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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Semiárido. |
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Data corrente: |
09/12/2003 |
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Data da última atualização: |
24/09/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FERREIRA, M. A. J. da F.; QUEIROZ, M. A. de; VENCOVSKY, R.; BRAZ, L. T.; VIEIRA, M. L. C.; BORGES, R. M. E. |
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Afiliação: |
MANOEL ABÍLIO DE QUEIROZ, CPATSA. |
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Título: |
Sexual expression and mating system in watermelon: implications for breeding programs. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 1, p. 39-48, 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
This study had the following objectives: to investigate the sexual expression in seven watermelon populations; to evaluate some population parameters and the genetic potential of a population (PCS) obtained by crossing and segregating for sexual expression and other traits. For verifying the sexual expression, populations were evaluated with respect to type of flower controlled conditions. Maternal and selfed progenies were obtained from the PCS population for field evaluation, considering: fruit yield per plant, fruit weight, number of fruits per plant, flesh colour and sugar content. On the basis of molecular marker data (RAPD), the outcrossing rate (t m and t s, allelic frequencies (p i) and the coefficient of inbreeding (F) were estimated for the PCS population. Result indicated that populations B9 and P14 are andromonoecious in which natural selfing occurs, giving rise to normal fruits. The remaining populations are monoecious PCS practices a mixed mating system (t m = 0.765) and, having shown sufficient genetic variation and relatively low inbreeding depression, has high potential for breeding purposes. The importance of obtaining accurate estimates of the outcrossing rate is pointed out, specially because sexual expression and the mating system are genetically conditioned in watermelon populations.
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Palavras-Chave: |
Genática; Melhoramento genético; RAPD; Sistema mixto de cruzamento; Watermelon. |
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Thesagro: |
Citrullus Lanatus; Melancia; Melhoramento. |
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Categoria do assunto: |
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G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183419/1/Crop-Breeding-and-Applied-Biotechnology-v.2-n.1-p.39-48-2002.pdf
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Marc: |
LEADER 02128naa a2200277 a 4500
001 1133628
005 2018-09-24
008 2002 bl uuuu u00u1 u #d
100 1 $aFERREIRA, M. A. J. da F.
245 $aSexual expression and mating system in watermelon$bimplications for breeding programs.
260 $c2002
520 $aThis study had the following objectives: to investigate the sexual expression in seven watermelon populations; to evaluate some population parameters and the genetic potential of a population (PCS) obtained by crossing and segregating for sexual expression and other traits. For verifying the sexual expression, populations were evaluated with respect to type of flower controlled conditions. Maternal and selfed progenies were obtained from the PCS population for field evaluation, considering: fruit yield per plant, fruit weight, number of fruits per plant, flesh colour and sugar content. On the basis of molecular marker data (RAPD), the outcrossing rate (t m and t s, allelic frequencies (p i) and the coefficient of inbreeding (F) were estimated for the PCS population. Result indicated that populations B9 and P14 are andromonoecious in which natural selfing occurs, giving rise to normal fruits. The remaining populations are monoecious PCS practices a mixed mating system (t m = 0.765) and, having shown sufficient genetic variation and relatively low inbreeding depression, has high potential for breeding purposes. The importance of obtaining accurate estimates of the outcrossing rate is pointed out, specially because sexual expression and the mating system are genetically conditioned in watermelon populations.
650 $aCitrullus Lanatus
650 $aMelancia
650 $aMelhoramento
653 $aGenática
653 $aMelhoramento genético
653 $aRAPD
653 $aSistema mixto de cruzamento
653 $aWatermelon
700 1 $aQUEIROZ, M. A. de
700 1 $aVENCOVSKY, R.
700 1 $aBRAZ, L. T.
700 1 $aVIEIRA, M. L. C.
700 1 $aBORGES, R. M. E.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 1, p. 39-48, 2002.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
20/03/2008 |
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Data da última atualização: |
09/11/2022 |
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Tipo da produção científica: |
Folder/Folheto/Cartilha |
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Autoria: |
ALBUQUERQUE, A. S.; CARDOSO, E. M. R.; FUKUDA, W. M. G. |
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Afiliação: |
ALEJANDRA SEMIRAMIS ALBUQUERQUE, CPATU; ELOISA MARIA RAMOS CARDOSO, CPATU; WANIA MARIA GONCALVES FUKUDA, CNPMF. |
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Título: |
BRS Mari: cultivar de mandioca tolerante à podridão radicular. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Belém, PA: Embrapa Amazônia Oriental; Cruz das Almas: Embrapa Mandioca e Fruticultura Tropical, 2007. |
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Idioma: |
Português |
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Notas: |
1 folder. |
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Thesagro: |
Doença de Planta; Fungo; Mandioca; Phytophthora Drechsleri; Podridão Radicular; Raiz; Solo Úmido; Variedade. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/91270/1/Fd100.pdf
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Marc: |
LEADER 00682nam a2200229 a 4500
001 1409468
005 2022-11-09
008 2007 bl uuuu u0uu1 u #d
100 1 $aALBUQUERQUE, A. S.
245 $aBRS Mari$bcultivar de mandioca tolerante à podridão radicular.
260 $aBelém, PA: Embrapa Amazônia Oriental; Cruz das Almas: Embrapa Mandioca e Fruticultura Tropical$c2007
500 $a1 folder.
650 $aDoença de Planta
650 $aFungo
650 $aMandioca
650 $aPhytophthora Drechsleri
650 $aPodridão Radicular
650 $aRaiz
650 $aSolo Úmido
650 $aVariedade
700 1 $aCARDOSO, E. M. R.
700 1 $aFUKUDA, W. M. G.
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Embrapa Amazônia Oriental (CPATU) |
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