Pub Date : 1998-03-01DOI: 10.1080/07060669809500434
M. Fernandez, J. Clarke, R. DePauw
{"title":"Effect of environmental variables on the development of kernel discoloration by Pyrenophora tritici-repentis in durum wheat","authors":"M. Fernandez, J. Clarke, R. DePauw","doi":"10.1080/07060669809500434","DOIUrl":"https://doi.org/10.1080/07060669809500434","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80568933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500448
R. Utkhede, E. Hogue
{"title":"Effect of herbicides, plastic mulch, and hand-weeding on development of phytophthora crown and root rot of apple trees","authors":"R. Utkhede, E. Hogue","doi":"10.1080/07060669809500448","DOIUrl":"https://doi.org/10.1080/07060669809500448","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86502152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500438
Leonard J. Hutchison, Lawrence M. Kawchuk
{"title":"Spongospora subterranea f. sp. subterranea","authors":"Leonard J. Hutchison, Lawrence M. Kawchuk","doi":"10.1080/07060669809500438","DOIUrl":"https://doi.org/10.1080/07060669809500438","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86987011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500440
C. Oleskevich, S. Shamoun, R. Vesonder, Z. Punja
Fungi were Isolated from naturally Infected Rubus srrigosus. R. parviflorus. and R. specrabi/is plants in an attempt to identify biological control agents for these invaSIve species in reforestation sites. Three endemic fungi. Fusarium avenaceum, ColIelOlrlchum demarium. and a Phomopsis sp.. were selected for further study after they were found to induce >50% leaf area necrosis when inoculated onto detached Rubus leaves using in vitro pathogenicity tests. However. when inoculum was applied to intact Rubus plants under shadehouse conditions. significant foliar necrosis was not observed. Inoculum production methods. amendment of inocula with adjuvants. and application of low doses of glyphosate were investigated for their effects on patho genicity. Foliar infection was increased significantly when inoculum of F. avenaceum was grown on a rice-grain substrate an~ applied in combination with an organosilicone surfactant (0.4% Silwet L-77®) to R. strigosus and R. parviflorus plants. Extracuon and analysis of infested nce filtrates for metabolite production showed that a single toxin, moniliformin, was present at levels of 3300 ppm. Pathogenicity of the other two fungi was not enhanced under any conditions assayed. The potential for further development of F. avenaceum as a biological control agent of weedy Rubus species is discussed.
{"title":"Evaluation of Fusarium avenaceum and other fungi for potential as biological control agents of invasive Rubus species in British Columbia","authors":"C. Oleskevich, S. Shamoun, R. Vesonder, Z. Punja","doi":"10.1080/07060669809500440","DOIUrl":"https://doi.org/10.1080/07060669809500440","url":null,"abstract":"Fungi were Isolated from naturally Infected Rubus srrigosus. R. parviflorus. and R. specrabi/is plants in an attempt to identify biological control agents for these invaSIve species in reforestation sites. Three endemic fungi. Fusarium avenaceum, ColIelOlrlchum demarium. and a Phomopsis sp.. were selected for further study after they were found to induce >50% leaf area necrosis when inoculated onto detached Rubus leaves using in vitro pathogenicity tests. However. when inoculum was applied to intact Rubus plants under shadehouse conditions. significant foliar necrosis was not observed. Inoculum production methods. amendment of inocula with adjuvants. and application of low doses of glyphosate were investigated for their effects on patho genicity. Foliar infection was increased significantly when inoculum of F. avenaceum was grown on a rice-grain substrate an~ applied in combination with an organosilicone surfactant (0.4% Silwet L-77®) to R. strigosus and R. parviflorus plants. Extracuon and analysis of infested nce filtrates for metabolite production showed that a single toxin, moniliformin, was present at levels of 3300 ppm. Pathogenicity of the other two fungi was not enhanced under any conditions assayed. The potential for further development of F. avenaceum as a biological control agent of weedy Rubus species is discussed.","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75921528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500436
P. Thomas, L. A. Cooke, R. Clear
{"title":"Quality loss in wheat caused by smut spores from yellow foxtail","authors":"P. Thomas, L. A. Cooke, R. Clear","doi":"10.1080/07060669809500436","DOIUrl":"https://doi.org/10.1080/07060669809500436","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84137529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500443
L. Dushnicky, G. M. Ballance, M. Sumner, A. Macgregor
{"title":"THE ROLE OF LIGNIFICATION AS A RESISTANCE MECHANISM IN WHEAT TO A TOXIN-PRODUCING ISOLATE OF PYRENOPHORA TRITICI-REPENTIS","authors":"L. Dushnicky, G. M. Ballance, M. Sumner, A. Macgregor","doi":"10.1080/07060669809500443","DOIUrl":"https://doi.org/10.1080/07060669809500443","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89112884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500446
V. Govindsamy, K. R. Gunaratna, R. Balasubramanian
{"title":"Properties of extracellular chitinase from Myrothecium verrucaria, an antagonist to the groundnut rust Puccinia arachidis","authors":"V. Govindsamy, K. R. Gunaratna, R. Balasubramanian","doi":"10.1080/07060669809500446","DOIUrl":"https://doi.org/10.1080/07060669809500446","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84087887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500450
J. David Miller, John Culley, Karen Fraser, Sheryl Hubbard, Francis Meloche, Thérèse Ouellet, W. Lloyd Seaman, Keith A. Seifert, Kelly Turkington, Harvey Voldeng
{"title":"Effect of tillage practice on Fusarium head blight of wheat.","authors":"J. David Miller, John Culley, Karen Fraser, Sheryl Hubbard, Francis Meloche, Thérèse Ouellet, W. Lloyd Seaman, Keith A. Seifert, Kelly Turkington, Harvey Voldeng","doi":"10.1080/07060669809500450","DOIUrl":"https://doi.org/10.1080/07060669809500450","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73899911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500442
A. Bar-zur, Y. Tadmor, J. Juvik, M. Shimoni, R. Reuveni
{"title":"Resistance to northern leaf blight in maize (Zea mays) conditioned by the HtN gene and the association with isoperoxidases","authors":"A. Bar-zur, Y. Tadmor, J. Juvik, M. Shimoni, R. Reuveni","doi":"10.1080/07060669809500442","DOIUrl":"https://doi.org/10.1080/07060669809500442","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84089350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1998-03-01DOI: 10.1080/07060669809500447
R. Hall, J. Sutton
{"title":"Relation of weather, crop, and soil variables to the prevalence, incidence, and severity of basal infections of winter wheat in Ontario","authors":"R. Hall, J. Sutton","doi":"10.1080/07060669809500447","DOIUrl":"https://doi.org/10.1080/07060669809500447","url":null,"abstract":"","PeriodicalId":9607,"journal":{"name":"Canadian Journal of Plant Pathology-revue Canadienne De Phytopathologie","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1998-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75736902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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