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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
03/12/2012 |
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Data da última atualização: |
25/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VIEIRA, L. de J.; SOARES, T. L.; ROSSI, M. L.; ALVES, A. A. C.; SANTOS, F. de A. R. dos; SOUZA, F. V. D. |
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Afiliação: |
LÍVIA DE JESUS VIEIRA, UFRB; TALIANE LEILA SOARES, UFRB; MÔNICA LANZONI ROSSI, USP; ALFREDO AUGUSTO CUNHA ALVES, SRI; FRANCISCO DE ASSIS RIBEIRO DOS SANTOS, UEFS; FERNANDA VIDIGAL DUARTE SOUZA, CNPMF. |
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Título: |
Viability, production and morphology of pollen grains for diff erent species in the genus Manihot (Euphorbiaceae). |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Acta Botanica Brasilica, v. 26, n. 2, p. 350-356, 2012. |
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ISSN: |
0102-3306 |
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Idioma: |
Inglês |
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Conteúdo: |
(Viability, production and morphology of pollen grains for different species in the genus Manihot (Euphorbiaceae)). Th e objective of this work was to characterize the viability, production and morphology of pollen for different species in the genus Manihot. Floral buds from Manihot accessions were collected from two germplasm banks at Embrapa Cassava & Fruits. The viability of the pollen was assessed via colorimetric, in vitro and in vivo assays. The diameter of the pollen grains was determined by measuring the transversal length of the grain. The experimental design was entirely randomized. Studies on pollen ultrastructure were performed via scanning electron microscopy. Pollen viability was high in the colorimetric tests and intermediate in vivo tests; there was no germination in the in vitro tests. The average production for all accessions was 1,253 pollen grains per fl oral bud. The size of the pollen grains varied from 132 to 163 µm in the wild accessions, and 129 to 146 µm in the cultivated accessions. Th e pollen grains for all accessions were very large, apolar, spherical as well as inaperturate, with an exine ornamented with pila organized in a Croton pattern. Th e wild accessions, in general, produced more and larger pollen grains compared with the cultivated accessions. |
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Palavras-Chave: |
Melhoramento genético. |
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Thesagro: |
Mandioca; Manihot Esculenta. |
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Thesaurus Nal: |
Breeding and Genetic Improvement; Genetic resources. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02093naa a2200253 a 4500
001 1940940
005 2023-05-25
008 2012 bl uuuu u00u1 u #d
022 $a0102-3306
100 1 $aVIEIRA, L. de J.
245 $aViability, production and morphology of pollen grains for diff erent species in the genus Manihot (Euphorbiaceae).$h[electronic resource]
260 $c2012
520 $a(Viability, production and morphology of pollen grains for different species in the genus Manihot (Euphorbiaceae)). Th e objective of this work was to characterize the viability, production and morphology of pollen for different species in the genus Manihot. Floral buds from Manihot accessions were collected from two germplasm banks at Embrapa Cassava & Fruits. The viability of the pollen was assessed via colorimetric, in vitro and in vivo assays. The diameter of the pollen grains was determined by measuring the transversal length of the grain. The experimental design was entirely randomized. Studies on pollen ultrastructure were performed via scanning electron microscopy. Pollen viability was high in the colorimetric tests and intermediate in vivo tests; there was no germination in the in vitro tests. The average production for all accessions was 1,253 pollen grains per fl oral bud. The size of the pollen grains varied from 132 to 163 µm in the wild accessions, and 129 to 146 µm in the cultivated accessions. Th e pollen grains for all accessions were very large, apolar, spherical as well as inaperturate, with an exine ornamented with pila organized in a Croton pattern. Th e wild accessions, in general, produced more and larger pollen grains compared with the cultivated accessions.
650 $aBreeding and Genetic Improvement
650 $aGenetic resources
650 $aMandioca
650 $aManihot Esculenta
653 $aMelhoramento genético
700 1 $aSOARES, T. L.
700 1 $aROSSI, M. L.
700 1 $aALVES, A. A. C.
700 1 $aSANTOS, F. de A. R. dos
700 1 $aSOUZA, F. V. D.
773 $tActa Botanica Brasilica$gv. 26, n. 2, p. 350-356, 2012.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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