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| 6. |  | REIS, N. V. B. de. Comparação da evaporação interna/externa do ar com três modelos de estufas: capela, teto em arco a teto convectivo. Horticultura Brasileira, Brasília, DF, v. 20, n. 2, jul. 2002. Suplemento 2. 1 CD-ROM. Trabalho apresentado no 42° Congresso Brasileiro de Olericultura, 2002. Publicado também como resumo em: Horticultura Brasileira, Brasília, DF, v. 20, n. 2, p. 333, jul. 2002. Suplemento 1.| Biblioteca(s): Embrapa Hortaliças. |
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| Registros recuperados : 114 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
22/11/2021 |
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Data da última atualização: |
22/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
FERREIRA, J. A. B.; LEDO, C. A. da S.; SOUZA, F. V. D.; CONCEIÇÃO, J. Q.; ROSSI, M. L.; SOUZA, E. H. |
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Afiliação: |
JACQUELINE A.B. FERREIRA; CARLOS ALBERTO DA SILVA LEDO, CNPMF; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF; JOSIMARE Q. CONCEIÇÃO; MONICA L. ROSSI; EVERTON H. SOUZA. |
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Título: |
Stigma structure and receptivity in papaya (Carica papaya L.). |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Anais da Academia Brasileira de Ciências, v.93, n.1, e20190605 [2021?]. |
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ISSN: |
1678-2690 |
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DOI: |
10.1590/0001-3765202120190605 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to evaluate the stigma morphoanatomy and receptivity in ten promising papaya accessions, to expand knowledge useful for genetic improvement of the culture. The morphoanatomy was analyzed by light and scanning electron microscopy, and the stigma receptivity was investigated by application of hydrogen peroxide and α-naphthyl-acetate with fast blue B salt, in pre-anthesis, anthesis and post-anthesis. The papaya accessions presented dry stigma surface, presence of one to six erect stigmatic lobes, with structures joined to the upper base of the style and covered with numerous elongated unicellular tubular papillae, distributed on both faces of the epidermis. The morphoanatomy had a similar pattern in all the accessions, differing only in the timing of floral development. The stigma receptivity in some accessions occurred even before floral opening, continuing with greater intensity in anthesis and post-anthesis. Pre-anthesis is the stage least propitious for controlled hybridizations due to the weak or absent stigmatic receptivity. The results obtained provide information on the floral stage that is most propitious for fertilization, as well as supporting future investigations of the botanical morphology of the species. |
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Thesagro: |
Mamão. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228005/1/Stigma-structure.pdf
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Marc: |
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001 2136429
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008 2021 bl uuuu u00u1 u #d
022 $a1678-2690
024 7 $a10.1590/0001-3765202120190605$2DOI
100 1 $aFERREIRA, J. A. B.
245 $aStigma structure and receptivity in papaya (Carica papaya L.).$h[electronic resource]
260 $c2021
520 $aThe objective of this study was to evaluate the stigma morphoanatomy and receptivity in ten promising papaya accessions, to expand knowledge useful for genetic improvement of the culture. The morphoanatomy was analyzed by light and scanning electron microscopy, and the stigma receptivity was investigated by application of hydrogen peroxide and α-naphthyl-acetate with fast blue B salt, in pre-anthesis, anthesis and post-anthesis. The papaya accessions presented dry stigma surface, presence of one to six erect stigmatic lobes, with structures joined to the upper base of the style and covered with numerous elongated unicellular tubular papillae, distributed on both faces of the epidermis. The morphoanatomy had a similar pattern in all the accessions, differing only in the timing of floral development. The stigma receptivity in some accessions occurred even before floral opening, continuing with greater intensity in anthesis and post-anthesis. Pre-anthesis is the stage least propitious for controlled hybridizations due to the weak or absent stigmatic receptivity. The results obtained provide information on the floral stage that is most propitious for fertilization, as well as supporting future investigations of the botanical morphology of the species.
650 $aMamão
700 1 $aLEDO, C. A. da S.
700 1 $aSOUZA, F. V. D.
700 1 $aCONCEIÇÃO, J. Q.
700 1 $aROSSI, M. L.
700 1 $aSOUZA, E. H.
773 $tAnais da Academia Brasileira de Ciências$gv.93, n.1, e20190605 [2021?].
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Embrapa Mandioca e Fruticultura (CNPMF) |
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