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Breeding for Phosphorus Use Efficiency in Winter Wheat (Triticum aestivum L.)

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dc.contributor.advisor Rajcan, Istvan
dc.contributor.advisor Lee, Elizabeth Sjonnesen, Kaitlyn Helen 2021-09-01T19:47:59Z 2021-09-01T19:47:59Z 2021-08 2021-08-11
dc.description.abstract Crops with superior phosphorus (P) use efficiency (PUE) provide a financial advantage to growers and a reduced environmental burden. Progress is needed to breed winter wheat (Triticum aestivum L.) for PUE. The objectives of this thesis were to: 1) examine the P response of winter wheat genotypes across traits and environments; 2) improve methods for assessing PUE; 3) identify quantitative trait loci (QTL) for traits related to PUE; 4) assess winter wheat for root system architecture (RSA) traits important for PUE. Two-hundred winter wheat genotypes were assessed under differential P conditions over three environments. A subset with varied P response was phenotyped under controlled conditions for RSA traits, for which genetic variation was found. Genetic variation was found for P response, which was inconsistent across environments. Additionally, P treatment-specific QTL were found. Through this thesis, a PUE phenotyping method suitable for regions with historically high P inputs was developed. en_US
dc.description.sponsorship NSERC, OMAFRA, and the University of Guelph en_US
dc.language.iso en en_US
dc.publisher University of Guelph en_US
dc.subject Phosphorus en_US
dc.subject Winter Wheat en_US
dc.subject Phosphorus Use Efficiency en_US
dc.subject Plant Breeding en_US
dc.subject Phosphorus Response en_US
dc.subject Root System Architecture en_US
dc.title Breeding for Phosphorus Use Efficiency in Winter Wheat (Triticum aestivum L.) en_US
dc.type Thesis en_US Plant Agriculture en_US Master of Science en_US Department of Plant Agriculture en_US
dc.rights.license All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated. University of Guelph en_US

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