Following the appointment of the new Cabinet, the Forest Sector now reports to the ministère des Ressources naturelles et des Forêts, while the Wildlife and Parks Sectors report to the ministère de l'Environnement, de la Lutte aux changements climatiques, de la Faune et des Parcs. Adjustments will be made to the website over time.

Back to publications

Variation in mechanical properties of selected young poplar hybrid crosses

Summary

Published in Forest Science 54(3): 255-259

To better understand  the variability in mechanical properties caused by genetic differences in hybrid poplars, modulus of elasticity and modulus of rupture in static bending were examined at two 10-year-old clonal trials located at Windsor and St-Ours, southern Québec, Canada. The materials consisted of three hybrids, Populus deltoides X Populus nigra, Populus trichocarpa X P. deltoides, Populus maximowiczii X Populus balsamifera, and native P. deltoides. Significant differences were observed in mechanical properties among hybrids and P. deltoides. The effects of growth on the mechanical properties were inconsistent and varied considerably by site and by hybrid. Results indicated no uniform trends relating growth rate to either higher or lower modulus of elasticity/modulus of rupture. It appears that selection for strength properties may not uniformly lead to decreased growth production, especially for P. trichocarpa X P. deltoides and P. maximowiczii X P. balsamifera.

Sector(s): 

Forests

Categorie(s): 

Scientific Article

Theme(s): 

Forest Genetics, Forestry Research, Forests, Genetic improvement of trees

Departmental author(s): 

Périnet, Pierre

Author(s)

QIBIN, Yu, S.Y. ZHANG, Alfas PLIURA, John MACKAY, Jean BOUSQUET and Pierre PÉRINET

Year of publication :

2008

Keywords :

Populus, forest tree breeding, poplar, modulus of elasticity, modulus of rupture, forestry research scientific article, tree improvement

Partagez