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Assessing the Potential for Hybrid Vigour Within a Species: Disparate Population Breeding of Balsam Poplar
DownloadFall 2021
When two or more species are crossed to produce hybrid progeny, some of them can be expected to yield a growth performance far superior to that of either parent (i.e., hybrid vigour/heterosis). To date, there have been few attempts to examine whether hybrid vigour can be achieved by crossing...
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Spring 2024
Trembling aspen (Populus tremuloides Michx.) is a dioecious clonal tree species with broad distribution in North America. In dioecious species, sexes are predicted to perform differently, based on the principle of allocation and the energy costs associated with reproduction. Aspen reproduce...
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Trade-offs between wood density and radial growth in the Region H white spruce Controlled Parentage Program, Alberta, Canada
DownloadFall 2019
Trade-offs between wood density and radial growth rate in white spruce were investigated. Decreases in wood density associated with increased radial growth rate have been well documented in several tree species, including white spruce (Picea glauca (Moench) Voss)....