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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
19/08/2002 |
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Data da última atualização: |
24/08/2004 |
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Autoria: |
ARAÚJO, P. M. de; MIRANDA FILHO, J. B. de. |
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Título: |
Analysis of diallel cross from the evaluation of maize populations across environments. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 1, n. 3, p. 255-262, Sept. 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
Eleven open-pollinated maize (Zea mays L.) populations were crossed in a diallel scheme and evaluated in five locations in the State of Parana: (1) Ponta Grossa, [2] Pato Branco, [3] Palotina, [4] Londrina and [5] Guarapuava. Two commercial hybrids (P 3230 and BR 201) were included as checks in the experiments, thus completing 68 entries (11 parents, 55 hybrids and 2 checks). The objetctive of this study was to obtain information about the performance per se, heterotic pattern and combining ability of these populations for the choice of the most promising for use in recurrent selection and hybrid development programs. |
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Palavras-Chave: |
Análise dialélica; Diallel cross; Heterose; Maize; Paraná. |
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Thesagro: |
Milho; População; Seleção Recorrente; Zea Mays. |
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Thesaurus Nal: |
heterosis; population. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01368naa a2200265 a 4500
001 1210288
005 2004-08-24
008 2001 bl uuuu u00u1 u #d
100 1 $aARAÚJO, P. M. de
245 $aAnalysis of diallel cross from the evaluation of maize populations across environments.
260 $c2001
520 $aEleven open-pollinated maize (Zea mays L.) populations were crossed in a diallel scheme and evaluated in five locations in the State of Parana: (1) Ponta Grossa, [2] Pato Branco, [3] Palotina, [4] Londrina and [5] Guarapuava. Two commercial hybrids (P 3230 and BR 201) were included as checks in the experiments, thus completing 68 entries (11 parents, 55 hybrids and 2 checks). The objetctive of this study was to obtain information about the performance per se, heterotic pattern and combining ability of these populations for the choice of the most promising for use in recurrent selection and hybrid development programs.
650 $aheterosis
650 $apopulation
650 $aMilho
650 $aPopulação
650 $aSeleção Recorrente
650 $aZea Mays
653 $aAnálise dialélica
653 $aDiallel cross
653 $aHeterose
653 $aMaize
653 $aParaná
700 1 $aMIRANDA FILHO, J. B. de
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 1, n. 3, p. 255-262, Sept. 2001.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
11/12/2015 |
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Data da última atualização: |
11/10/2023 |
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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: |
COSER, T. R.; RAMOS, M. L. G.; FIGUEIREDO, C. C. de; URQUIAGA, S.; CARVALHO, A. M. de; BARROS, F. V.; MENDONÇA, M. T. |
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Afiliação: |
THAIS RODRIGUES COSE, UNB; MARIA LUCRÉCIA GEROSA RAMOS, UNB; CÍCERO CÉLIO DE FIGUEIREDO, UNB; SEGUNDO SACRAMENTO U CABALLERO, CNPAB; ARMINDA MOREIRA DE CARVALHO, CPAC; FILIPE VIEIRA BARROS, UNB; MARIA THEREZA MENDONÇA. |
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Título: |
Nitrogen uptake efficiency of maize in monoculture and intercropped with Brachiaria humidicola and Panicum maximum in a dystrophic red-yellow latosol of the Brazilian Cerrado. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Crop & Pasture Science, v. 67, n. 1, p. 47-54, 2015. |
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DOI: |
http://dx.doi.org/10.1071/CP15077 |
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Idioma: |
Inglês |
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Conteúdo: |
No-tillage systems associated with intercropping practices of grains and forages as cover crops are increasing in the Cerrado agricultural areas. The aim of this study was to quantify the nitrogen (N) uptake efficiency of maize (Zea mays L.) grown as monoculture and intercropped with tropical forages under a no-tillage system by using the 15N isotope tracer in conjunction with measurements of soil microbial biomass N and available soil N. The experiment was conducted in the 2010?11 growing season, in a Dystrophic Red-Yellow Latosol (Typic Haplustox) in the Cerrado. The experiment was established in a complete randomised block design with three replicates with the following treatments: maize monoculture; maize intercropped with Panicum maximum Jacq. cv. Aruana; and maize intercropped with Brachiaria humidicola (Rendle) Schweick. Nitrogen was applied as ammonium sulfate at a rate of 100 kg ha?1 (30 kg N ha?1 was applied at planting and 70 kg N ha?1 as a side-dressing). The N-fertiliser uptake efficiency in maize and grain yield was not affected by the presence of the intercropped forages. The intercropped B. humidicola and P. maximum recovered 2.08% and 3.71% of the N fertiliser applied, respectively. The soil was the main N source for maize. Maize intercropped with P. maximum showed higher values of microbial biomass N and available N in the soil. |
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Palavras-Chave: |
Soil N Microbial biomass. |
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Thesagro: |
Oxisol. |
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Thesaurus NAL: |
Soil analysis. |
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Categoria do assunto: |
-- |
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URL: |
https://www.publish.csiro.au/?paper=CP15077
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Marc: |
LEADER 02163naa a2200241 a 4500
001 2031452
005 2023-10-11
008 2015 bl --- 0-- u #d
024 7 $ahttp://dx.doi.org/10.1071/CP15077$2DOI
100 1 $aCOSER, T. R.
245 $aNitrogen uptake efficiency of maize in monoculture and intercropped with Brachiaria humidicola and Panicum maximum in a dystrophic red-yellow latosol of the Brazilian Cerrado.
260 $c2015
520 $aNo-tillage systems associated with intercropping practices of grains and forages as cover crops are increasing in the Cerrado agricultural areas. The aim of this study was to quantify the nitrogen (N) uptake efficiency of maize (Zea mays L.) grown as monoculture and intercropped with tropical forages under a no-tillage system by using the 15N isotope tracer in conjunction with measurements of soil microbial biomass N and available soil N. The experiment was conducted in the 2010?11 growing season, in a Dystrophic Red-Yellow Latosol (Typic Haplustox) in the Cerrado. The experiment was established in a complete randomised block design with three replicates with the following treatments: maize monoculture; maize intercropped with Panicum maximum Jacq. cv. Aruana; and maize intercropped with Brachiaria humidicola (Rendle) Schweick. Nitrogen was applied as ammonium sulfate at a rate of 100 kg ha?1 (30 kg N ha?1 was applied at planting and 70 kg N ha?1 as a side-dressing). The N-fertiliser uptake efficiency in maize and grain yield was not affected by the presence of the intercropped forages. The intercropped B. humidicola and P. maximum recovered 2.08% and 3.71% of the N fertiliser applied, respectively. The soil was the main N source for maize. Maize intercropped with P. maximum showed higher values of microbial biomass N and available N in the soil.
650 $aSoil analysis
650 $aOxisol
653 $aSoil N Microbial biomass
700 1 $aRAMOS, M. L. G.
700 1 $aFIGUEIREDO, C. C. de
700 1 $aURQUIAGA, S.
700 1 $aCARVALHO, A. M. de
700 1 $aBARROS, F. V.
700 1 $aMENDONÇA, M. T.
773 $tCrop & Pasture Science$gv. 67, n. 1, p. 47-54, 2015.
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Embrapa Agrobiologia (CNPAB) |
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