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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
23/09/1993 |
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Data da última atualização: |
23/09/1993 |
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Autoria: |
TIMMER, L. W.; BRLANSKY, R. H.; DERRICK, K. S.; LEE, R. F. |
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Afiliação: |
Univ. Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA. |
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Título: |
Transmisssion of citrus blight by root gratf inoculation. |
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Ano de publicação: |
1991 |
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Fonte/Imprenta: |
Riverside, California: International Organization of Citrus Virologists, 1991. |
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Páginas: |
p.244-249 |
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Idioma: |
Inglês |
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Notas: |
Conference of the International Organization of Citrus Virologists, 11., 1991, Riverside, California, Proceedings... |
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Conteúdo: |
In Juny, 1987, 12 mature, blight-affected Valencia sweet orange trees on rough lemon rootstocks were transplanted next to an equal number of healthy trees of the same cultivar. Eight to ten roots were approach-grafted to the adjacent healthy tree. By April 1989, 6 of the 12 previously healthy trees had visible blithy symptoms and by October 1989, 7 of 12 showed symptoms. All symptomatic trees had reduced water uptake, amorphous plugging in xylem vessels and zinc accumulation in trunk wood. None of the nongrafted control trees was was affected by the disease. In a second experiment, 14 Valencia sweet orange trees on rough lemon rootstock were grafted-inoculated with 8 root pieces each with slow water flow from blight-affected trees, a second group of 14 was no n-inoculated controls. After 2 yr, 11 of 14 trees inoculated with roots with slow water flow began to decline and showed all a of the diagnostic characteristics of blight. Eight of 14 trees inoculated with roots roots from blighted trees but with fast water flow, developed symptoms of the disease. All nongrafted control trees remained healthy. By 2-1/2 yr after inoculation, 13 of 14 trees inoculated with slow-flow roots, 9 of 14 inoculated with fast-flow roots and only 1 of 14 of the nongrafted controls was affeted by blight. Blight appears to be caused by an infectious agent that can be transmitted by root grafts. |
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Palavras-Chave: |
Controle; Cultivar valencia; Declinio; Porta-enxerto. |
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Thesagro: |
Crescimento; Doença; Laranja; Limão. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02213naa a2200277 a 4500
001 1644250
005 1993-09-23
008 1991 bl uuuu u00u1 u #d
100 1 $aTIMMER, L. W.
245 $aTransmisssion of citrus blight by root gratf inoculation.
260 $c1991
300 $ap.244-249
500 $aConference of the International Organization of Citrus Virologists, 11., 1991, Riverside, California, Proceedings...
520 $aIn Juny, 1987, 12 mature, blight-affected Valencia sweet orange trees on rough lemon rootstocks were transplanted next to an equal number of healthy trees of the same cultivar. Eight to ten roots were approach-grafted to the adjacent healthy tree. By April 1989, 6 of the 12 previously healthy trees had visible blithy symptoms and by October 1989, 7 of 12 showed symptoms. All symptomatic trees had reduced water uptake, amorphous plugging in xylem vessels and zinc accumulation in trunk wood. None of the nongrafted control trees was was affected by the disease. In a second experiment, 14 Valencia sweet orange trees on rough lemon rootstock were grafted-inoculated with 8 root pieces each with slow water flow from blight-affected trees, a second group of 14 was no n-inoculated controls. After 2 yr, 11 of 14 trees inoculated with roots with slow water flow began to decline and showed all a of the diagnostic characteristics of blight. Eight of 14 trees inoculated with roots roots from blighted trees but with fast water flow, developed symptoms of the disease. All nongrafted control trees remained healthy. By 2-1/2 yr after inoculation, 13 of 14 trees inoculated with slow-flow roots, 9 of 14 inoculated with fast-flow roots and only 1 of 14 of the nongrafted controls was affeted by blight. Blight appears to be caused by an infectious agent that can be transmitted by root grafts.
650 $aCrescimento
650 $aDoença
650 $aLaranja
650 $aLimão
653 $aControle
653 $aCultivar valencia
653 $aDeclinio
653 $aPorta-enxerto
700 1 $aBRLANSKY, R. H.
700 1 $aDERRICK, K. S.
700 1 $aLEE, R. F.
773 $tRiverside, California: International Organization of Citrus Virologists, 1991.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 1. |  | RUMJANEK, N. G.; ZILLI, J. E.; RANGEL, F. W.; PASSOS, S. R.; MARTINS, C. M.; FERREIRA, E. P. de B.; ABOIM, M. C. R.; VINCENTIN, R.; GUERRA, J. G. M.; XAVIER, G. R. Uso do Meio Solo e PCR/DGGE como estratégia para caracterização da comunidade bacteriana. Seropédica: Embrapa Agrobiologia, 2008. 27p. (Embrapa Agrobiologia. Boletim de Pesquisa e Desenvolvimento, 31).| Tipo: Boletim de Pesquisa e Desenvolvimento |
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