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To germinate or not to germinate? Towards understanding the role dormancy plays in canola seed and seedling vigour and stand establishment
Project Details
Lead Researcher(s)
Dr. Sally Vail
Co-Researcher(s)
Isobel Parkin, Robert Gulden, Steve Robinson, Steve Shirtliffe
Funding Partners
SaskCanola
April 2015 - March 2018
Complete
The Challenge
Regardless of cultivar, canola emergence is less than 50% of the seeding rate.
The Project
Analyze the germination, seed and seedling vigour potential, as well as dormancy potential of mature seed of different Brassica napus and hybrid lines.
The Results
In some commercial seedlots there is a high potential for secondary dormancy. Secondary Dormancy Potential (SDP) is not currently included under standard protocol lab testing. 6 lines in total were grouped by consistently high or low SDP regardless of their environment that will be provided to seed companies as checks.
Grower Benefits
Using SDP checks, seed companies can increase canola emergence percentage, therefore decreasing seeding rate.
Keywords:
Germination, Dormancy, Seedling vigour