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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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Effects of Enhanced Non-segregated Tailings, Root Hypoxia, and Salinity on the Growth of Commonly Used Oil Sands Reclamation Plant Species and Halophytes
DownloadFall 2023
In Alberta, Canada, oil sands mining activities have disturbed many boreal forest habitats and produced large amounts of tailings. Recently, a novel oil sands tailings management technology of the enhanced non-segregated tailings (eNST) has been developed, which uses polymers to accelerate...
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Effects of Mineral Nutrition and Iron Supply on Growth and Physiological Responses of Selected Boreal Plant Species to Root Zone pH
DownloadSpring 2018
High soil pH can aggravate the effects of water deficit stress, inhibit root growth, and reduce the availability of essential elements to plants, especially iron. Iron deficiency can severely decrease plant growth and yield and result in plant mortality. In my study, I examined the effects of...
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Effects of Root Zone pH, Calcium and Phosphorus Supply on Selected Boreal Forest Plant Species
DownloadSpring 2015
Soil pH is among the major environmental factors affecting plant growth. In the reclaimed areas following open-pit oil sands mining in northeastern Alberta, Canada, the pH of reclaimed soil is commonly higher than 8.0. The optimum range of soil pH for growth and the tolerance of pH extremes...
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Fall 2012
In this study, growth of seven hybrid poplar clones and one pure poplar clone was investigated in relation to leaf, shoot, and root physiology under field conditions. Clones included: Walker (24 - P. deltoides x P. xpetrowskyana), Assiniboine (25 - open pollinated Walker cv. Assiniboine),...
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Growth and Physiological Responses of Conifer Seedlings to Salt Stress and Nutrient Deficiency
DownloadSpring 2018
Oil sands extraction and refining can cause many negative environmental impacts and because these activities usually take place in the forest region, the Government of Alberta requires that, after mine sites are closed, the companies perform reclamation. The properties of reclaimed oil sands...
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Major intrinsic proteins of Laccaria bicolor: characterization, transcript profiling and functions in ectomycorrhizal associations with Picea glauca
DownloadSpring 2015
In mycorrhizal associations, water transport properties of the fungal hyphae may affect water transport of the host plants. The importance of aquaporins, water-transporting members of the Major Intrinsic Protein (MIP) family, in facilitating water transport has been widely acknowledged and...