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https://hdl.handle.net/2440/51309
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dc.contributor.author | Naseri, B. | - |
dc.contributor.author | Davidson, J. | - |
dc.contributor.author | Scott, E. | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | European Journal of Plant Pathology, 2009; 125(4):523-531 | - |
dc.identifier.issn | 0929-1873 | - |
dc.identifier.issn | 1573-8469 | - |
dc.identifier.uri | http://hdl.handle.net/2440/51309 | - |
dc.description.abstract | The effects of temperature, wetness and darkness on formation of pseudothecia and the effect of temperature on the release of ascospores of L. maculans on oilseed rape stubble were studied in a controlled environment in South Australia. Pseudothecia of L. maculans developed at 5-20°C and the time taken to reach maturity and discharge ascospores decreased from 58 days at 5°C to 22.2 days at 15°C. The optimum temperature of those tested for pseudothecium maturation was between 15°C and 20°C but fewer pseudothecia were observed at 20°C than at 15°C. Exposure to a 12 h photoperiod enhanced pseudothecium formation on the stubble compared with continuous darkness. No pseudothecia formed on stubble moistened once a day at 15°C, whereas three sprays of water per day decreased maturation time in comparison with two sprays per day. More ascospores were released for a longer duration at 20°C than at 5-15°C, although peak sporulation occurred earlier at 5-10°C than at 20°C. These findings highlight the importance of moisture, temperature and light for production and release of inoculum from stubble. This information, combined with field data, may help to predict the onset of inoculum release. © KNPV 2009. | - |
dc.description.statementofresponsibility | B. Naseri, J. A. Davidson & E. S. Scott | - |
dc.language.iso | en | - |
dc.publisher | Kluwer Academic Publ | - |
dc.rights | © 2009 Springer. Part of Springer Science+Business Media | - |
dc.source.uri | http://dx.doi.org/10.1007/s10658-009-9500-9 | - |
dc.subject | Blackleg | - |
dc.subject | Canola | - |
dc.subject | Darkness | - |
dc.subject | Phoma stem canker | - |
dc.subject | Temperature | - |
dc.subject | Wetness | - |
dc.title | Maturation of pseudothecia and discharge of ascospores of Leptosphaeria maculans on oilseed rape stubble | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1007/s10658-009-9500-9 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Scott, E. [0000-0001-6829-519X] | - |
Appears in Collections: | Agriculture, Food and Wine publications Aurora harvest |
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