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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo; Embrapa Pesca e Aquicultura. |
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Data corrente: |
21/03/2023 |
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Data da última atualização: |
14/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 4 |
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Autoria: |
COSTA, R. V. da; ALMEIDA, R. E. M. de; COTA, L. V.; SILVA, D. D. da; LIMA, L. S.; SOUSA, C. W. A. de; SOUZA, M. R. de. |
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Afiliação: |
RODRIGO VERAS DA COSTA, CNPMS; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; LUCIANO VIANA COTA, CNPMS; DAGMA DIONISIA DA SILVA ARAUJO, CNPMS; LILA SOARES LIMA, Faculdade Católica Do Tocantins; CÉSAR WILLIAM ALBUQUERQUE DE SOUSA, Instituto Federal Do Tocantins; MICAELE RODRIGUES DE SOUZA. |
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Título: |
Corn stunt disease complex increases charcoal rot (Macrophomina phaseolina) under field conditions. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Tropical Plant Pathology, v. 48, p. 283-292, 2023. |
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DOI: |
https://doi.org/10.1007/s40858-023-00570-z |
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Idioma: |
Inglês |
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Conteúdo: |
Maize production areas where corn stunt epidemics have been observed in the last three years exhibited severe symptoms of plant lodging. Consequently, plant lodging has been attributed to the causal agents of corn stunt disease complex. This study evaluated the association between corn stunting and charcoal rot diseases, and explained the occurrence of plant lodging in areas with a high incidence of corn stunting. Maize hybrid P30F53 VYH, which is susceptible to stalk rot and corn stunting, was sown in two areas. All maize plants from half of each experimental area were inoculated with the fungus of charcoal rot in corn, Macrophomina phaseolina. Corn stunting occurred naturally in the experimental areas, allowing the establishment of the following treatments: 1) inoculated with M. phaseolina and showing typical corn stunting symptoms; 2) inoculated with M. phaseolina and showing no symptoms of corn stunting; 3) not inoculated with M. phaseolina and showing symptoms of corn stunting; and 4) not inoculated with M. phaseolina and showing no symptoms of corn stunting. The incidence of early death was highest under combined infection (treatment 1). Plants with combined infection had 30% higher severity of charcoal rot in the inoculated internode that those with only charcoal rot. Plants with combined infection had 93.7% higher severity of charcoal rot in the internode above the inoculated internode and higher number of internodes with charcoal rot symptoms than those under other treatments. Plants with no disease had higher grain yield than those with isolated or combined infections. Combined infections resulted in reductions of all productivity components. For our knowledge this is the first scientific report showing that corn stunt disease complex increase stalk rot severity caused by M. phaseolina. MenosMaize production areas where corn stunt epidemics have been observed in the last three years exhibited severe symptoms of plant lodging. Consequently, plant lodging has been attributed to the causal agents of corn stunt disease complex. This study evaluated the association between corn stunting and charcoal rot diseases, and explained the occurrence of plant lodging in areas with a high incidence of corn stunting. Maize hybrid P30F53 VYH, which is susceptible to stalk rot and corn stunting, was sown in two areas. All maize plants from half of each experimental area were inoculated with the fungus of charcoal rot in corn, Macrophomina phaseolina. Corn stunting occurred naturally in the experimental areas, allowing the establishment of the following treatments: 1) inoculated with M. phaseolina and showing typical corn stunting symptoms; 2) inoculated with M. phaseolina and showing no symptoms of corn stunting; 3) not inoculated with M. phaseolina and showing symptoms of corn stunting; and 4) not inoculated with M. phaseolina and showing no symptoms of corn stunting. The incidence of early death was highest under combined infection (treatment 1). Plants with combined infection had 30% higher severity of charcoal rot in the inoculated internode that those with only charcoal rot. Plants with combined infection had 93.7% higher severity of charcoal rot in the internode above the inoculated internode and higher number of internodes with charcoal rot symptoms than those under other ... Mostrar Tudo |
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Palavras-Chave: |
Infecção mista; Molicute; Predisposição a doenças. |
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Thesagro: |
Doença de Planta; Doença Fúngica; Fungo; Milho; Podridão do Colmo. |
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Thesaurus NAL: |
Fungal diseases of plants; Mixed infection; Mollicutes. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02829naa a2200337 a 4500
001 2152550
005 2023-06-14
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s40858-023-00570-z$2DOI
100 1 $aCOSTA, R. V. da
245 $aCorn stunt disease complex increases charcoal rot (Macrophomina phaseolina) under field conditions.$h[electronic resource]
260 $c2023
520 $aMaize production areas where corn stunt epidemics have been observed in the last three years exhibited severe symptoms of plant lodging. Consequently, plant lodging has been attributed to the causal agents of corn stunt disease complex. This study evaluated the association between corn stunting and charcoal rot diseases, and explained the occurrence of plant lodging in areas with a high incidence of corn stunting. Maize hybrid P30F53 VYH, which is susceptible to stalk rot and corn stunting, was sown in two areas. All maize plants from half of each experimental area were inoculated with the fungus of charcoal rot in corn, Macrophomina phaseolina. Corn stunting occurred naturally in the experimental areas, allowing the establishment of the following treatments: 1) inoculated with M. phaseolina and showing typical corn stunting symptoms; 2) inoculated with M. phaseolina and showing no symptoms of corn stunting; 3) not inoculated with M. phaseolina and showing symptoms of corn stunting; and 4) not inoculated with M. phaseolina and showing no symptoms of corn stunting. The incidence of early death was highest under combined infection (treatment 1). Plants with combined infection had 30% higher severity of charcoal rot in the inoculated internode that those with only charcoal rot. Plants with combined infection had 93.7% higher severity of charcoal rot in the internode above the inoculated internode and higher number of internodes with charcoal rot symptoms than those under other treatments. Plants with no disease had higher grain yield than those with isolated or combined infections. Combined infections resulted in reductions of all productivity components. For our knowledge this is the first scientific report showing that corn stunt disease complex increase stalk rot severity caused by M. phaseolina.
650 $aFungal diseases of plants
650 $aMixed infection
650 $aMollicutes
650 $aDoença de Planta
650 $aDoença Fúngica
650 $aFungo
650 $aMilho
650 $aPodridão do Colmo
653 $aInfecção mista
653 $aMolicute
653 $aPredisposição a doenças
700 1 $aALMEIDA, R. E. M. de
700 1 $aCOTA, L. V.
700 1 $aSILVA, D. D. da
700 1 $aLIMA, L. S.
700 1 $aSOUSA, C. W. A. de
700 1 $aSOUZA, M. R. de
773 $tTropical Plant Pathology$gv. 48, p. 283-292, 2023.
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