|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
11/09/2023 |
Data da última atualização: |
10/11/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
OLIVEIRA, C. M. de; SABATO, E. de O.; BARROS, B. de A. |
Afiliação: |
CHARLES MARTINS DE OLIVEIRA, CPAC; ELIZABETH DE OLIVEIRA SABATO, PESQUISADORA APOSENTADA-CNPMS; BEATRIZ DE ALMEIDA BARROS, CNPMS. |
Título: |
Natural infectivity of Dalbulus maidis populations and incidence of corn stunt and virus diseases in maize over time. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Tropical Plant Pathology, v. 48, p. 575-580, 2023. |
DOI: |
https://doi.org/10.1007/s40858-023-00599-0 |
Idioma: |
Inglês |
Conteúdo: |
The aim of this study was to evaluate the natural infectivity of Dalbulus maidis with spiroplasma (corn stunt spiroplasma'CSS'Spiroplasma kunkelii), phytoplasma (maize bushy stunt phytoplasma'MBSP), and virus (maize rayado fino virus'MRFV) through transmission tests using two densities of leafhoppers (one and five adult D. maidis) collected fortnightly from maize fields during two agricultural years. During 35 months D. maidis adults were collected in maize at intervals of 15 days with entomological net (Sete Lagoas/MG, Brazil). The leafhoppers were confined in number of one or five individuals by maize plant (V2 stage) for an inoculation access period (IAP) of five days. At flowering stage, plant disease symptoms were evaluated. The total percentage of plants showing symptoms of infection by at least one of the pathogens (spiroplasma, phytoplasma or MRFV) was significantly higher for plants that were exposed to five leafhoppers (24.2%) compared to those exposed to one leafhopper (12.3%). The percent of diseased plants was similar in Autumn (20.0%), Winter (18.8%), Springer (16.1%) and Summer (18.3%). However, spiroplasma infection was predominant in Summer. Our results demonstrated that a five-fold increase in the number of D. maidis on maize plants led to a two-fold increase in the number of symptomatic plants. Under natural conditions, leafhoppers have the ability to visit multiple plants during the post-emergence phase, thereby transmitting pathogens to multiple plants that become source plants for corn stunt and virus diseases. Therefore, population reduction of D. maidis can be a critical strategy for managing these diseases in maize crops. MenosThe aim of this study was to evaluate the natural infectivity of Dalbulus maidis with spiroplasma (corn stunt spiroplasma'CSS'Spiroplasma kunkelii), phytoplasma (maize bushy stunt phytoplasma'MBSP), and virus (maize rayado fino virus'MRFV) through transmission tests using two densities of leafhoppers (one and five adult D. maidis) collected fortnightly from maize fields during two agricultural years. During 35 months D. maidis adults were collected in maize at intervals of 15 days with entomological net (Sete Lagoas/MG, Brazil). The leafhoppers were confined in number of one or five individuals by maize plant (V2 stage) for an inoculation access period (IAP) of five days. At flowering stage, plant disease symptoms were evaluated. The total percentage of plants showing symptoms of infection by at least one of the pathogens (spiroplasma, phytoplasma or MRFV) was significantly higher for plants that were exposed to five leafhoppers (24.2%) compared to those exposed to one leafhopper (12.3%). The percent of diseased plants was similar in Autumn (20.0%), Winter (18.8%), Springer (16.1%) and Summer (18.3%). However, spiroplasma infection was predominant in Summer. Our results demonstrated that a five-fold increase in the number of D. maidis on maize plants led to a two-fold increase in the number of symptomatic plants. Under natural conditions, leafhoppers have the ability to visit multiple plants during the post-emergence phase, thereby transmitting pathogens to multiple plants t... Mostrar Tudo |
Palavras-Chave: |
Densidade populacional; Infecciosidade natural; Manejo integrado; Natural infectivity. |
Thesagro: |
Inseto; Vetor. |
Thesaurus Nal: |
Insect vectors; Integrated pest management; Population density. |
Categoria do assunto: |
O Insetos e Entomologia |
Marc: |
LEADER 02524naa a2200265 a 4500 001 2156553 005 2023-11-10 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1007/s40858-023-00599-0$2DOI 100 1 $aOLIVEIRA, C. M. de 245 $aNatural infectivity of Dalbulus maidis populations and incidence of corn stunt and virus diseases in maize over time.$h[electronic resource] 260 $c2023 520 $aThe aim of this study was to evaluate the natural infectivity of Dalbulus maidis with spiroplasma (corn stunt spiroplasma'CSS'Spiroplasma kunkelii), phytoplasma (maize bushy stunt phytoplasma'MBSP), and virus (maize rayado fino virus'MRFV) through transmission tests using two densities of leafhoppers (one and five adult D. maidis) collected fortnightly from maize fields during two agricultural years. During 35 months D. maidis adults were collected in maize at intervals of 15 days with entomological net (Sete Lagoas/MG, Brazil). The leafhoppers were confined in number of one or five individuals by maize plant (V2 stage) for an inoculation access period (IAP) of five days. At flowering stage, plant disease symptoms were evaluated. The total percentage of plants showing symptoms of infection by at least one of the pathogens (spiroplasma, phytoplasma or MRFV) was significantly higher for plants that were exposed to five leafhoppers (24.2%) compared to those exposed to one leafhopper (12.3%). The percent of diseased plants was similar in Autumn (20.0%), Winter (18.8%), Springer (16.1%) and Summer (18.3%). However, spiroplasma infection was predominant in Summer. Our results demonstrated that a five-fold increase in the number of D. maidis on maize plants led to a two-fold increase in the number of symptomatic plants. Under natural conditions, leafhoppers have the ability to visit multiple plants during the post-emergence phase, thereby transmitting pathogens to multiple plants that become source plants for corn stunt and virus diseases. Therefore, population reduction of D. maidis can be a critical strategy for managing these diseases in maize crops. 650 $aInsect vectors 650 $aIntegrated pest management 650 $aPopulation density 650 $aInseto 650 $aVetor 653 $aDensidade populacional 653 $aInfecciosidade natural 653 $aManejo integrado 653 $aNatural infectivity 700 1 $aSABATO, E. de O. 700 1 $aBARROS, B. de A. 773 $tTropical Plant Pathology$gv. 48, p. 575-580, 2023.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Agroenergia. |
Data corrente: |
25/09/2019 |
Data da última atualização: |
25/05/2020 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
FAVARO, S. P.; MIRANDA, C. H. B.; MALULEQUE, I. F.; COSSA, V. J.; FLUGENCIA, F.; MAMBA, A. C; JAMAL, A. M.; PIMENTEL, L. D. |
Afiliação: |
SIMONE PALMA FAVARO, CNPAE; CESAR HERACLIDES BEHLING MIRANDA, CNPAE; Ivete F. Maluleque, Mozambican Institute for Agricultural Research; VANIA J. COSSA, Mozambican Institute for Agricultural Research; Mozambican Institute for Agricultural Research; ARISTIDES C. MAMBA, Mozambican Institute for Agricultural Research; ARNALDO M. JAMAL, Mozambican Institute for Agricultural Research; LEONARDO D. PIMENTEL, Federal University of Viçosa. |
Título: |
Agroforestry systems in Mozambique as part of a South-South cooperation project. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
In: TROPENTAG. INTERNATIONAL CONFERENCE ON RESEARCH ON FOOD SECURITY, NATURAL RESOURCE MANAGEMENT AND RURAL DEVELOPMENT, Kassel, 2019. Filling gaps and removing traps for sustainable resources management. Kassel, Germany: University of Kassel, 2019. |
Idioma: |
Inglês |
Palavras-Chave: |
Small farm agriculture. |
Thesaurus NAL: |
Biofuels; Food production. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/202298/1/TROPENTAG-2019-Abstract.pdf
|
Marc: |
LEADER 00848nam a2200217 a 4500 001 2112463 005 2020-05-25 008 2019 bl uuuu u00u1 u #d 100 1 $aFAVARO, S. P. 245 $aAgroforestry systems in Mozambique as part of a South-South cooperation project.$h[electronic resource] 260 $aIn: TROPENTAG. INTERNATIONAL CONFERENCE ON RESEARCH ON FOOD SECURITY, NATURAL RESOURCE MANAGEMENT AND RURAL DEVELOPMENT, Kassel, 2019. Filling gaps and removing traps for sustainable resources management. Kassel, Germany: University of Kassel$c2019 650 $aBiofuels 650 $aFood production 653 $aSmall farm agriculture 700 1 $aMIRANDA, C. H. B. 700 1 $aMALULEQUE, I. F. 700 1 $aCOSSA, V. J. 700 1 $aFLUGENCIA, F. 700 1 $aMAMBA, A. C 700 1 $aJAMAL, A. M. 700 1 $aPIMENTEL, L. D.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Agroenergia (CNPAE) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|