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Permanent link (DOI): https://doi.org/10.7939/R3H41JW0J

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Evaluating the Influence of Genotypic Mixtures on Field Pea Productivity and Competitive Ability Open Access

Descriptions

Other title
Subject/Keyword
Genetic relatedness
Field pea
Replacement series
Genotypic mixtures
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Darras, Said
Supervisor and department
Dosdall, Lloyd ( Department of Agricultural, Food, and Nutritional Science)
Willenborg, Christian ( Department of Plant Sciences - University of Saskatchewan)
Examining committee member and department
King, Jane ( Department of Agricultural, Food, and Nutritional Science)
Strelkov, Stephen ( Department of Agricultural, Food, and Nutritional Science)
Dyck, Miles (Department of Renewable Resources)
Department
Department of Agricultural, Food, and Nutritional Science
Specialization
Plant Science
Date accepted
2013-12-05T09:44:26Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
This study was conducted to determine whether two-way genotypic mixtures could improve field pea productivity and competitive ability and whether genetic relatedness affects the mixing ability of genotypes. Genotypes were chosen on the basis of pedigree: two sister lines (CDC 1987-3 and CDC 1897-14), a common parent (Eclipse), and a distantly related genotype (Midas). Although the results showed that most mixtures performed similar to their components in monocultures, CDC1897-3 x Eclipse was found to reduce pseudo-weed (barley) seed production by 47% and 61% at Lethbridge in 2010 and 2011, respectively. The same mixture also significantly reduced the pseudo-weed biomass by 61% at St. Albert in 2010 and 41% at Lethbridge in 2010 and produced more above-ground biomass than its components in the greenhouse. Therefore, mixtures have potential to improve field pea productivity and competitive ability when combining poorly and strongly competitive genotypes; however, mixtures potential should be evaluated on a case-by-case basis.
Language
English
DOI
doi:10.7939/R3H41JW0J
Rights
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.
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