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Production and outplanting success of nutrient-loaded aspen seedlings Open Access


Other title
Nursery seedling quality
Seedling outplanting performance
Populus tremuloides
Nutrient and carbon reserves
nutrient loading
Type of item
Degree grantor
University of Alberta
Author or creator
Schott, Kaitlin M.
Supervisor and department
Pinno, Brad (CFS)
Landhäusser, Simon (Renewable Resources)
Examining committee member and department
Zwaizek, Janusz (Renewable Resources)
Erbilgin, Nadir (Renewable Resources)
Department of Renewable Resources
Forest Biology and Management
Date accepted
Graduation date
Master of Science
Degree level
Quality aspen (Populus tremuloides Michx.) nursery seedlings are difficult to produce. In this thesis I explored methods to improve the nutrient status (loading) of aspen seedlings. Tissue nutrient concentrations doubled in seedlings treated with a shoot growth inhibitor (SGI) compared to exponential fertilization which resulted in poor quality (small) seedlings with lower nutrients. Nutrient loaded and standard feed SGI seedlings were outplanted on a reclamation site in two capping materials (peat-mineral-mix (PMM) and salvaged forest floor). Superimposed were also four different fertilizer regimes. Loaded aspen seedlings always outperformed standard seedlings, grew better on PMM capping material, and a controlled release fertilizer had a longer lasting effect on seedling growth than the immediate release fertilizer. These differences continued in the second growing season. SGI treatment allows for the production of nutrient loaded aspen seedlings, produces uniform and quality seedling stock, and can reduce broadcast fertilization needs on reclamation sites.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Schott, Kaitlin M., Bradley D. Pinno, and Simon M. Landhäusser. "Premature shoot growth termination allows nutrient loading of seedlings with an indeterminate growth strategy." New Forests (2013): 1-13. DOI 10.1007/s11056-013-9373-9

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