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Agronomic Practices to Reduce the Effects of Environmental Stresses on Spring Canola (Brassica napus L.) Establishment and Yield in Ontario

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dc.contributor.advisor Earl, Hugh J.
dc.contributor.author Griffiths, Kathleen Meagan
dc.date.accessioned 2014-09-02T13:04:50Z
dc.date.available 2014-09-02T13:04:50Z
dc.date.copyright 2014-08
dc.date.created 2014-08-25
dc.date.issued 2014-09-02
dc.identifier.uri http://hdl.handle.net/10214/8362
dc.description.abstract Establishing an adequate plant stand is one of the primary challenges in the production of canola (Brassica napus L.), and plant population strongly affects crop morphology. We tested the hypotheses that i) pre-plant application of liquid dairy manure (LDM) improves crop establishment more than a fertilizer with similar nutrients, and ii) plant morphological changes correlated with low-density plant stands enhance crop tolerance of mid-season water stress. In greenhouse studies both LDM and fertilizer treatments enhanced seedling vigour over the untreated control, but in some cases percent seedling emergence was higher with LDM than the fertilizer treatments. Enhanced seedling emergence with LDM was not found in field trials, even at sub-optimal seeding rates. In a high-yielding greenhouse trial, low plant density shifted much of the pod load from main racemes to branch racemes, but this morphological change did not significantly reduce yield loss under water stress. en_US
dc.description.sponsorship Ontario Canola Growers Association; Ontario Ministry of Agriculture, Food and Rural Affairs; Agriculture Adaptation Council en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivs 2.5 Canada *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/2.5/ca/ *
dc.subject Canola en_US
dc.subject manure en_US
dc.subject density en_US
dc.subject population en_US
dc.subject water stress en_US
dc.subject agronomy en_US
dc.subject Brassica napus L. en_US
dc.subject physiology en_US
dc.subject yield components en_US
dc.title Agronomic Practices to Reduce the Effects of Environmental Stresses on Spring Canola (Brassica napus L.) Establishment and Yield in Ontario en_US
dc.type Thesis en_US
dc.degree.programme Plant Agriculture en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Plant Agriculture en_US
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Attribution-NonCommercial-NoDerivs 2.5 Canada Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 2.5 Canada