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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
29/08/2011 |
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Data da última atualização: |
29/08/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
COLOMBARI FILHO, J. M.; OLIVEIRA, J. P. de; CASTRO, A. P. de; MORAIS, O. P. de. |
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Afiliação: |
JOSE MANOEL COLOMBARI FILHO, CNPAF; JAISON PEREIRA DE OLIVEIRA, CNPAF; ADRIANO PEREIRA DE CASTRO, CNPAF; ORLANDO PEIXOTO DE MORAIS, CNPAF. |
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Título: |
Desempenho genotípico de linhagens de arroz irrigado no Estado do Mato Grosso do Sul, via modelos mistos. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 7., 2011, Balneário Camboriú. Racionalizando recursos e ampliando oportunidades: anais. Itajaí: Epagri, 2011. |
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Volume: |
v. 1. |
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Páginas: |
p. 133-136. |
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Idioma: |
Português |
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Conteúdo: |
O presente trabalho teve como objetivo realizar a avaliação genotípica de 56 genótipos (cultivares e linhagens-elite) de arroz irrigado tropical em três locais do estado do Mato Grosso do Sul, em quatro anos agrícolas. Para isso, foram estimados os valores preditos e genotípicos de cada genótipo, para caráter produção de grãos (kg ha-1), para o ambiente médio dos locais, para o estudo da estabilidade e adaptabilidade dos valores genotípicos preditos pelo procedimento da melhor predição linear não viesada (BLUP). |
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Palavras-Chave: |
Blup; Mato Grosso do Sul; REML. |
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Thesagro: |
Arroz irrigado; Genótipo; Melhoramento genético vegetal; Oryza sativa. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40659/1/ft133.pdf
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Marc: |
LEADER 01374nam a2200253 a 4500
001 1899061
005 2011-08-29
008 2011 bl uuuu u00u1 u #d
100 1 $aCOLOMBARI FILHO, J. M.
245 $aDesempenho genotípico de linhagens de arroz irrigado no Estado do Mato Grosso do Sul, via modelos mistos.
260 $aIn: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 7., 2011, Balneário Camboriú. Racionalizando recursos e ampliando oportunidades: anais. Itajaí: Epagri$c2011
300 $ap. 133-136. v. 1.
490 $vv. 1.
520 $aO presente trabalho teve como objetivo realizar a avaliação genotípica de 56 genótipos (cultivares e linhagens-elite) de arroz irrigado tropical em três locais do estado do Mato Grosso do Sul, em quatro anos agrícolas. Para isso, foram estimados os valores preditos e genotípicos de cada genótipo, para caráter produção de grãos (kg ha-1), para o ambiente médio dos locais, para o estudo da estabilidade e adaptabilidade dos valores genotípicos preditos pelo procedimento da melhor predição linear não viesada (BLUP).
650 $aArroz irrigado
650 $aGenótipo
650 $aMelhoramento genético vegetal
650 $aOryza sativa
653 $aBlup
653 $aMato Grosso do Sul
653 $aREML
700 1 $aOLIVEIRA, J. P. de
700 1 $aCASTRO, A. P. de
700 1 $aMORAIS, O. P. de
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
17/11/1999 |
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Data da última atualização: |
23/08/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CANCADO, G. M. A.; LOGUERCIO, L. L.; MARTINS, P. R.; PARENTONI, S. N.; PAIVA, E.; BOREM, A.; LOPES, M. A. |
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Afiliação: |
EMBRAPA/CNPMS; SIDNEY NETTO PARENTONI, CNPMS. |
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Título: |
Hematoxylin staining as a phenotypic index for aluminum tolerance selection in tropical maize (Zea mays L.). |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Theoretical and Applied Genetics, New York, v. 99, n. 5, p. 747-754, 1999. |
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Idioma: |
Inglês |
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Conteúdo: |
Hematoxylin staining is an early indicator of aluminum (Al) toxicity effects on the apices of young, developing roots grown in nutrient solution. In this work, the potential of this technique as a reliable and reproducible phenotypic index for Al tolerance in tropical maize genotypes was assessed, with its performance systematically compared to two other parameters widely used in breeding programs - relative seminal-roots length (RSRL) and net seminal-root length (NSRL). Seeding roots from contrasting genotypes for Al sensitivity stained remarkably different after 24- and 48-h and 7-day exposures to 222 uM Al in nutrient solution, with the Al-dye complex being detected in both the outer (epidermis) and inner (cortex) portions of the roots from the sensitive cultivar. Hemotoxylin staining was compared to the RSRL and NSRL parameters using 20 families from the third generation of selfing (S3) following the cross between two contrasting inbred lines that had been previously classified by the RSRL index in an independent procedure. The coloration technique showed the highest capacity to discriminate among tolerant and sensitive genotypes and displayed significant correlation coefficient to the other two indexes. Evaluation of the results from diallel crosses involving nine inbred lines proved that hematoxylin staining was also particularly adequate for identifying expressive hybrid vigor, as demonstrated by the general (GCA) and specific (SCA) combining ability estimates obtained by using the three indexex simultaneously. Hence, hematoxylin staining of Al-stressed root apices appears to be a powerful tool to assist in Al-tolerance selection in tropical maize breeding programs. MenosHematoxylin staining is an early indicator of aluminum (Al) toxicity effects on the apices of young, developing roots grown in nutrient solution. In this work, the potential of this technique as a reliable and reproducible phenotypic index for Al tolerance in tropical maize genotypes was assessed, with its performance systematically compared to two other parameters widely used in breeding programs - relative seminal-roots length (RSRL) and net seminal-root length (NSRL). Seeding roots from contrasting genotypes for Al sensitivity stained remarkably different after 24- and 48-h and 7-day exposures to 222 uM Al in nutrient solution, with the Al-dye complex being detected in both the outer (epidermis) and inner (cortex) portions of the roots from the sensitive cultivar. Hemotoxylin staining was compared to the RSRL and NSRL parameters using 20 families from the third generation of selfing (S3) following the cross between two contrasting inbred lines that had been previously classified by the RSRL index in an independent procedure. The coloration technique showed the highest capacity to discriminate among tolerant and sensitive genotypes and displayed significant correlation coefficient to the other two indexes. Evaluation of the results from diallel crosses involving nine inbred lines proved that hematoxylin staining was also particularly adequate for identifying expressive hybrid vigor, as demonstrated by the general (GCA) and specific (SCA) combining ability estimates obtaine... Mostrar Tudo |
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Thesagro: |
Aluminio. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/40394/1/Hematoxylin-staining.pdf
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Marc: |
LEADER 02337naa a2200205 a 4500
001 1482859
005 2020-08-23
008 1999 bl uuuu u00u1 u #d
100 1 $aCANCADO, G. M. A.
245 $aHematoxylin staining as a phenotypic index for aluminum tolerance selection in tropical maize (Zea mays L.).$h[electronic resource]
260 $c1999
520 $aHematoxylin staining is an early indicator of aluminum (Al) toxicity effects on the apices of young, developing roots grown in nutrient solution. In this work, the potential of this technique as a reliable and reproducible phenotypic index for Al tolerance in tropical maize genotypes was assessed, with its performance systematically compared to two other parameters widely used in breeding programs - relative seminal-roots length (RSRL) and net seminal-root length (NSRL). Seeding roots from contrasting genotypes for Al sensitivity stained remarkably different after 24- and 48-h and 7-day exposures to 222 uM Al in nutrient solution, with the Al-dye complex being detected in both the outer (epidermis) and inner (cortex) portions of the roots from the sensitive cultivar. Hemotoxylin staining was compared to the RSRL and NSRL parameters using 20 families from the third generation of selfing (S3) following the cross between two contrasting inbred lines that had been previously classified by the RSRL index in an independent procedure. The coloration technique showed the highest capacity to discriminate among tolerant and sensitive genotypes and displayed significant correlation coefficient to the other two indexes. Evaluation of the results from diallel crosses involving nine inbred lines proved that hematoxylin staining was also particularly adequate for identifying expressive hybrid vigor, as demonstrated by the general (GCA) and specific (SCA) combining ability estimates obtained by using the three indexex simultaneously. Hence, hematoxylin staining of Al-stressed root apices appears to be a powerful tool to assist in Al-tolerance selection in tropical maize breeding programs.
650 $aAluminio
700 1 $aLOGUERCIO, L. L.
700 1 $aMARTINS, P. R.
700 1 $aPARENTONI, S. N.
700 1 $aPAIVA, E.
700 1 $aBOREM, A.
700 1 $aLOPES, M. A.
773 $tTheoretical and Applied Genetics, New York$gv. 99, n. 5, p. 747-754, 1999.
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Embrapa Milho e Sorgo (CNPMS) |
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