| Registro completo |
| Provedor de dados: |
Ciencia e Investigación Agraria
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| País: |
Chile
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| Título: |
Sensitivity of wild-type and mutant Trichoderma harzianum strains tofungicides
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| Autores: |
Herrera,Rodrigo
Núñez,David
Romero,Natalia
Besoain,Ximena
Pérez,Luz María
Montealegre,Jaime
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| Data: |
2012-12-01
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| Ano: |
2012
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| Palavras-chave: |
Biocontrol
Biocontrol agents
Control of tomato root diseases
Fungicides
Fungicide tolerant Trichoderma
Integrated management
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| Resumo: |
The germination of conidia in wild-type (Th11, Th12 and Th650) and mutant (Th11A80.1, Th12A10.1 and Th650-NG7) strains of Trichoderma harzianum that were exposed to different commercial fungicides was studied. All wild-type and mutant Trichoderma strains were germinated in the presence of 1,700 mg L-1 of pencycuron. The wild-type strains Th12 and Th650 and the corresponding mutant strains Th12A10.1 and Th650-NG7 were sensitive to all concentrations of iprodione and metalaxil + mancozeb. The EC50 (Median Effective Concentration) values for the different fungicides were between 10-1 and 10-4 less than the concentrations recommended for field applications; one exception was Phyto-fos on Th650-NG7, where this ratio was 0.72. These results establish whether some of these fungicides can be used in combination with the biocontrol agents evaluated.
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| Tipo: |
Journal article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000300016
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| Editor: |
Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
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| Formato: |
text/html
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| Fonte: |
Ciencia e investigación agraria v.39 n.3 2012
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