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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
24/09/2009 |
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Data da última atualização: |
14/04/2010 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
RIBEIRO, L. R.; AMORIM, E. P.; CORDEIRO, Z. M.; SILVA, S. O.; DITA, M. A. |
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Afiliação: |
Lindinéia Rios Ribeiro, UFRB; Edson Perito Amorim, CNPMF; Zilton José Maciel Cordeiro, CNPMF; Sebastião de Oliveira e Silva, CNPMF; Miguel Angel Dita, CNPMF. |
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Título: |
Discrimination of banana genotypes for Fusarium wilt resistance in greenhouse. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: ISHS/PROMUSA BANANA SYMPOSIUM, 2009, Guangzhou, China. Global perspectives on asian challenges: programme and abstracts. Guangzhou: ISHS: Promusa, 2009. p. 46. |
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Idioma: |
Inglês |
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Conteúdo: |
Among the major constrains to banana breeding for Fusarium wilt resistance is the long period necessary for evaluations in the field and the lack of an effective method for early detection of resistant genotypes. This work aimed to establish a screening method for Fusarium wilt resistance under greenhouse conditions and to validate its reliability by challenging cultivars with different levels of resistance. In a firts step, two types of substrates (vermiculite and washed river sand) and three inoculum sources (conidial suspension from 1- week-old colonies grown in potato dextrose agar (PDA), conidial suspension produced after stress of 1-week-old colonies and Foc-colonised corn meal-sand (CMS) medium) were studied by inoculating 45-day-old plantlets of 'Silk' (AAB, susceptible) in a double-tray system. Symptoms were observed in plants grown in both substrates, but highest incidence occurred in washed river sand. Low infection rates were observed when using conidial suspension from PDA-grown colonies. By contrast, inocula from stressed colonies and CMS caused consistent symptom expression. Using washed river sand as substrate and inoculum from PDA-grown stressed colonies and/or Foc-colonised CMS, plantlets of the cultivares 'Tropical' (AAAB) and 'Thap Maeo' (AAB) (field intermediate resistance) were challenged. Plantlets of 'Silk' and 'Grande Naine' (AAA) were used as susceptible and resistant controls, respectively. While the incubation period in Silk was 13 days after inoculation (dai), in 'Tropical' and 'Thap Maeo' initial symptoms were only observed at 17 dai. No symptoms were observed in 'Grande Naine'. The disease progress evaluated based on external symptoms and rhizome discoloration scales allowed cultivars discrimination according to resistance levels. Since experiments were repeated three times with similar results, our research suggests that the method here described could be suitable for early detection of banana genotypes resistant to Fusarium wilt. MenosAmong the major constrains to banana breeding for Fusarium wilt resistance is the long period necessary for evaluations in the field and the lack of an effective method for early detection of resistant genotypes. This work aimed to establish a screening method for Fusarium wilt resistance under greenhouse conditions and to validate its reliability by challenging cultivars with different levels of resistance. In a firts step, two types of substrates (vermiculite and washed river sand) and three inoculum sources (conidial suspension from 1- week-old colonies grown in potato dextrose agar (PDA), conidial suspension produced after stress of 1-week-old colonies and Foc-colonised corn meal-sand (CMS) medium) were studied by inoculating 45-day-old plantlets of 'Silk' (AAB, susceptible) in a double-tray system. Symptoms were observed in plants grown in both substrates, but highest incidence occurred in washed river sand. Low infection rates were observed when using conidial suspension from PDA-grown colonies. By contrast, inocula from stressed colonies and CMS caused consistent symptom expression. Using washed river sand as substrate and inoculum from PDA-grown stressed colonies and/or Foc-colonised CMS, plantlets of the cultivares 'Tropical' (AAAB) and 'Thap Maeo' (AAB) (field intermediate resistance) were challenged. Plantlets of 'Silk' and 'Grande Naine' (AAA) were used as susceptible and resistant controls, respectively. While the incubation period in Silk was 13 days after inoc... Mostrar Tudo |
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Thesagro: |
Banana; Fusariose; Genótipo. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02656naa a2200205 a 4500
001 1655784
005 2010-04-14
008 2009 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, L. R.
245 $aDiscrimination of banana genotypes for Fusarium wilt resistance in greenhouse.
260 $c2009
520 $aAmong the major constrains to banana breeding for Fusarium wilt resistance is the long period necessary for evaluations in the field and the lack of an effective method for early detection of resistant genotypes. This work aimed to establish a screening method for Fusarium wilt resistance under greenhouse conditions and to validate its reliability by challenging cultivars with different levels of resistance. In a firts step, two types of substrates (vermiculite and washed river sand) and three inoculum sources (conidial suspension from 1- week-old colonies grown in potato dextrose agar (PDA), conidial suspension produced after stress of 1-week-old colonies and Foc-colonised corn meal-sand (CMS) medium) were studied by inoculating 45-day-old plantlets of 'Silk' (AAB, susceptible) in a double-tray system. Symptoms were observed in plants grown in both substrates, but highest incidence occurred in washed river sand. Low infection rates were observed when using conidial suspension from PDA-grown colonies. By contrast, inocula from stressed colonies and CMS caused consistent symptom expression. Using washed river sand as substrate and inoculum from PDA-grown stressed colonies and/or Foc-colonised CMS, plantlets of the cultivares 'Tropical' (AAAB) and 'Thap Maeo' (AAB) (field intermediate resistance) were challenged. Plantlets of 'Silk' and 'Grande Naine' (AAA) were used as susceptible and resistant controls, respectively. While the incubation period in Silk was 13 days after inoculation (dai), in 'Tropical' and 'Thap Maeo' initial symptoms were only observed at 17 dai. No symptoms were observed in 'Grande Naine'. The disease progress evaluated based on external symptoms and rhizome discoloration scales allowed cultivars discrimination according to resistance levels. Since experiments were repeated three times with similar results, our research suggests that the method here described could be suitable for early detection of banana genotypes resistant to Fusarium wilt.
650 $aBanana
650 $aFusariose
650 $aGenótipo
700 1 $aAMORIM, E. P.
700 1 $aCORDEIRO, Z. M.
700 1 $aSILVA, S. O.
700 1 $aDITA, M. A.
773 $tIn: ISHS/PROMUSA BANANA SYMPOSIUM, 2009, Guangzhou, China. Global perspectives on asian challenges: programme and abstracts. Guangzhou: ISHS: Promusa, 2009. p. 46.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
25/09/2017 |
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Data da última atualização: |
16/11/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
MORAES, R. F.; PEREIRA, C. A. B.; CORRÊA, C. L. P. da S.; NORONHA, A. C. da S. |
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Afiliação: |
RODRIGO FONSECA MORAES, BOLSISTA EMBRAPA; CELSO ANDERSON BATISTA PEREIRA, ADEPARÁ; CARLA LETÍCIA PARÁ DA SILVA CORRÊA, ADEPARÁ; ALOYSEIA CRISTINA DA SILVA NORONHA, CPATU. |
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Título: |
Ácaro-vermelho-das-palmeiras no Estado do Pará. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 21., 2017, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental, 2017. |
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Idioma: |
Português |
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Conteúdo: |
O ácaro-vermelho-das-palmeiras Raioella indica Hirst (Acari: Tenuipalpidae) é uma espécie invasora, reportada no Brasil em 2009 no Estado de Roraima e atualmente encontra-se presente em alguns Estados das regiões Norte, Nordeste, Sudeste e Sul. No Estado do Pará R. indica foi constatado no município de Juruti, localizado na mesorregião do Baixo Amazonas. Com o objetivo de delimitar a área de ocorrência do ácaro no Estado, foram realizados levantamentos quanto à presença de R. indica em municípios do Baixo Amazonas. Inspeções com coletas de material (folhas com ácaros) foram realizadas por fiscais da Agência de Defesa Agropecuária do Pará, em plantas de coqueiro, bananeira, açaizeiro e palmeiras ornamentais, em áreas urbana e rural dos municípios. No laboratório de Entomologia da Embrapa Amazônia Oriental os ácaros foram montados em meio de Hoyer para posterior identificação. Foram analisadas 56 amostras referentes aos municípios de Alenquer, Curuá, Monte Alegre, Óbidos, Santarém e Terra Santa, com a confirmação da presença de R. indica nesses municípios. |
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Palavras-Chave: |
Coqueiro; Raoiella indica. |
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Thesagro: |
Ácaro. |
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Thesaurus NAL: |
Tenuipalpidae. |
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Categoria do assunto: |
O Insetos e Entomologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/164276/1/Anais-Pibic-2017-On-line-09.pdf
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Marc: |
LEADER 01748nam a2200193 a 4500
001 2076233
005 2023-11-16
008 2017 bl uuuu u00u1 u #d
100 1 $aMORAES, R. F.
245 $aÁcaro-vermelho-das-palmeiras no Estado do Pará.$h[electronic resource]
260 $aIn: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 21., 2017, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental$c2017
520 $aO ácaro-vermelho-das-palmeiras Raioella indica Hirst (Acari: Tenuipalpidae) é uma espécie invasora, reportada no Brasil em 2009 no Estado de Roraima e atualmente encontra-se presente em alguns Estados das regiões Norte, Nordeste, Sudeste e Sul. No Estado do Pará R. indica foi constatado no município de Juruti, localizado na mesorregião do Baixo Amazonas. Com o objetivo de delimitar a área de ocorrência do ácaro no Estado, foram realizados levantamentos quanto à presença de R. indica em municípios do Baixo Amazonas. Inspeções com coletas de material (folhas com ácaros) foram realizadas por fiscais da Agência de Defesa Agropecuária do Pará, em plantas de coqueiro, bananeira, açaizeiro e palmeiras ornamentais, em áreas urbana e rural dos municípios. No laboratório de Entomologia da Embrapa Amazônia Oriental os ácaros foram montados em meio de Hoyer para posterior identificação. Foram analisadas 56 amostras referentes aos municípios de Alenquer, Curuá, Monte Alegre, Óbidos, Santarém e Terra Santa, com a confirmação da presença de R. indica nesses municípios.
650 $aTenuipalpidae
650 $aÁcaro
653 $aCoqueiro
653 $aRaoiella indica
700 1 $aPEREIRA, C. A. B.
700 1 $aCORRÊA, C. L. P. da S.
700 1 $aNORONHA, A. C. da S.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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