The potential to improve growth rate and quality traits of stem straightness and branching habit when breeding Picea sitchensis (Bong.) Carr

Table 3 Genetic (below the diagonal) and phenotypic (above the diagonal) correlations between traits

	Height 10 (m)	Height 20 (m)	Crown depth 20 (m)	DBH 15 (cm)	Branch number	Branch angle (deg)	Branch diam. (mm)	Branch score^a	Stem score^a
Height₁₀ (m)		0.64	0.48	0.71	−0.01	0.14	0.45	−0.07	−0.33
Height₂₀ (m)	0.79		0.74	0.55	−0.06	0.04	0.38	−0.08	−0.19
Crown depth₂₀ (m)	0.59	0.93		0.43	−0.01	0.14	0.36	−0.09	−0.22
DBH₁₅ (cm)	0.69	0.54	0.28		0.07	0.14	0.53	0.21	−0.21
Branch number₂₀	−0.47	−0.76	−0.60	−0.11		0.10	−0.23	0.11	0.01
Branch angle₂₀ (deg)	0.19	0.02	0.16	0.20	0.83		−0.11	−0.10	0.02
Branch diam.₂₀ (mm)	0.79	0.74	0.70	0.49	−1.04	0.07		0.00	−0.20
Branch score ^a₁₅	−0.17	−0.62	−0.41	0.05	0.42	−0.32	−0.32		0.27
Stem score ^a₁₅	−0.41	−0.42	−0.35	0.11	0.54	0.19	0.01	0.28

Subscript on the trait description is the tree age when the measurements were made
^aBranch and stem scores range from 1 = the best to 6 = worst

ISSN: 1297-966X