Genetic relationship between wood properties and growth traits in Larix kaempferi obtained from a diallel mating test

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Basic statistics, narrow sense heritability and relative genetic gain for each trait

Trait	n	n of family	Diallel set	n in plot	Average value	Heritability (standard error)	Genetic gain (%)
Height	2196	56	8 × 8	13.1	13.3 m	0.549 (0.226)	18.48
DBH	2196	56	8 × 8	13.1	14.9 cm	0.224 (0.115)	10.48
SWV	269	30	6 × 6	3.0	4.61 km/s	0.657 (0.305)	5.20
Pilodyn	2167	56	8 × 8	12.9	17.9 mm	0.500 (0.212)	7.89
RD₅	224	30	6 × 6	2.8	0.514 g/cm³	0.658 (0.313)	16.03
AWD	224	30	6 × 6	2.8	0.513 g/cm³	0.572 (0.291)	12.42

DBH diameter at breast height, Pilodyn Pilodyn penetration depth, SWV stress wave velocity at the trunk, RD ₅ The average wood density of outer most 5 rings at breast height, AWD area-weighted average wood density of the entire disk at breast height, n the number of measured individuals, n of family the number of measured families, n in plot the average number of measured individuals per plot. Heritability is the narrow sense heritability. The relative genetic gains were calculated under the assumption of selection of the top 10 % of individuals