76
2	0.91	0.61	0.58	0.94	0.75	0.75
3	0.91	0.57	0.55	0.83	0.70	0.68
4	0.86	0.44	0.41	0.88	0.71	0.69
5	0.79	0.54	0.52	0.82	0.66	0.65
6	0.71	0.47	0.45	0.79	0.67	0.66
7	0.74	0.50	0.48	0.82	0.66	0.65
8	0.57	0.40	0.51	0.83	0.64	0.63
9	0.63	0.35	0.34	0.76	0.60	0.59

(b) Between wood types.
	ED minus LD				ED minus LD

Δring	r_A	r_P	r_E	Δring	r_A	r_P	r_E

0	0.86	0.54	0.51
1	0.78	0.44	0.41	–1	0.86	0.46	0.42
2	0.71	0.44	0.42	–2	0.88	0.43	0.39
3	0.64	0.40	0.38	–3	0.88	0.39	0.36
4	0.62	0.43	0.42	–4	0.87	0.36	0.32
5	0.50	0.43	0.42	–5	0.92	0.37	0.33
6	0.48	0.45	0.45	–6	0.84	0.29	0.25
7	0.48	0.44	0.44	–7	0.90	0.38	0.35
8	0.45	0.41	0.41	–8	0.86	0.29	0.25
9	0.46	0.37	0.36	–9	1.10	0.28	0.25