Quality of western Canadian canola 2012

Glucosinolate content

The 2012 total glucosinolate content averaged 10.9 mmoles/gram similar to what was observed in 2011 (10.3 mmoles/gram) but slightly higher than what was observed in 2010 (9.6 mmoles/g).  This constant low total glucosinolate content is a direct result of the constant breeding efforts from the various breeding programs and the very little proportion of Brassica rapa grown in Canada.  Since 2006, Brassica napus varieties represented more than 99% of the samples received by the Canadian Grain Commission in its harvest survey program. 

The average level of total seed glucosinolates in the November 2011 canola exports was 13.7 mmol/g of seed, similar to the average of the 2011-12 shipping season (13.1 mmol/g of seed).  Glucosinolate contents of canola exports for the 2012-2013 shipping season will remain similar to the averages observed during the 2011-2012 shipping season.

Canola quality data by grade and province – glucosinolate content of the seed
  Number of samples GlucosinolatesFootnote 1 (µmoles/g)
mean minimum maximum
Canola, No. 1 Canada
Manitoba 466 11.2 7.5 18.6
Saskatchewan 711 11.0 6.3 15.8
AlbertaFootnote 2 539 10.8 5.8 15.4
Western Canada3 1716 10.9 5.8 18.6
Canola, No. 2 Canada
Manitoba 60 12.3 6.0 17.1
Saskatchewan 153 11.7 6.6 15.5
AlbertaFootnote 2 87 11.4 7.2 15.7
Western Canada3 300 11.7 6.0 17.1
Canola, No. 3 Canada
Western CanadaFootnote 2 45 11.1 7.1 14.7
Canola, Sample Canada
Western Canada3 29 13.7 8.9 21.6

Figure 9 – Canola, No. 1 Canada - Total seed glucosinolate content of harvest survey samples, 2002–2012

Total seed glucosinolate of Canola no 1, 2002-2012-Graph described above.

Footnotes

Footnote 1

8.5% moisture basis.

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Footnote 2

Includes part of the Peace River area that is in British Columbia.

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Footnote 3

Values are weighted averages based on production by province as estimated by Statistics Canada.

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