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internal infection

Catalogue: NVT Online Papers
The Lower Eyre Peninsula survey showed most paddocks had internal blackleg infection levels below 10% unlikely to suffer a yield or oil content penalty... Current varieties have a number of resistance genes if blackleg overcomes one resistance gene, other resistance genes remain effective and so the crops should not become completely susceptible... Final grain yield after slashing was similar in all varieties (about 0.8 t/ha average), except CB1206 (0.2 t/ha)...
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Catalogue: GRDC Publications
At one or more sites this variety had lower resistance than previously reported... Do not sow into canola stubble from the previous year... Growers may sometimes experience signi cant variability from the averages shown by these ratings...
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Catalogue: GRDC Media
Blackleg disease warning for lower EP canola growers Growers of canola on South Australia's lower Eyre Peninsula are being urged to take measures to prevent severe blackleg fungal disease in their crops this season... Blackleg 1.01: Plant pathologist Steve Marcroft explains how to check your crop for blackleg, how blackleg overcomes the genetic resistance of canola, and explains how to use the Blackleg Management Guide and disease ratings to choose a new canola cultivar to reduce exposure to the worst disease of canola... In summary, the measures that should be taken include: 1/ Choose a canola cultivar with high levels of blackleg resistance for the Eyre Peninsula noting varieties with recent resistance changes (use only the current year's ratings)...
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Catalogue: GRDC Publications
" CAAblacklegresistanceratings2012 CAA Canola Association Supported by CAA Of Australia 2012 Blackleg RESISTANCE Ratings GENOTYPE.. Do not sow into canola stubble from the previous year... Growers may sometimes experience signi cant variability from the averages shown by these ratings...
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