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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: |
17/07/2024 |
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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 ABILIO DE QUEIROZ, CPATSA; RITA DE CASSIA SOUZA DIAS, CPATSA; FLAVIO DE FRANCA SOUZA; MARIA ALDETE JUSTINIANO FONSECA FERREIRA, UNIVERSIDADE DE SÃO PAULO; 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, 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 02437naa a2200349 a 4500
001 1133876
005 2024-07-17
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 $tActa Horticulturae$gn. 510, p. 105-112, 2000.
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Embrapa Semiárido (CPATSA) |
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| 45. |  | ASSUNÇÃO, P. E. V.; WANDER, A. E. Analysis of cointegration in Brazilian bean market. In: INTERNATIONAL CONFERENCE ON AGRICULTURAL STATISTICS, 6., 2013, Rio de Janeiro. Improving statistics for food security, sustainable agriculture, and rural development: linking statistics with decision making: proceedings. Rio de Janeiro: IBGE, 2015. p. 710-711. ICAS 2013.| Tipo: Resumo em Anais de Congresso |
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| 58. | | GAZZOLA, R.; WANDER, A. E.; GAZZOLA, J. Cashew nut almonds: nutritional and market aspects. In: TROPENTAG 2008: INTERNATIONAL CONFERENCE ON RESEARCH FOR DEVELOPMENT IN AGRICULTURE AND FORESTRY, FOOD AND NATURAL RESOURCE MANAGEMENT, 2008, Stuttgart. Competition for resources in a changing world: new drive for rural development: [proceedings]. Stuttgart: University of Hohenheim, 2008. 4 p.| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 59. | | GAZZOLA, R.; WANDER, A. E.; GAZZOLA, J. Cashew nut almonds: nutritional and market aspects. In: TROPENTAG 2008: INTERNATIONAL CONFERENCE ON RESEARCH FOR DEVELOPMENT IN AGRICULTURE AND FORESTRY, FOOD AND NATURAL RESOURCE MANAGEMENT, 2008, Stuttgart. Competition for resources in a changing world: new drive for rural development: [proceedings]. Stuttgart: University of Hohenheim, 2008. 4 p.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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| 60. | | SOUZA, M. de; WANDER, A. E. Cenário do saneamento básico no Brasil. In: OLIVEIRA, R. D.; CARVALHO FILHO, N. de; SOUZA, M. C. de; WANDER, A. E.; VASCONCELOS, C. R. M. (Org.). Tópicos em desenvolvimento regional e urbano. Vila Velha: Opção, 2012. p. 50-63.| Tipo: Capítulo em Livro Técnico-Científico |
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