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A range-wide common garden experiment of white spruce indicates population differentiation in drought tolerance traits
DownloadFall 2019
In western regions of the Canadian boreal forest, mean annual temperature has increased by 1.5 to 2.5 °C, significantly exceeding the mean global temperature increase. Climate conditions have also become drier and together these climate trends have induced widespread growth reductions, dieback...
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Defining roles for SHORT VEGETATIVE PHASE/AGAMOUS-LIKE 24-like (SAL) genes in the activity-dormancy transitions of white spruce (Picea glauca) terminal buds
DownloadSpring 2018
An important part of the annual growth cycle of white spruce (Picea glauca [Moench.] Voss; Pg) trees is the transition from active growth to dormancy, which confers protection against the potentially destructive environmental elements of winter. Terminal bud formation and cessation of meristemic...
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Genetic variation in lodgepole pine and interior spruce: adaptation to climate and implications for seed transfer
DownloadSpring 2014
This thesis investigates genetic variation of two commercially important conifers in western Canada, interior spruce and lodgepole pine. The goals were to quantify genetic diversity and geographic structure, to describe multitrait adaptation to local climates, and to use this information for the...
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Improving forb establishment and restoring soil function in disturbed landscapes: Hitchhiking native forbs with white spruce
DownloadSpring 2018
Changing requirements for land reclamation in Alberta has led to the need for revegetation of disturbed lands with native woody and herbaceous species. Our study involves âHitchhiker Plantingâ which is similar to companion cropping in agriculture, with the goal of improving native forb...
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Understanding the Role of Secondary Metabolites and Endophytic Fungi in White Spruce Defenses Against Eastern Spruce Budworm
DownloadFall 2023
As a boreal tree species, white spruce (Picea glauca Moench Voss) is under a constant threat by outbreaks of defoliators (foliar feeders) including eastern spruce budworm (Choristoneura fumiferana). Historically, applications of biological insecticides and silvicultural treatments have been used...