>But contaminated is the proper word to describe the situation.
The issue of contamination goes beyond GM crops. Seeds of certified 
cultivar should be free from seeds of off type varieties (cultivars), 
similar crop varieties and weed. Any finding of these mixed seeds in 
certified cultivar seed is considered contaminated seeds.

What about contamination from GM crops?
The widespread usage of genetically modified (GM) crops in Canada has 
caused some export markets to implement a zero tolerance policy for GM 
seed.  However, it is difficult to maintain varietal purity in open 
pollinated crops like canola. The current varietal purity standard for 
certified canola seed is 99.75 per cent  This means that in a seeding rate 
of 100 plants m-2, one GM canola plant may be found.   

For more information about certified seed and contamination, Please check:
http://www.agriculture.gov.sk.ca/Default.aspx?DN=e1011fbf-2859-4a51-96c5-e410c38bdcfc

Medhat

Medhat Nasr, Ph. D.
Provincial Apiculturist
Crop Diversification Centre North

17507 Fort Road
Edmonton, AB, Canada T5Y 6H3
Tel: (780) 415-2314    Fax: (780) 422-6096
Mailto:[log in to unmask]

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