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Type: Journal article
Title: Brassica napus plants infected by Leptosphaeria maculans after the third to fifth leaf growth stage in south-eastern Australia do not develop blackleg stem canker
Author: Marcroft, S.
Sosnowski, M.
Scott, E.
Ramsey, M.
Salisbury, P.
Howlett, B.
Citation: European Journal of Plant Pathology, 2005; 112(3):289-292
Publisher: Kluwer Academic Publ
Issue Date: 2005
ISSN: 0929-1873
Statement of
S.J. Marcroft, M.R. Sosnowski, E.S. Scott, M.D. Ramsey, P.A. Salisbury, B.J. Howlett
Abstract: Blackleg (Phoma stem canker) caused by Leptosphaeria maculans is the most damaging disease of Brassica napus (canola, rapeseed, colza) worldwide and is controlled by sowing blackleg resistant cultivars and crop management strategies that reduce exposure to inoculum and fungicide application. In experiments in south-eastern Australia, canola cultivars inoculated after the three to five leaf growth stage did not develop stem canker. Although mature canola plants are known to be less susceptible to blackleg than seedlings, this highlights for the first time the specific importance of protecting seedlings up to the three to five leaf growth stage in Australia. This would typically correspond to a period of four to six weeks after emergence. Canola plants are likely to be significantly less vulnerable to infection after this growth stage. However, this timing may vary due to the influence of environmental conditions.
Keywords: Canola
oilseed rape
Phoma lingam
Phoma stem canker
Description: The original publication can be found at
DOI: 10.1007/s10658-005-1050-1
Appears in Collections:Agriculture, Food and Wine publications
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