Quality of western Canadian canola, 2009

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Glucosinolate content

The 2009 total seed glucosinolate level of 9.6 µmoles per gram is slightly higher than the 10.6 µmoles per gram in 2008 and similar to the 10 µmoles per gram found in 2007. The absence of widespread heat stress and the large proportion of Brassica napus samples contributed to the overall low glucosinolate levels for the 2009 crop. The Grain Research Laboratory 2009 harvest survey samples were comprised of over 99% Brassica napus types, similar to the 99% in 2008 and 2007. The average level of total seed glucosinolates in the October 2009 Vancouver and Thunder Bay canola exports indicates glucosinolate levels in exports will be similar to those in the 2008–09 shipping season.

Glucosinolates content of 2009 harvest survey samples, by grade and province

	Number of samples	Glucosinolates1 (µmoles/g)
		mean	minimum	maximum
1 8.5% moisture basis
2 Includes part of the Peace River area that is in British Columbia
3 Values are weighted averages based on production by province as estimated by Statistics Canada.
Canola, No. 1 Canada
MB	378	9.21	5	13.1
SK	569	9.09	5.4	14.4
AB2	408	10.43	5.7	17.6
Western Canada3	1355	9.59	5	17.6
Canola, No. 2 Canada
MB	13	10.2	8	11.4
SK	11	10.6	7.5	12.9
AB2	69	10.48	7.5	15.4
Western Canada3	93	10.49	7.5	15.4
Canola, No. 3 Canada
Western Canada3	18	10.14	7.6	16.9
Canola, Sample Canada
Western Canada3	18	13.9	3.5	17.7

Total seed glucosinolate content of harvest survey samples, 1990–2009 - Canola, No. 1 Canada

Crop year	Glucosinolates µmoles/g
1990	20.0
1991	18.0
1992	17.0
1993	14.0
1994	19.0
1995	15.0
1996	15.0
1997	16.1
1998	15.5
1999	12.6
2000	12.8
2001	14.5
2002	17.1
2003	14.5
2004	11.8
2005	12.4
2006	13.5
2007	12.6
2008	10.6
2009	9.6

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