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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
26/11/2015 |
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Data da última atualização: |
26/11/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; MORAIS, O. P.; CARVALHO, M. C. S.; COLOMBARI FILHO, J. M. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ORLANDO PEIXOTO DE MORAIS, CNPAF; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; JOSE MANOEL COLOMBARI FILHO, CNPAF. |
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Título: |
Upland rice genotype evaluations for acidity tolerance. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 46, n. 9, p. 1076-1096, 2015. |
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DOI: |
10.1080/00103624.2015.1018525 |
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Idioma: |
Inglês |
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Conteúdo: |
Upland rice is an important crop in South American cropping systems. In Brazil it is mainly grown in the central area, locally known as the Cerrado region. Soils of the Cerrado region are acidic and have poor fertility. A greenhouse experiment was conducted with the objective to evaluate thirty upland rice genotypes for acidity tolerance. Two acidity levels were created: high (without lime addition) and low (addition of 2.5 g dolomitic lime per kg soil). Plant height, straw yield, grain yield, panicle number, thousand-grain weight, spikelet sterility, grain harvest index (GHI), maximum root length, and root dry weight were significantly influenced by lime and genotype treatments. Lime × genotype interactions were also significant for most of these traits, indicating variation in these treats with the variation in acidity levels. Based on grain yield acidity tolerance index (GYATI), genotypes were classified as tolerant, moderately tolerant, and susceptible to soil acidity. Among thirty genotypes, 30 percent were classified as tolerant, 53 percent were classified as moderately tolerant, and 17 percent were classified as susceptible to soil acidity. Most of the growth, yield, and yield components had significant quadratic positive association with grain yield across two acidity levels. Soil acidity indices such as pH, base saturation, calcium (Ca) saturation, magnesium (Mg) saturation, and potassium (K) saturation increased with the addition of lime. Phosphorus content also increased with the addition of lime. However, hydrogen and aluminum (H + Al) and iron (Fe) content decreased with the addition of lime. Adequate soil acidity indices for grain yield were established. MenosUpland rice is an important crop in South American cropping systems. In Brazil it is mainly grown in the central area, locally known as the Cerrado region. Soils of the Cerrado region are acidic and have poor fertility. A greenhouse experiment was conducted with the objective to evaluate thirty upland rice genotypes for acidity tolerance. Two acidity levels were created: high (without lime addition) and low (addition of 2.5 g dolomitic lime per kg soil). Plant height, straw yield, grain yield, panicle number, thousand-grain weight, spikelet sterility, grain harvest index (GHI), maximum root length, and root dry weight were significantly influenced by lime and genotype treatments. Lime × genotype interactions were also significant for most of these traits, indicating variation in these treats with the variation in acidity levels. Based on grain yield acidity tolerance index (GYATI), genotypes were classified as tolerant, moderately tolerant, and susceptible to soil acidity. Among thirty genotypes, 30 percent were classified as tolerant, 53 percent were classified as moderately tolerant, and 17 percent were classified as susceptible to soil acidity. Most of the growth, yield, and yield components had significant quadratic positive association with grain yield across two acidity levels. Soil acidity indices such as pH, base saturation, calcium (Ca) saturation, magnesium (Mg) saturation, and potassium (K) saturation increased with the addition of lime. Phosphorus content also in... Mostrar Tudo |
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Palavras-Chave: |
Root. |
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Thesagro: |
Acidez do solo; Arroz; Cerrado; Genótipo; Oryza sativa; Raíz; Rendimento. |
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Thesaurus Nal: |
Grain yield; Rice. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02499naa a2200289 a 4500
001 2029609
005 2015-11-26
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1080/00103624.2015.1018525$2DOI
100 1 $aFAGERIA, N. K.
245 $aUpland rice genotype evaluations for acidity tolerance.$h[electronic resource]
260 $c2015
520 $aUpland rice is an important crop in South American cropping systems. In Brazil it is mainly grown in the central area, locally known as the Cerrado region. Soils of the Cerrado region are acidic and have poor fertility. A greenhouse experiment was conducted with the objective to evaluate thirty upland rice genotypes for acidity tolerance. Two acidity levels were created: high (without lime addition) and low (addition of 2.5 g dolomitic lime per kg soil). Plant height, straw yield, grain yield, panicle number, thousand-grain weight, spikelet sterility, grain harvest index (GHI), maximum root length, and root dry weight were significantly influenced by lime and genotype treatments. Lime × genotype interactions were also significant for most of these traits, indicating variation in these treats with the variation in acidity levels. Based on grain yield acidity tolerance index (GYATI), genotypes were classified as tolerant, moderately tolerant, and susceptible to soil acidity. Among thirty genotypes, 30 percent were classified as tolerant, 53 percent were classified as moderately tolerant, and 17 percent were classified as susceptible to soil acidity. Most of the growth, yield, and yield components had significant quadratic positive association with grain yield across two acidity levels. Soil acidity indices such as pH, base saturation, calcium (Ca) saturation, magnesium (Mg) saturation, and potassium (K) saturation increased with the addition of lime. Phosphorus content also increased with the addition of lime. However, hydrogen and aluminum (H + Al) and iron (Fe) content decreased with the addition of lime. Adequate soil acidity indices for grain yield were established.
650 $aGrain yield
650 $aRice
650 $aAcidez do solo
650 $aArroz
650 $aCerrado
650 $aGenótipo
650 $aOryza sativa
650 $aRaíz
650 $aRendimento
653 $aRoot
700 1 $aMORAIS, O. P.
700 1 $aCARVALHO, M. C. S.
700 1 $aCOLOMBARI FILHO, J. M.
773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 46, n. 9, p. 1076-1096, 2015.
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Embrapa Arroz e Feijão (CNPAF) |
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| 68. |  | OSORIO, R. M. L.; AZEVEDO, D. B.; MALAFAIA, G. C.; TEIXEIRA, L. M. A. Percepções dos especialistas frente às mudanças climáticas: Integração Lavoura-Pecuária-Floresta como alternativa sustentável à produção de alimentos, fibras e energia no agronegócio. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 51., Belém, PA, 2013. Novas fronteiras da agropecuária no Brasil e na Amazônia: desafios da sustentabilidade: anais. Belém, PA: SOBER, 2013. 22. p| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| 74. | | AZEVEDO, D. B. de; PEDROZO, E. A.; MALAFAIA, G. C.; COSTA, F. P. Negociações e Conflitos no Agronegócio Brasileiro: Um olhar sobre o dilema produção de alimentos e bioenergia do Instituto do Agronegócio Sustentável In: CONGRESSO DA SOCIEDADE BRASILEIRA DE ECONOMIA, ADMINISTRAÇÃO E SOCIOLOGIA RURAL, 49., 2011, Belo Horizonte. Demografia e meio rural: população, políticas públicas e desenvolvimento : anais. Belo Horizonte: Sociedade Brasileira de Economia, Administração e Sociologia Rural, 2011. 1 CD-ROM SOBER 2011| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Corte. |
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| Registros recuperados : 151 | |
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