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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
05/04/2004 |
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Data da última atualização: |
05/04/2004 |
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Autoria: |
ALLEM, A. C.; ROA, A. C.; MENDES, R. A.; SALOMÃO, A. N.; BURLE, M. L.; SECOND, G.; CARVALHO, P. C. L. de; CAVALCANTI, J. |
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Título: |
The primary genepool of cassava (Manihot esculenta Crantz). |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
Revista Brasileira de Mandioca, Salvador, v. 17 , p. 11, nov, 1998, Suplemento. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: A crop genepool comprises three distinct categories of gene supliers, primary, secondary, and tertiary genepools. The primary genepool (GP1) is composed of gene reservoirs that cross easily with the domesticate and the crosses regularly produce fertile offspring. The secondary (GP2) and tertiary (GP3) genepools of a crop comprise wild gene sources that cross with a certain degree of dificulty with the crop species or may not cross at all, the picture implying in less close genetic distances. The GP1 is further subdivided into cultivated and wild genepools. The cultivated genepool comprises all comercial stocks of the crop besides all indigenous landraces and folk varieties of the domesticate. The wild primary genepool of a crop comprises putative ancestors and closely related species that show a fair degree of fertile relationships with the domesticated varieties. In this context, we suggest the two South American wild subspecies of cassava (M. flabellifolia and M. peruviana) as the original wild stocks which cassava descends from. Another Brazilian species (M. pruinosa) is so close morphologically to the two wild subspecies of cassava that we think the species may become a natural member of the wild GP1 of the indigen. The GP2 of cassava is more difficult to delimit as few species have been tested for fertility relationships. Biosystematic crosses carried out between the crop and the Brazilian wild species M glaziovii and M dichotoma suggest that both are among the estabilished species of the GP2. Based on field experience, we guess that three untested Brazilian species are prospective candidates for the GP2 of cassava: M pilosa, M triphylla, and M brachvloba. 'Me inclusion of Mexican species in the GP1 or GP2 of cassava will have to wait for specific trials since our knowledge of the fertile relationships between these species and the indigen lags well behind the information available for their South American relatives. MenosAbstract: A crop genepool comprises three distinct categories of gene supliers, primary, secondary, and tertiary genepools. The primary genepool (GP1) is composed of gene reservoirs that cross easily with the domesticate and the crosses regularly produce fertile offspring. The secondary (GP2) and tertiary (GP3) genepools of a crop comprise wild gene sources that cross with a certain degree of dificulty with the crop species or may not cross at all, the picture implying in less close genetic distances. The GP1 is further subdivided into cultivated and wild genepools. The cultivated genepool comprises all comercial stocks of the crop besides all indigenous landraces and folk varieties of the domesticate. The wild primary genepool of a crop comprises putative ancestors and closely related species that show a fair degree of fertile relationships with the domesticated varieties. In this context, we suggest the two South American wild subspecies of cassava (M. flabellifolia and M. peruviana) as the original wild stocks which cassava descends from. Another Brazilian species (M. pruinosa) is so close morphologically to the two wild subspecies of cassava that we think the species may become a natural member of the wild GP1 of the indigen. The GP2 of cassava is more difficult to delimit as few species have been tested for fertility relationships. Biosystematic crosses carried out between the crop and the Brazilian wild species M glaziovii and M dichotoma suggest that both are among t... Mostrar Tudo |
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Palavras-Chave: |
Cassava - species. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02576naa a2200217 a 4500
001 1651832
005 2004-04-05
008 1998 bl uuuu u00u1 u #d
100 1 $aALLEM, A. C.
245 $aThe primary genepool of cassava (Manihot esculenta Crantz).
260 $c1998
520 $aAbstract: A crop genepool comprises three distinct categories of gene supliers, primary, secondary, and tertiary genepools. The primary genepool (GP1) is composed of gene reservoirs that cross easily with the domesticate and the crosses regularly produce fertile offspring. The secondary (GP2) and tertiary (GP3) genepools of a crop comprise wild gene sources that cross with a certain degree of dificulty with the crop species or may not cross at all, the picture implying in less close genetic distances. The GP1 is further subdivided into cultivated and wild genepools. The cultivated genepool comprises all comercial stocks of the crop besides all indigenous landraces and folk varieties of the domesticate. The wild primary genepool of a crop comprises putative ancestors and closely related species that show a fair degree of fertile relationships with the domesticated varieties. In this context, we suggest the two South American wild subspecies of cassava (M. flabellifolia and M. peruviana) as the original wild stocks which cassava descends from. Another Brazilian species (M. pruinosa) is so close morphologically to the two wild subspecies of cassava that we think the species may become a natural member of the wild GP1 of the indigen. The GP2 of cassava is more difficult to delimit as few species have been tested for fertility relationships. Biosystematic crosses carried out between the crop and the Brazilian wild species M glaziovii and M dichotoma suggest that both are among the estabilished species of the GP2. Based on field experience, we guess that three untested Brazilian species are prospective candidates for the GP2 of cassava: M pilosa, M triphylla, and M brachvloba. 'Me inclusion of Mexican species in the GP1 or GP2 of cassava will have to wait for specific trials since our knowledge of the fertile relationships between these species and the indigen lags well behind the information available for their South American relatives.
653 $aCassava - species
700 1 $aROA, A. C.
700 1 $aMENDES, R. A.
700 1 $aSALOMÃO, A. N.
700 1 $aBURLE, M. L.
700 1 $aSECOND, G.
700 1 $aCARVALHO, P. C. L. de
700 1 $aCAVALCANTI, J.
773 $tRevista Brasileira de Mandioca, Salvador$gv. 17 , p. 11, nov, 1998, Suplemento.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
10/01/2020 |
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Data da última atualização: |
28/05/2020 |
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Tipo da produção científica: |
Circular Técnica |
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Autoria: |
ROCHA, T. L. P. da; SANTOS, G. A. N. dos; BATISTA, M. F.; OLIVEIRA, L. L. de; BOIJINK, C. de L.; DAIRIKI, J. K. |
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Afiliação: |
Thayssa Larrana Pinto da Rocha, Bolsista de Iniciação Científica, Pibic/CNPq/CPAA; Géssica Aline Nogueira dos Santos, Bolsista de apoio técnico Universal/Fapeam/CPAA; Marcos Froz Batista, Bolsista de Iniciação Científica, Pibic/ CNPq/CPAA; Larissa Lira de Oliveira, Bolsista de Iniciação Científica, Paic/Fapeam/CPAA; CHEILA DE LIMA BOIJINK, CPAA; JONY KOJI DAIRIKI, CPAA. |
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Título: |
Uso de filtro biológico para promover melhorias na qualidade de água de um viveiro experimental na Embrapa Amazônia Ocidental. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Manaus: Embrapa Amazônia Ocidental, 2019. |
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Páginas: |
18 p. |
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Série: |
(Embrapa Amazônia Ocidental. Circular técnica, 74). |
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ISSN: |
1517-2449 |
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Idioma: |
Português |
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Conteúdo: |
O objetivo geral do trabalho foi avaliar e monitorar a qualidade da água de um viveiro escavado destinado à experimentação composto por um sistema de filtro biológico construído nas dependências da Embrapa Amazônia Ocidental, Manaus, Amazonas, Brasil. |
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Thesagro: |
Aquicultura. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/213422/1/Circ-Tec-74.pdf
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Marc: |
LEADER 00974nam a2200217 a 4500
001 2118556
005 2020-05-28
008 2019 bl uuuu u0uu1 u #d
022 $a1517-2449
100 1 $aROCHA, T. L. P. da
245 $aUso de filtro biológico para promover melhorias na qualidade de água de um viveiro experimental na Embrapa Amazônia Ocidental.$h[electronic resource]
260 $aManaus: Embrapa Amazônia Ocidental$c2019
300 $a18 p.
490 $a(Embrapa Amazônia Ocidental. Circular técnica, 74).
520 $aO objetivo geral do trabalho foi avaliar e monitorar a qualidade da água de um viveiro escavado destinado à experimentação composto por um sistema de filtro biológico construído nas dependências da Embrapa Amazônia Ocidental, Manaus, Amazonas, Brasil.
650 $aAquicultura
700 1 $aSANTOS, G. A. N. dos
700 1 $aBATISTA, M. F.
700 1 $aOLIVEIRA, L. L. de
700 1 $aBOIJINK, C. de L.
700 1 $aDAIRIKI, J. K.
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Embrapa Amazônia Ocidental (CPAA) |
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