FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT
Specialization: Plant Science Degree: Master of Science Abstract: Fusarium root rot is a major disease of soybean (Glycine max) in many regions worldwide. As soybean is a relatively new crop in Alberta, Canada, studies were undertaken to determine the occurrence and severity of root rot in this prov...
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University of Alberta. Department of Agricultural, Food, and Nutritional Science.
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fttriple:oai:gotriple.eu:10402/era.43654 2023-05-15T18:40:35+02:00 FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT FUSARIUM ROOT RED OF SOYBEAN IN SOUTHERN ALBERTA: Pathogenic AGGRESSIVENESS AND DISEASE MANAGEMENT Nyandoro, Ronald Kan-Fa Chang (Alberta Agriculture and Forestry) Stephen Strelkov (Agricultural, Food and Nutritional Science) Rudolph.Fredua-Agyeman (Alberta Agriculture and Forestry) Guillermo Hernandez Ramirez (Renwable Resources) 2017-01-19 http://hdl.handle.net/10402/era.43654 en eng University of Alberta. Department of Agricultural, Food, and Nutritional Science. 10402/era.43654 http://hdl.handle.net/10402/era.43654 other ERA : Education and Research Archive socio envir Thesis https://vocabularies.coar-repositories.org/resource_types/c_46ec/ 2017 fttriple 2023-01-22T17:47:09Z Specialization: Plant Science Degree: Master of Science Abstract: Fusarium root rot is a major disease of soybean (Glycine max) in many regions worldwide. As soybean is a relatively new crop in Alberta, Canada, studies were undertaken to determine the occurrence and severity of root rot in this province, identify and characterize the Fusarium species associated with disease development, and evaluate seed treatments and host resistance as disease management tools. Root rot was found in all soybean crops surveyed in 2013 and 2014. A total of seven species of Fusarium were identified from infected roots based on their morphological characteristics, with Fusarium avenaceum, F. solani, F. oxysporum, and F. acuminatum occurring most frequently. In greenhouse bioassays, isolates of F. proliferatum and F. acuminatum were the most aggressive, although some isolates of F. acuminatum caused little disease. Seed treatment with ipconazole + metalaxyl + fludioxonil, ipconazole + metalaxyl, fludioxonil + metalaxyl, or penflufen + prothioconazole + metalaxyl resulted in relatively high crop emergence rates (≥70%) under field conditions, while in greenhouse experiments, ipconazole + metalaxyl and carbathiin + thiram provided the best results. The resistance of soybean genotypes to F. avenaceum varied significantly, with genotype 90M01 having the highest emergence rate (83%) under field conditions. In greenhouse trials, the genotype Tundra was most resistant to root rot, whereas TH29002RR was the most susceptible. The results suggest that while root rot represents a significant challenge to soybean production in Alberta, fungicidal seed treatments and planting of genotypes with improved resistance may help to mitigate the impact of this disease. Thesis Tundra Unknown Canada |
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socio envir Nyandoro, Ronald FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT |
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socio envir |
description |
Specialization: Plant Science Degree: Master of Science Abstract: Fusarium root rot is a major disease of soybean (Glycine max) in many regions worldwide. As soybean is a relatively new crop in Alberta, Canada, studies were undertaken to determine the occurrence and severity of root rot in this province, identify and characterize the Fusarium species associated with disease development, and evaluate seed treatments and host resistance as disease management tools. Root rot was found in all soybean crops surveyed in 2013 and 2014. A total of seven species of Fusarium were identified from infected roots based on their morphological characteristics, with Fusarium avenaceum, F. solani, F. oxysporum, and F. acuminatum occurring most frequently. In greenhouse bioassays, isolates of F. proliferatum and F. acuminatum were the most aggressive, although some isolates of F. acuminatum caused little disease. Seed treatment with ipconazole + metalaxyl + fludioxonil, ipconazole + metalaxyl, fludioxonil + metalaxyl, or penflufen + prothioconazole + metalaxyl resulted in relatively high crop emergence rates (≥70%) under field conditions, while in greenhouse experiments, ipconazole + metalaxyl and carbathiin + thiram provided the best results. The resistance of soybean genotypes to F. avenaceum varied significantly, with genotype 90M01 having the highest emergence rate (83%) under field conditions. In greenhouse trials, the genotype Tundra was most resistant to root rot, whereas TH29002RR was the most susceptible. The results suggest that while root rot represents a significant challenge to soybean production in Alberta, fungicidal seed treatments and planting of genotypes with improved resistance may help to mitigate the impact of this disease. |
author2 |
Kan-Fa Chang (Alberta Agriculture and Forestry) Stephen Strelkov (Agricultural, Food and Nutritional Science) Rudolph.Fredua-Agyeman (Alberta Agriculture and Forestry) Guillermo Hernandez Ramirez (Renwable Resources) |
format |
Thesis |
author |
Nyandoro, Ronald |
author_facet |
Nyandoro, Ronald |
author_sort |
Nyandoro, Ronald |
title |
FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT |
title_short |
FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT |
title_full |
FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT |
title_fullStr |
FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT |
title_full_unstemmed |
FUSARIUM ROOT ROT OF SOYBEAN IN SOUTHERN ALBERTA: PATHOGEN AGGRESSIVENESS AND DISEASE MANAGEMENT |
title_sort |
fusarium root rot of soybean in southern alberta: pathogen aggressiveness and disease management |
publisher |
University of Alberta. Department of Agricultural, Food, and Nutritional Science. |
publishDate |
2017 |
url |
http://hdl.handle.net/10402/era.43654 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
ERA : Education and Research Archive |
op_relation |
10402/era.43654 http://hdl.handle.net/10402/era.43654 |
op_rights |
other |
_version_ |
1766229975145381888 |