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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
04/09/1997 |
Data da última atualização: |
19/07/2018 |
Autoria: |
NASPOLINI FILHO, V.; PATERNIANI, E. |
Afiliação: |
EMBRAPA/CNPMS. |
Título: |
Variabilidade fenotípica relativa de híbridos simples, híbridos duplos, variedade e compostos de milho (Zea mays, L.). |
Ano de publicação: |
1973 |
Fonte/Imprenta: |
Relatório Científico ESALQ, Piracicaba, v. 7, p. 131-137, 1973. |
Idioma: |
Português |
Conteúdo: |
Four single crosses, two double crosses, two open pollinated varieties and two composites were evaluated in a split-plot randomized block design with ten replications. Each plot comprised two sub-plots, one with plants spaced 20 cm (50,000 plants/ha) and the other with plants spaced 30 cm (33,333 plants/ha). The experiment was carried out mainly to evaluate the phenotypic variability of the treatment, considering the following characters: day to flowering , number of rows per ear, ears per plant, mumber of kernel grains per row, weight of 50 kernels, weight of ears and weight of grains per plant. Only competitive plants were considered. Phenotypic variability was estimated both in terms of standard desviation and also in term of coefficient of variation.In relation to population density all cultivars exhibited greater coefficient of variation at 50,000 plants/ha than at 33,333 plants/ha, for all characters except for ears per plant and days to flowering. In terms of standard desviation, in general the values were higher for the thinner population (33,333 plants/ha). In general, as expected, varieits had higher phenotypic variability than single crosses for all characters except for earsper plant. Varieties had lower coeefficient of variation than single crosses for ears per plant, weight of 50 kernels, weight of aers and weight of grains per plant. Varieties had greater phenotypic variation and standard desviations than double crosses for all characters except number of kernels per row. Relative (...) MenosFour single crosses, two double crosses, two open pollinated varieties and two composites were evaluated in a split-plot randomized block design with ten replications. Each plot comprised two sub-plots, one with plants spaced 20 cm (50,000 plants/ha) and the other with plants spaced 30 cm (33,333 plants/ha). The experiment was carried out mainly to evaluate the phenotypic variability of the treatment, considering the following characters: day to flowering , number of rows per ear, ears per plant, mumber of kernel grains per row, weight of 50 kernels, weight of ears and weight of grains per plant. Only competitive plants were considered. Phenotypic variability was estimated both in terms of standard desviation and also in term of coefficient of variation.In relation to population density all cultivars exhibited greater coefficient of variation at 50,000 plants/ha than at 33,333 plants/ha, for all characters except for ears per plant and days to flowering. In terms of standard desviation, in general the values were higher for the thinner population (33,333 plants/ha). In general, as expected, varieits had higher phenotypic variability than single crosses for all characters except for earsper plant. Varieties had lower coeefficient of variation than single crosses for ears per plant, weight of 50 kernels, weight of aers and weight of grains per plant. Varieties had greater phenotypic variation and standard desviations than double crosses for all characters except number of kern... Mostrar Tudo |
Palavras-Chave: |
Maize. |
Thesagro: |
Melhoramento; Milho; Zea Mays. |
Thesaurus Nal: |
breeding. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 02119naa a2200193 a 4500 001 1476249 005 2018-07-19 008 1973 bl uuuu u00u1 u #d 100 1 $aNASPOLINI FILHO, V. 245 $aVariabilidade fenotípica relativa de híbridos simples, híbridos duplos, variedade e compostos de milho (Zea mays, L.).$h[electronic resource] 260 $c1973 520 $aFour single crosses, two double crosses, two open pollinated varieties and two composites were evaluated in a split-plot randomized block design with ten replications. Each plot comprised two sub-plots, one with plants spaced 20 cm (50,000 plants/ha) and the other with plants spaced 30 cm (33,333 plants/ha). The experiment was carried out mainly to evaluate the phenotypic variability of the treatment, considering the following characters: day to flowering , number of rows per ear, ears per plant, mumber of kernel grains per row, weight of 50 kernels, weight of ears and weight of grains per plant. Only competitive plants were considered. Phenotypic variability was estimated both in terms of standard desviation and also in term of coefficient of variation.In relation to population density all cultivars exhibited greater coefficient of variation at 50,000 plants/ha than at 33,333 plants/ha, for all characters except for ears per plant and days to flowering. In terms of standard desviation, in general the values were higher for the thinner population (33,333 plants/ha). In general, as expected, varieits had higher phenotypic variability than single crosses for all characters except for earsper plant. Varieties had lower coeefficient of variation than single crosses for ears per plant, weight of 50 kernels, weight of aers and weight of grains per plant. Varieties had greater phenotypic variation and standard desviations than double crosses for all characters except number of kernels per row. Relative (...) 650 $abreeding 650 $aMelhoramento 650 $aMilho 650 $aZea Mays 653 $aMaize 700 1 $aPATERNIANI, E. 773 $tRelatório Científico ESALQ, Piracicaba$gv. 7, p. 131-137, 1973.
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Embrapa Milho e Sorgo (CNPMS) |
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Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
30/04/1998 |
Data da última atualização: |
31/10/2014 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
AZEVEDO, D. M. P. de; BELTRÃO, N. E. de M.; LIMA, E. F.; BATISTA, F. A. S. |
Título: |
Efeito da população de plantas no rendimento da mamoneira. |
Ano de publicação: |
1997 |
Fonte/Imprenta: |
Campina Grande: EMBRAPA-CNPA, 1997. |
Páginas: |
5p. |
Série: |
(EMBRAPA-CNPA. Comunicado Tecnico, 54). |
Idioma: |
Português |
Conteúdo: |
Definir a população ótima da mamoneira para as condições da região fisiográfica do Cariri do Estado da Paraíba. O ensaio foi conduzido na Estação Experimental de Monteiro, situada no município de Monsteiro, PB. |
Palavras-Chave: |
Brasil; Castor bean; Mamoneira; Monteiro; Paraíba; Plantas. |
Thesagro: |
Mamona; População de Planta; Produtividade; Ricinus Communis. |
Categoria do assunto: |
-- X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/110874/1/COMTEC54.pdf
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Marc: |
LEADER 00976nam a2200289 a 4500 001 1269936 005 2014-10-31 008 1997 bl uuuu u0uu1 u #d 100 1 $aAZEVEDO, D. M. P. de 245 $aEfeito da população de plantas no rendimento da mamoneira. 260 $aCampina Grande: EMBRAPA-CNPA$c1997 300 $a5p. 490 $a(EMBRAPA-CNPA. Comunicado Tecnico, 54). 520 $aDefinir a população ótima da mamoneira para as condições da região fisiográfica do Cariri do Estado da Paraíba. O ensaio foi conduzido na Estação Experimental de Monteiro, situada no município de Monsteiro, PB. 650 $aMamona 650 $aPopulação de Planta 650 $aProdutividade 650 $aRicinus Communis 653 $aBrasil 653 $aCastor bean 653 $aMamoneira 653 $aMonteiro 653 $aParaíba 653 $aPlantas 700 1 $aBELTRÃO, N. E. de M. 700 1 $aLIMA, E. F. 700 1 $aBATISTA, F. A. S.
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