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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
03/01/2000 |
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Data da última atualização: |
23/05/2023 |
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Autoria: |
POWELL, C. A.; PELOSI, R. R.; COHEN, M. |
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Afiliação: |
University of Florida, Institute of Food and Agricultural Sciences. Agricultural Research and Education Center, Fort Pierce. |
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Título: |
Superinfection of orange trees containing mild isolates of citrus tristeza virus with severe Florida isolates of citrus tristeza virus. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Plant Disease, v.76, n.2, p.141-144, 1992. |
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Idioma: |
Inglês |
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Conteúdo: |
The ability of four mild isolates of citrus tristeza virus (CTV) to suppress the spread of Florida severe isolates of CTV into Valencia sweet orange trees propagated on sour orange rooststock was assessed by symptom development over an 8-yr period. Decline symptoms occurred in some of the trees containing each of the mild isolates, as well as the unprotected (no mild isolate) control trees, within 3 yr after planting. After 5 yr, the percentage of decline in trees infected with the four mild isolates was 28, 22, 27, and 25, respectively, compared with 39% for the unprotected control trees. After 8 yr, the percentage of trees with symptoms (stunting or decline) was 75, 76, 74, and 73, respectively, compared with 86% for the control. |
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Palavras-Chave: |
Control; Controle; Diseases; Propagacao; Propagation. |
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Thesagro: |
Doença; Laranja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01398naa a2200229 a 4500
001 1648542
005 2023-05-23
008 1992 bl uuuu u00u1 u #d
100 1 $aPOWELL, C. A.
245 $aSuperinfection of orange trees containing mild isolates of citrus tristeza virus with severe Florida isolates of citrus tristeza virus.$h[electronic resource]
260 $c1992
520 $aThe ability of four mild isolates of citrus tristeza virus (CTV) to suppress the spread of Florida severe isolates of CTV into Valencia sweet orange trees propagated on sour orange rooststock was assessed by symptom development over an 8-yr period. Decline symptoms occurred in some of the trees containing each of the mild isolates, as well as the unprotected (no mild isolate) control trees, within 3 yr after planting. After 5 yr, the percentage of decline in trees infected with the four mild isolates was 28, 22, 27, and 25, respectively, compared with 39% for the unprotected control trees. After 8 yr, the percentage of trees with symptoms (stunting or decline) was 75, 76, 74, and 73, respectively, compared with 86% for the control.
650 $aDoença
650 $aLaranja
653 $aControl
653 $aControle
653 $aDiseases
653 $aPropagacao
653 $aPropagation
700 1 $aPELOSI, R. R.
700 1 $aCOHEN, M.
773 $tPlant Disease$gv.76, n.2, p.141-144, 1992.
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