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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Meio Norte / UEP-Parnaíba; Embrapa Rondônia; Embrapa Semiárido; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
24/01/1994 |
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Data da última atualização: |
23/06/2006 |
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Autoria: |
ABREU, C. A. de; PURCINO, J. R. C.; PURCINO, A. A. C. |
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Título: |
Azolla: fonte alternativa de nitrogênio para arroz cultivado em várzeas inundáveis. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Belo Horizonte: EPAMIG, 1985. |
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Páginas: |
20 p. |
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Série: |
(EPAMIG. Boletim Técnico, 20). |
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ISSN: |
0101-062X |
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Idioma: |
Português |
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Conteúdo: |
Ecologia da azolla; Fatores do ambiente que afetam o crescimento e a atividade de fixação de N2; Crescimento da azolla; Sistemas de cultivo de azolla; Práticas de manejo; Pragas e doenças; Aplicações da azolla na agricultura; Resultados experimentais. |
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Palavras-Chave: |
Azola; Azolla microphyla; Azolla nilotica; Azolla rubra; Controle de doenca; Controle de praga; Cultivo; Cultural methods; Disease; Doencas; Fixacao; Fixing; Flooded land; Management; Pest; Plantas aquaticas; Pragas; Varzeas. |
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Thesagro: |
Arroz; Azolla; Fixação de Nitrogênio; Manejo; Nitrogênio; Oryza Sativa; Pratica Cultural; Várzea. |
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Thesaurus Nal: |
Azolla caroliniana; Azolla filiculoides; Azolla mexicana; Azolla pinnata; disease control; nitrogen; nitrogen fixation; pest control; Rice. |
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Categoria do assunto: |
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A Sistemas de Cultivo |
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Marc: |
LEADER 01734nam a2200589 a 4500
001 1194176
005 2006-06-23
008 1985 bl uuuu u0uu1 u #d
022 $a0101-062X
100 1 $aABREU, C. A. de
245 $aAzolla$bfonte alternativa de nitrogênio para arroz cultivado em várzeas inundáveis.
260 $aBelo Horizonte: EPAMIG$c1985
300 $a20 p.
490 $a(EPAMIG. Boletim Técnico, 20).
520 $aEcologia da azolla; Fatores do ambiente que afetam o crescimento e a atividade de fixação de N2; Crescimento da azolla; Sistemas de cultivo de azolla; Práticas de manejo; Pragas e doenças; Aplicações da azolla na agricultura; Resultados experimentais.
650 $aAzolla caroliniana
650 $aAzolla filiculoides
650 $aAzolla mexicana
650 $aAzolla pinnata
650 $adisease control
650 $anitrogen
650 $anitrogen fixation
650 $apest control
650 $aRice
650 $aArroz
650 $aAzolla
650 $aFixação de Nitrogênio
650 $aManejo
650 $aNitrogênio
650 $aOryza Sativa
650 $aPratica Cultural
650 $aVárzea
653 $aAzola
653 $aAzolla microphyla
653 $aAzolla nilotica
653 $aAzolla rubra
653 $aControle de doenca
653 $aControle de praga
653 $aCultivo
653 $aCultural methods
653 $aDisease
653 $aDoencas
653 $aFixacao
653 $aFixing
653 $aFlooded land
653 $aManagement
653 $aPest
653 $aPlantas aquaticas
653 $aPragas
653 $aVarzeas
700 1 $aPURCINO, J. R. C.
700 1 $aPURCINO, A. A. C.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
04/11/1997 |
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Data da última atualização: |
11/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BORRERO, J. C.; PANDEY, S.; CEBALLOS, H.; MAGNAVACA, R.; BAHIA FILHO, A. F. C. |
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Afiliação: |
EMBRAPA/CNPMS. |
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Título: |
Genetic variances for tolerance to soil acidity in a tropical maize population. |
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Ano de publicação: |
1995 |
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Fonte/Imprenta: |
Maydica, Bergamo, v. 40, n. 3, p. 283-288, 1995. |
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Idioma: |
Inglês |
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Conteúdo: |
Soil acidity reduces yield on approximately 10% of the maize (Zea mays L.) area in developing countries. Information on the inheritance of acid-soil tolerance would help scientists chose more appropriate methods for efficient breeding of tolerant cultivars. We used a North Carolina Design II mating system to study the relative importance of additive (VA) and dominante (VD) variances and their interactions with environments in the 'SA-4' tropical maize population. One-hundred-sixty S1 lines were randomly assigned to 20 sets of eight lines. Within each set, four lines were arbitrarly designated as males and four as females. Each male was crossed with each female in the et, providing 16 full-sib familes. The 20 sets, with 16 full-sib families each, were field-planted in two replications in one non-acid- and four acid-soil environments during 1992 in Colombia and Brazil. Across acid soils, VD was significantly greater than VA for yield (0.22 vs. 0.09) and days to silk (2.33 vs. 1.35) and lower for ear height (23.93 vs. 37.48), ears/plant (0.0013 vs. 0.0018), and ear rot (4.86 vs. 13.68). Heritabilities, based on half-sib family means, averaged 0.39+/-0.14 for yield, 0,43+/-0.14 for days to silk, 0.66+/-0.13 for ear height, 0,47+/-0.14 for ears plant-1, and 0,48+/-0.14 for ear rot across the acid-soil environments. Magnitudes of VA and VD and their interactions with environments indicated that reciprocal recurrent selection, using multilocation testing would be effective for developing improved maize cultivars (...) MenosSoil acidity reduces yield on approximately 10% of the maize (Zea mays L.) area in developing countries. Information on the inheritance of acid-soil tolerance would help scientists chose more appropriate methods for efficient breeding of tolerant cultivars. We used a North Carolina Design II mating system to study the relative importance of additive (VA) and dominante (VD) variances and their interactions with environments in the 'SA-4' tropical maize population. One-hundred-sixty S1 lines were randomly assigned to 20 sets of eight lines. Within each set, four lines were arbitrarly designated as males and four as females. Each male was crossed with each female in the et, providing 16 full-sib familes. The 20 sets, with 16 full-sib families each, were field-planted in two replications in one non-acid- and four acid-soil environments during 1992 in Colombia and Brazil. Across acid soils, VD was significantly greater than VA for yield (0.22 vs. 0.09) and days to silk (2.33 vs. 1.35) and lower for ear height (23.93 vs. 37.48), ears/plant (0.0013 vs. 0.0018), and ear rot (4.86 vs. 13.68). Heritabilities, based on half-sib family means, averaged 0.39+/-0.14 for yield, 0,43+/-0.14 for days to silk, 0.66+/-0.13 for ear height, 0,47+/-0.14 for ears plant-1, and 0,48+/-0.14 for ear rot across the acid-soil environments. Magnitudes of VA and VD and their interactions with environments indicated that reciprocal recurrent selection, using multilocation testing would be effective for deve... Mostrar Tudo |
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Thesagro: |
Milho. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02057naa a2200181 a 4500
001 1477166
005 2018-06-11
008 1995 bl uuuu u00u1 u #d
100 1 $aBORRERO, J. C.
245 $aGenetic variances for tolerance to soil acidity in a tropical maize population.$h[electronic resource]
260 $c1995
520 $aSoil acidity reduces yield on approximately 10% of the maize (Zea mays L.) area in developing countries. Information on the inheritance of acid-soil tolerance would help scientists chose more appropriate methods for efficient breeding of tolerant cultivars. We used a North Carolina Design II mating system to study the relative importance of additive (VA) and dominante (VD) variances and their interactions with environments in the 'SA-4' tropical maize population. One-hundred-sixty S1 lines were randomly assigned to 20 sets of eight lines. Within each set, four lines were arbitrarly designated as males and four as females. Each male was crossed with each female in the et, providing 16 full-sib familes. The 20 sets, with 16 full-sib families each, were field-planted in two replications in one non-acid- and four acid-soil environments during 1992 in Colombia and Brazil. Across acid soils, VD was significantly greater than VA for yield (0.22 vs. 0.09) and days to silk (2.33 vs. 1.35) and lower for ear height (23.93 vs. 37.48), ears/plant (0.0013 vs. 0.0018), and ear rot (4.86 vs. 13.68). Heritabilities, based on half-sib family means, averaged 0.39+/-0.14 for yield, 0,43+/-0.14 for days to silk, 0.66+/-0.13 for ear height, 0,47+/-0.14 for ears plant-1, and 0,48+/-0.14 for ear rot across the acid-soil environments. Magnitudes of VA and VD and their interactions with environments indicated that reciprocal recurrent selection, using multilocation testing would be effective for developing improved maize cultivars (...)
650 $aMilho
700 1 $aPANDEY, S.
700 1 $aCEBALLOS, H.
700 1 $aMAGNAVACA, R.
700 1 $aBAHIA FILHO, A. F. C.
773 $tMaydica, Bergamo$gv. 40, n. 3, p. 283-288, 1995.
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Embrapa Milho e Sorgo (CNPMS) |
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