Genetic parameter estimates for wood stiffness, strength, internal checking, and resin bleeding for radiata pine
- 1 December 2004
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Forest Research
- Vol. 34 (12), 2601-2610
- https://doi.org/10.1139/x04-128
Abstract
Data from two separate experiments were used to estimate genetic parameters for different wood properties of Pinus radiata D. Don in New Zealand. In experiment 1, 72 and 60 open-pollinated families were sampled at two sites, Kinleith and Paengaroa, respectively. Fifty-nine such families were common to both sites. In experiment 2, 62 and 29 pollen-parent families were sampled from a female-tester trial at two sites, Kaingaroa and Warrengong (the latter in Australia), respectively. Twenty-nine such families were common to both sites. Clearwood stiffness (MOE) and strength (MOR), wood density (DEN), acoustic stiffness on standing trees (IMLH), acoustic stiffness in 5-m logs (HITMAN), external resin bleeding (ERB), internal checking from discs taken at 1.3-m and 3.0-m height (CHEK_B and CHEK_U), and diameter at breast height (DBH) were assessed. Within-site narrow-sense heritability (h2) estimates of various wood properties were consistent, particularly within New Zealand. Across-sites estimates of h2 of HITMAN, CHEK_B, and DEN were, respectively, 0.24, 0.40, and 0.62 in experiment 1 and 0.21, 0.16, and 0.38 in experiment 2. Estimated type B genetic correlations were generally high for all traits except DBH. DEN showed strong positive genetic correlation with all direct and acoustic measures of stiffness (MOE, HITMAN, and IMLH). DEN and all measures of stiffness showed low to moderate negative genetic correlations with DBH.Keywords
This publication has 5 references indexed in Scilit:
- Cell wall structure and wood properties determined by acoustics?a selective reviewEuropean Journal of Wood and Wood Products, 2003
- Acoustic segregation of Pinus radiata logs according to stiffnessAnnals of Forest Science, 2002
- Évaluation de deux méthodes acoustiques de détermination du module d'élasticité de bois de mélèze hybride jeune (Larix × eurolepis Henry) - comparaison avec une méthode normalisée en flexion statiqueAnnals of Forest Science, 1999
- Genetic parameter estimates for volume from fuil-sib tests of slash pine (Pinus elliottii)Canadian Journal of Forest Research, 1995
- Genotype by Environment Interaction and Genetic Correlation of the same Trait under Different EnvironmentsThe Japanese Journal of Genetics, 1962