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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
16/09/1993 |
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Data da última atualização: |
16/09/1993 |
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Autoria: |
CASTLE, W. S.; PELOSI, R. R.; YOUTSEY, C. O.; GMITTER, JR, F. G.; LEE, R. F.; POWELL, C. A.; HU, X. |
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Afiliação: |
University of Florida, IFAS Citrus Research and Education Center 700 Experiment Station Road, Lake Alfred, FL 33850. |
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Título: |
Rootstocks similar to sour orange for Florida citrus trees. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
Florida State Horticultural Society. v.105, p.56-60, 1992. |
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Idioma: |
Inglês |
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Conteúdo: |
Citrus tristeza virus (CTV) has, in recent years, caused significant loss on sour orange ( C. aurantium L.) in Florida. Possible alternative rootstocks with characteristics similar to sour orange but that are less susceptible or tolerant to CTV are Smooth Flat Seville (SFS), Gou Tou, Zhu Luan, and C. obovoidea Hort. ex Tak. Isozyme genotyme genotypes were developed based on 5 enzyme systems. Zhu Luan, C. obovoidea and SFS were identical except at one locus, and all were different from sour orange at 3 loci. The characteristics of each rootstock are described based on several sources but primarily data from Florida field trials and commercial plantings. Orange and grapefruit trees on SFS in 11 commercial sites were horticulturally similar to trees on sour oran ge, grew well in high pH soil, and the incidences of blight and phytophthora foot rot were low. Individual tree size was variable at each grove siste because of trees on zygotic seedlings as demonstrated by isozyme analysis. Many trees on SFS indexed positive for severe CTV strains but appeard unaffected. A small number of decling and/or stunted trees on SFS were observed but not all were infected with severe CTV. Preliminary indications were that Gou Tou and C. obovoidea are tolerant to Florida severe CTV strains; Zhu Luan is untested. Trees on Bittersweet sour orange at 7 sites were also included in the field survey. Virtually all the sampled trees indexed positive for mild CTV strains but were unaffected; trees with severe strains had declined. MenosCitrus tristeza virus (CTV) has, in recent years, caused significant loss on sour orange ( C. aurantium L.) in Florida. Possible alternative rootstocks with characteristics similar to sour orange but that are less susceptible or tolerant to CTV are Smooth Flat Seville (SFS), Gou Tou, Zhu Luan, and C. obovoidea Hort. ex Tak. Isozyme genotyme genotypes were developed based on 5 enzyme systems. Zhu Luan, C. obovoidea and SFS were identical except at one locus, and all were different from sour orange at 3 loci. The characteristics of each rootstock are described based on several sources but primarily data from Florida field trials and commercial plantings. Orange and grapefruit trees on SFS in 11 commercial sites were horticulturally similar to trees on sour oran ge, grew well in high pH soil, and the incidences of blight and phytophthora foot rot were low. Individual tree size was variable at each grove siste because of trees on zygotic seedlings as demonstrated by isozyme analysis. Many trees on SFS indexed positive for severe CTV strains but appeard unaffected. A small number of decling and/or stunted trees on SFS were observed but not all were infected with severe CTV. Preliminary indications were that Gou Tou and C. obovoidea are tolerant to Florida severe CTV strains; Zhu Luan is untested. Trees on Bittersweet sour orange at 7 sites were also included in the field survey. Virtually all the sampled trees indexed positive for mild CTV strains but were unaffected; trees with ... Mostrar Tudo |
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Palavras-Chave: |
Citrus blight; Isozyme genotype. |
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Thesagro: |
Citrus Aurantium. |
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Thesaurus Nal: |
Citrus tristeza virus. |
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Categoria do assunto: |
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Marc: |
LEADER 02179naa a2200241 a 4500
001 1632787
005 1993-09-16
008 1992 bl uuuu u00u1 u #d
100 1 $aCASTLE, W. S.
245 $aRootstocks similar to sour orange for Florida citrus trees.
260 $c1992
520 $aCitrus tristeza virus (CTV) has, in recent years, caused significant loss on sour orange ( C. aurantium L.) in Florida. Possible alternative rootstocks with characteristics similar to sour orange but that are less susceptible or tolerant to CTV are Smooth Flat Seville (SFS), Gou Tou, Zhu Luan, and C. obovoidea Hort. ex Tak. Isozyme genotyme genotypes were developed based on 5 enzyme systems. Zhu Luan, C. obovoidea and SFS were identical except at one locus, and all were different from sour orange at 3 loci. The characteristics of each rootstock are described based on several sources but primarily data from Florida field trials and commercial plantings. Orange and grapefruit trees on SFS in 11 commercial sites were horticulturally similar to trees on sour oran ge, grew well in high pH soil, and the incidences of blight and phytophthora foot rot were low. Individual tree size was variable at each grove siste because of trees on zygotic seedlings as demonstrated by isozyme analysis. Many trees on SFS indexed positive for severe CTV strains but appeard unaffected. A small number of decling and/or stunted trees on SFS were observed but not all were infected with severe CTV. Preliminary indications were that Gou Tou and C. obovoidea are tolerant to Florida severe CTV strains; Zhu Luan is untested. Trees on Bittersweet sour orange at 7 sites were also included in the field survey. Virtually all the sampled trees indexed positive for mild CTV strains but were unaffected; trees with severe strains had declined.
650 $aCitrus tristeza virus
650 $aCitrus Aurantium
653 $aCitrus blight
653 $aIsozyme genotype
700 1 $aPELOSI, R. R.
700 1 $aYOUTSEY, C. O.
700 1 $aGMITTER, JR, F. G.
700 1 $aLEE, R. F.
700 1 $aPOWELL, C. A.
700 1 $aHU, X.
773 $tFlorida State Horticultural Society.$gv.105, p.56-60, 1992.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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