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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
09/06/1993 |
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Data da última atualização: |
15/05/2007 |
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Autoria: |
TOLEDO, J. F. F. de. |
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Título: |
Quantitative genetics in soybean breeding. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
In: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Buenos Aires: AASOJA, 1989. |
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Páginas: |
p. 17. |
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Idioma: |
Inglês |
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Conteúdo: |
Hybridazation in the breeding programme of an autogamous species is usually decided on the basis of complementary qualitative characters. Whenever quantitative traits are involved a relatively high degree of randomness is involved in the observed results. Recently, however, a new methodology has been developed for predicting the breeding potential of a cross allowing a reliable preview of the outcome of a breeding programme still in its early days. It has been applied to a soybean breeding programme in Parana State, Brazil. The correlations between predicted and observd proportions of inbred lines outyielding the check cultivars (Parana and BR-5) and their average, for 17 biparental crosses among well adapted materials, were 0.74, 0.61 and 0.77, respectively. Selecting the best six crosses based on their predicted potential to generate inbred lines outyielding the mean of Parana and BR-5 resulted in picking those crosses that were 1st, 2nd, 3rd, 5th, 6th and 7th placed in actual breeding potential. It was concluded that the new methodology allowed the early selection ofpotent crosses. |
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Palavras-Chave: |
Brasil; Genetic; Parana; Soybean. |
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Thesagro: |
Genética; Melhoramento; Soja. |
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Thesaurus Nal: |
Brazil; breeding. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01715naa a2200241 a 4500
001 1449693
005 2007-05-15
008 1989 bl uuuu u00u1 u #d
100 1 $aTOLEDO, J. F. F. de
245 $aQuantitative genetics in soybean breeding.
260 $c1989
300 $ap. 17.
520 $aHybridazation in the breeding programme of an autogamous species is usually decided on the basis of complementary qualitative characters. Whenever quantitative traits are involved a relatively high degree of randomness is involved in the observed results. Recently, however, a new methodology has been developed for predicting the breeding potential of a cross allowing a reliable preview of the outcome of a breeding programme still in its early days. It has been applied to a soybean breeding programme in Parana State, Brazil. The correlations between predicted and observd proportions of inbred lines outyielding the check cultivars (Parana and BR-5) and their average, for 17 biparental crosses among well adapted materials, were 0.74, 0.61 and 0.77, respectively. Selecting the best six crosses based on their predicted potential to generate inbred lines outyielding the mean of Parana and BR-5 resulted in picking those crosses that were 1st, 2nd, 3rd, 5th, 6th and 7th placed in actual breeding potential. It was concluded that the new methodology allowed the early selection ofpotent crosses.
650 $aBrazil
650 $abreeding
650 $aGenética
650 $aMelhoramento
650 $aSoja
653 $aBrasil
653 $aGenetic
653 $aParana
653 $aSoybean
773 $tIn: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Buenos Aires: AASOJA, 1989.
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Embrapa Soja (CNPSO) |
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| Registros recuperados : 247 | |
| 1. |  | TOLEDO, J. F. F. de. Análise biométrica no estudo da interação genótipo x ambiente. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 3., 2005, Gramado. Anais... Passo Fundo: Embrapa Trigo; Sociedade Brasileira de Melhoramento de Plantas, 2005. Palestra: Pdf.33. Editado por Ana Christina Sagebin Albuquerque, Cláudia de Mori, Edson Iorczeski, João Carlos Haas, Paulo Fernando Bertagnolli.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 247 | |
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