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differential set

Catalogue: Ground Cover
Dr Marcroft says the spores that attack crops each year are produced on canola stubble in the previous summer and autumn... "When you sow a canola variety, you will inevitably be selecting for blackleg spores that are able to attack the resistance genes in that variety," Dr Marcroft says... "The project has just started but we have tested the screening method in a shade house in Horsham and it works," Dr Marcroft says...
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