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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
31/03/2000 |
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Data da última atualização: |
16/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
QUEIROZ, M. A. de; DIAS, R. de C. S.; SOUZA, F. de F.; FERREIRA, M. A. J. F.; BORGES, R. M. E. |
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Afiliação: |
MANOEL ABÍLIO DE QUEIROZ, CPATSA; RITA DE CASSIA SOUZA DIAS, CPATSA; FLAVIO DE FRANCA SOUZA; MARIA ALDETE JUSTINIANO FONSECA FERREIRA; RITA MERCIA ESTIGARRIBIA BORGES. |
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Título: |
Watermelon breeding in Brazil. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Acta Horticulturae, Leuven, n. 510, p. 105-112, 2000. |
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ISBN: |
90-6605-852-8 |
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Idioma: |
Inglês |
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Conteúdo: |
Watermelons (Citrullus lanatus) are cultivated on 70.000 hectares in Brazil, scattered in different regions of the coutry. The kinds grown are American cultivars having large fruits of good quality, but they are very susceptible to the watermelon biotic stresses Sphaerotheca fuliginea, Didymella bryoniae, papaya ringspot virus-watermelon strain, and watermelon mosaic virus. Considering the genetic variation of watermelon in the traditional agriculture of Northeastern Brazil, a Watermelon Germplasm Bank housing 600 accessions was organized at Petrolina-PE, Brazil. Some accessions were evaluated in field and greenhouse experiments for resistance to Sphaerotheca fuliginea and Didymella bryoniae. Contrasting parents were crossed in a diallel scheme and a combining ability analysis was performed using the parents and reciprocal F1s. Sources of resistance to powdery mildew were crossed with 'Crimson Sweet' and resistant lines were selected. Sources of resistance to Didymella were also found. Gene action for earliness, fruit weight, fruits per plant and total soluble solids was predominantly additive. Seedlings of powdery mildew-resistant lines were treated with colchicine to double their ploidy. Tetraploid plants were identified and crossed with diploid lines from commercial cultivars to obtain triploid hybrids, which were then evaluated in field experiments. Some of the triploid hybrids showed good yield per plant and high sugar content. They will be evaluated in different watermelon growing regions of the country. MenosWatermelons (Citrullus lanatus) are cultivated on 70.000 hectares in Brazil, scattered in different regions of the coutry. The kinds grown are American cultivars having large fruits of good quality, but they are very susceptible to the watermelon biotic stresses Sphaerotheca fuliginea, Didymella bryoniae, papaya ringspot virus-watermelon strain, and watermelon mosaic virus. Considering the genetic variation of watermelon in the traditional agriculture of Northeastern Brazil, a Watermelon Germplasm Bank housing 600 accessions was organized at Petrolina-PE, Brazil. Some accessions were evaluated in field and greenhouse experiments for resistance to Sphaerotheca fuliginea and Didymella bryoniae. Contrasting parents were crossed in a diallel scheme and a combining ability analysis was performed using the parents and reciprocal F1s. Sources of resistance to powdery mildew were crossed with 'Crimson Sweet' and resistant lines were selected. Sources of resistance to Didymella were also found. Gene action for earliness, fruit weight, fruits per plant and total soluble solids was predominantly additive. Seedlings of powdery mildew-resistant lines were treated with colchicine to double their ploidy. Tetraploid plants were identified and crossed with diploid lines from commercial cultivars to obtain triploid hybrids, which were then evaluated in field experiments. Some of the triploid hybrids showed good yield per plant and high sugar content. They will be evaluated in different waterm... Mostrar Tudo |
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Palavras-Chave: |
Diseases; Melancia sem semente; Melhoramento de planta; resistance; Seedless watermelons; Triploid hybrids; Watermelon. |
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Thesagro: |
Banco de Germoplasma; Citrullus Lanatus; Doença; Melancia; Resistência. |
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Thesaurus Nal: |
gene banks; plant breeding. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02445naa a2200349 a 4500
001 1133876
005 2018-10-16
008 2000 bl uuuu u00u1 u #d
020 $a90-6605-852-8
100 1 $aQUEIROZ, M. A. de
245 $aWatermelon breeding in Brazil.
260 $c2000
520 $aWatermelons (Citrullus lanatus) are cultivated on 70.000 hectares in Brazil, scattered in different regions of the coutry. The kinds grown are American cultivars having large fruits of good quality, but they are very susceptible to the watermelon biotic stresses Sphaerotheca fuliginea, Didymella bryoniae, papaya ringspot virus-watermelon strain, and watermelon mosaic virus. Considering the genetic variation of watermelon in the traditional agriculture of Northeastern Brazil, a Watermelon Germplasm Bank housing 600 accessions was organized at Petrolina-PE, Brazil. Some accessions were evaluated in field and greenhouse experiments for resistance to Sphaerotheca fuliginea and Didymella bryoniae. Contrasting parents were crossed in a diallel scheme and a combining ability analysis was performed using the parents and reciprocal F1s. Sources of resistance to powdery mildew were crossed with 'Crimson Sweet' and resistant lines were selected. Sources of resistance to Didymella were also found. Gene action for earliness, fruit weight, fruits per plant and total soluble solids was predominantly additive. Seedlings of powdery mildew-resistant lines were treated with colchicine to double their ploidy. Tetraploid plants were identified and crossed with diploid lines from commercial cultivars to obtain triploid hybrids, which were then evaluated in field experiments. Some of the triploid hybrids showed good yield per plant and high sugar content. They will be evaluated in different watermelon growing regions of the country.
650 $agene banks
650 $aplant breeding
650 $aBanco de Germoplasma
650 $aCitrullus Lanatus
650 $aDoença
650 $aMelancia
650 $aResistência
653 $aDiseases
653 $aMelancia sem semente
653 $aMelhoramento de planta
653 $aresistance
653 $aSeedless watermelons
653 $aTriploid hybrids
653 $aWatermelon
700 1 $aDIAS, R. de C. S.
700 1 $aSOUZA, F. de F.
700 1 $aFERREIRA, M. A. J. F.
700 1 $aBORGES, R. M. E.
773 $tActa Horticulturae, Leuven$gn. 510, p. 105-112, 2000.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
14/09/2000 |
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Data da última atualização: |
11/02/2015 |
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Autoria: |
FREITAS, A. R. de; SILVA, L. O. C. da; MACHADO, C. H. C.; EUCLIDES FILHO, K.; JOSAHKIAN, L. A. |
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Afiliação: |
Embrapa Pecuaria Sudeste (Sao Carlos, SP). |
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Título: |
Desenvolvimento ponderal da raca Tabapua. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
In: CONVENCAO NACIONAL DA RACA CANCHIM, 4., 2000, Sao Carlos. Resumos dos trabalhos apresentados. Sao Carlos: Embrapa Pecuaria Sudeste / Sao Paulo: ABCCAN, 2000. |
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Páginas: |
p.24. |
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Idioma: |
Português |
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Notas: |
CNPGC. |
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Palavras-Chave: |
Tabapua. |
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Thesagro: |
Bovino; Peso. |
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Thesaurus NAL: |
cattle; weight. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00687nam a2200229 a 4500
001 1323429
005 2015-02-11
008 2000 bl uuuu u0uu1 u #d
100 1 $aFREITAS, A. R. de
245 $aDesenvolvimento ponderal da raca Tabapua.
260 $aIn: CONVENCAO NACIONAL DA RACA CANCHIM, 4., 2000, Sao Carlos. Resumos dos trabalhos apresentados. Sao Carlos: Embrapa Pecuaria Sudeste / Sao Paulo: ABCCAN$c2000
300 $ap.24.
500 $aCNPGC.
650 $acattle
650 $aweight
650 $aBovino
650 $aPeso
653 $aTabapua
700 1 $aSILVA, L. O. C. da
700 1 $aMACHADO, C. H. C.
700 1 $aEUCLIDES FILHO, K.
700 1 $aJOSAHKIAN, L. A.
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