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Permanent link (DOI): https://doi.org/10.7939/R3FT05

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The potential of aspen clones and hybrids for enhanced forest management in Alberta Open Access

Descriptions

Other title
Subject/Keyword
gain
hybrids
heterosis
forest management
aspen
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Gylander, Timothy
Supervisor and department
Hamann, Andreas (Renewable Resources)
Examining committee member and department
Brouard, Jean (Isabella Point Forestry)
Yang, Rong-Cai (Agricultural, Food and Nutritional Sciences)
Blenis, Peter (Renewable Resources)
Thomas, Barbara (Renewable Resources)
Department
Department of Renewable Resources
Specialization

Date accepted
2011-09-26T23:47:19Z
Graduation date
2011-11
Degree
Master of Science
Degree level
Master's
Abstract
This thesis presents results from an industrial aspen tree improvement program for Alberta, evaluating a series of provenance, clonal and hybrid field trials. The goals were to (1) investigate geographic patterns of genetic variation in order to delineate breeding regions, (2) to assess the potential of clonal forestry systems to enhance forest productivity, and (3) to evaluate the potential of hybridization to enhance growth through hybrid vigor. Partitioning of genetic variance with geographic predictor variables suggests two breeding regions for Alberta should be appropriate: a Sub-Boreal Rocky Mountain Foothill region between 52°30'N and 56°N latitude, and a Boreal Mixedwood region between 56°N and 59°N latitude. Broad-sense heritabilities for height and diameter ranged from 0.36 to 0.64 on selected sites, allowing 5-15% genetic gains in height and 9-34% in diameter based on selections from current trials. The best genotypes within hybrid families could have some additional potential in improving yields.
Language
English
DOI
doi:10.7939/R3FT05
Rights
License granted by Timothy Gylander (tim.gylander@weyerhaeuser.com) on 2011-09-23T15:55:06Z (GMT): 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 the above terms. The author reserves all other publication and other rights in association with the copyright in the thesis, and except as herein 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.
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