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Weeds and diseases are major constraints to organic wheat and oat
production, so varieties with greater weed competitiveness and superior
disease resistance are very important. Organic wheat breeding programs
in Saskatchewan and Alberta are less likely to produce durable disease
resistance in cereals than if the selection were conducted in Manitoba.
There is no other organic oat breeding program in Canada. In Europe,
wheat varieties have been specifically bred for organic production.
These varieties were selected for and tested exclusively under organic
management. Among nutrients, nitrogen is not typically limiting on
organic farms but phosphorus can be. While long-term organic fields
still have high levels of total P; available P is lower in organic
production. Mycorrhizal soil fungi, which are more abundant in organic
vs. conventional soils in Manitoba, help wheat and other organic crops
access this less available P.
This research project
involves 4 components; all aimed at developing wheat and oat varieties
adapted to low-input and organic management systems:
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Early generation
screening of wheat and oat germplasm.
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Screening parental
lines and F6-F7 wheat lines for mycorrhizal colonization and P uptake.
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Yield testing of
wheat and oats developed for low-input and organic management.
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Does selecting wheat
in an organic environment actually make plants more adapted to organic
soil growing conditions?
Co-Applicants of this
project are Drs. Stephen Fox and Jennifer Mitchell-Fetch, Cereal
Research Centre, Agriculture and Agri-Food Canada.
The Donner Canadian
Foundation is a funding partner.
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