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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
01/09/1997 |
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Data da última atualização: |
14/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PANDEY, S.; CEBALLOS, H.; MAGNAVACA, R.; BAHIA FILHO, A. F. C.; DUQUE-VARGAS, J.; VINASCO, L. E. |
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Afiliação: |
EMBRAPA/CNPMS; EMBRAPA/CNPMS. |
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Título: |
Gentics of tolerance to soil acidity in Tropical maize. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Crop Science, Madison, v. 34, n. 6, p. 1511-1514, 1994. |
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Idioma: |
Inglês |
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Conteúdo: |
Maize (Zea mays L.) is grown on approximately eight million hectares of acid soils, where yields are low because of the toxicity of Al and Mn and deficiency in Ca, Mg, and P, Maize cultivars tolerant to soil acidity would increase yields on such soils. A diallel study was conducted involving six soil-acidity tolerance and two susceptible segregating populations to identify superior germplasm to develop cultivars for acid soils. The eight populations and their 28 crosses were evaluated in seven acidic soil environments. Tolerant populations averaged higher in yield (2,19 vs. 1.58 Mg ha -1; P<0,01), ears per plant (0,79 vs. 0.64; P<0,05), and ear height (61.6 vs. 51.4 cm; P<0,01), and fewer in days to silk (68.8 vs 69.7d; P<0,05) than the susceptible populations. Mean squares of parents vs. crosses were highly significant for yield, ear height, and ears per plant, and significant for days to silk, indicating heterosis for these traits. Crosses between tolerant populations tended to yield higher (3,00 Mg ha-1) those between tolerant and susceptible populations (2,40 Mg ha-1) and between susceptible populations (2.01 Mg ha-1). General combining ability (GCA) was highly significant for all traits, but specific combinig ability (SCA) was significant only for ears per plant.Reciprocal recurrent selection would be effective in developing superior cultivars for acid soils and should include populations 90SA-3 and 90SA-4 or CMS-36 for yellow endosperm cultivars and 90SA-6 and 90SA-7 for white endosperm cultivars. MenosMaize (Zea mays L.) is grown on approximately eight million hectares of acid soils, where yields are low because of the toxicity of Al and Mn and deficiency in Ca, Mg, and P, Maize cultivars tolerant to soil acidity would increase yields on such soils. A diallel study was conducted involving six soil-acidity tolerance and two susceptible segregating populations to identify superior germplasm to develop cultivars for acid soils. The eight populations and their 28 crosses were evaluated in seven acidic soil environments. Tolerant populations averaged higher in yield (2,19 vs. 1.58 Mg ha -1; P<0,01), ears per plant (0,79 vs. 0.64; P<0,05), and ear height (61.6 vs. 51.4 cm; P<0,01), and fewer in days to silk (68.8 vs 69.7d; P<0,05) than the susceptible populations. Mean squares of parents vs. crosses were highly significant for yield, ear height, and ears per plant, and significant for days to silk, indicating heterosis for these traits. Crosses between tolerant populations tended to yield higher (3,00 Mg ha-1) those between tolerant and susceptible populations (2,40 Mg ha-1) and between susceptible populations (2.01 Mg ha-1). General combining ability (GCA) was highly significant for all traits, but specific combinig ability (SCA) was significant only for ears per plant.Reciprocal recurrent selection would be effective in developing superior cultivars for acid soils and should include populations 90SA-3 and 90SA-4 or CMS-36 for yellow endosperm cultivars and 90SA-6 and 90SA-7 f... Mostrar Tudo |
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Palavras-Chave: |
Al; Aluminium; Maize; Tolerance; Tolerancia. |
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Thesagro: |
Acidez; Melhoramento; Milho; Zea Mays. |
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Thesaurus Nal: |
acidity. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02294naa a2200301 a 4500
001 1476100
005 2018-06-14
008 1994 bl uuuu u00u1 u #d
100 1 $aPANDEY, S.
245 $aGentics of tolerance to soil acidity in Tropical maize.$h[electronic resource]
260 $c1994
520 $aMaize (Zea mays L.) is grown on approximately eight million hectares of acid soils, where yields are low because of the toxicity of Al and Mn and deficiency in Ca, Mg, and P, Maize cultivars tolerant to soil acidity would increase yields on such soils. A diallel study was conducted involving six soil-acidity tolerance and two susceptible segregating populations to identify superior germplasm to develop cultivars for acid soils. The eight populations and their 28 crosses were evaluated in seven acidic soil environments. Tolerant populations averaged higher in yield (2,19 vs. 1.58 Mg ha -1; P<0,01), ears per plant (0,79 vs. 0.64; P<0,05), and ear height (61.6 vs. 51.4 cm; P<0,01), and fewer in days to silk (68.8 vs 69.7d; P<0,05) than the susceptible populations. Mean squares of parents vs. crosses were highly significant for yield, ear height, and ears per plant, and significant for days to silk, indicating heterosis for these traits. Crosses between tolerant populations tended to yield higher (3,00 Mg ha-1) those between tolerant and susceptible populations (2,40 Mg ha-1) and between susceptible populations (2.01 Mg ha-1). General combining ability (GCA) was highly significant for all traits, but specific combinig ability (SCA) was significant only for ears per plant.Reciprocal recurrent selection would be effective in developing superior cultivars for acid soils and should include populations 90SA-3 and 90SA-4 or CMS-36 for yellow endosperm cultivars and 90SA-6 and 90SA-7 for white endosperm cultivars.
650 $aacidity
650 $aAcidez
650 $aMelhoramento
650 $aMilho
650 $aZea Mays
653 $aAl
653 $aAluminium
653 $aMaize
653 $aTolerance
653 $aTolerancia
700 1 $aCEBALLOS, H.
700 1 $aMAGNAVACA, R.
700 1 $aBAHIA FILHO, A. F. C.
700 1 $aDUQUE-VARGAS, J.
700 1 $aVINASCO, L. E.
773 $tCrop Science, Madison$gv. 34, n. 6, p. 1511-1514, 1994.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
16/02/2012 |
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Data da última atualização: |
16/02/2012 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
ABADIA, J. P.; FERREIRA, E. P. de B.; WENDLAND, A.; DIDONET, A. D. |
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Afiliação: |
JULIANA PIRES ABADIA, graduanda UFG; ENDERSON PETRONIO DE BRITO FERREIRA, CNPAF; ADRIANE WENDLAND FERREIRA, CNPAF; AGOSTINHO DIRCEU DIDONET, CNPAF. |
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Título: |
Produção de grãos em relação com reação a doenças em feijoeiro comum cultivado em sistema de manejo orgânico. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 10., 2011, Goiânia. Anais... Goiânia: Embrapa Arroz e Feijão, 2011. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Notas: |
CONAFE. |
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Conteúdo: |
Este trabalho objetivou avaliar a produção de grãos do feijoeiro-comum em sistema de manejo orgânico e os efeitos do crestamento bacteriano comum e da mancha angular sobre a produção do feijoeiro-comum da cultivar BRS supremo sob diferentes tipos de cultura de cobertura e manejo do solo. |
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Thesagro: |
Agricultura orgânica; Doença de planta; Feijão; Phaseolus vulgaris. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/54328/1/MC50.pdf
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Marc: |
LEADER 01010nam a2200217 a 4500
001 1915985
005 2012-02-16
008 2011 bl uuuu u00u1 u #d
100 1 $aABADIA, J. P.
245 $aProdução de grãos em relação com reação a doenças em feijoeiro comum cultivado em sistema de manejo orgânico.
260 $aIn: CONGRESSO NACIONAL DE PESQUISA DE FEIJÃO, 10., 2011, Goiânia. Anais... Goiânia: Embrapa Arroz e Feijão$c2011
300 $c1 CD-ROM.
500 $aCONAFE.
520 $aEste trabalho objetivou avaliar a produção de grãos do feijoeiro-comum em sistema de manejo orgânico e os efeitos do crestamento bacteriano comum e da mancha angular sobre a produção do feijoeiro-comum da cultivar BRS supremo sob diferentes tipos de cultura de cobertura e manejo do solo.
650 $aAgricultura orgânica
650 $aDoença de planta
650 $aFeijão
650 $aPhaseolus vulgaris
700 1 $aFERREIRA, E. P. de B.
700 1 $aWENDLAND, A.
700 1 $aDIDONET, A. D.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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