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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
24/07/2012 |
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Data da última atualização: |
28/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUSA, S. M. de; CLARK, R. T.; MENDES, F. F.; OLIVEIRA, A. C. de; VASCONCELOS, M. J. V. de; PARENTONI, S. N.; KOCHIAN, L. V.; GUIMARAES, C. T.; MAGALHAES, J. V. |
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Afiliação: |
SYLVIA MORAIS DE SOUSA, CNPMS; ANTONIO CARLOS DE OLIVEIRA, CNPMS; MARIA JOSE VILACA DE VASCONCELOS, CNPMS; SIDNEY NETTO PARENTONI, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
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Título: |
A role for root morphology and related candidate genes in P acquisition efficiency in maize. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Functional Plant Biology, Victoria, v. 39, n. 11, p. 925-935, 2012. |
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DOI: |
10.1071/FP12022 |
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Idioma: |
Inglês |
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Conteúdo: |
Phosphorus (P) is an essential nutrient for plants and is acquired from the rhizosphere solution as inorganic phosphate. P is one of the least available mineral nutrients, particularly in highly weathered, tropical soils, and can substantially limit plant growth. The aim of this work was to study a possible effect of root morphology and the expression pattern of related candidate genes on P efficiency in maize. Our field phenotyping results under low and high P conditions enabled us to identify two contrasting genotypes for P acquisition efficiency that were used for the root traits studies. Root morphology was assessed in a paper pouch system to investigate root traits that could be involved in P acquisition efficiency. The genes, Rtcs, Bk2 and Rth3, which are known to be involved in root morphology, showed higher expression in the P efficient line relative to the P inefficient line. Overall, root traits showed high heritability and a low coefficient of variation. Principal component analysis revealed that out of the 24 root traits analysed, only four root traits were needed to adequately represent the diversity among genotypes. The information generated by this study will be useful for establishing early selection strategies for P efficiency in maize, which are needed to support subsequent molecular and physiological studies. |
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Thesagro: |
Milho; Zea Mays. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02106naa a2200253 a 4500
001 1929011
005 2017-09-28
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1071/FP12022$2DOI
100 1 $aSOUSA, S. M. de
245 $aA role for root morphology and related candidate genes in P acquisition efficiency in maize.$h[electronic resource]
260 $c2012
520 $aPhosphorus (P) is an essential nutrient for plants and is acquired from the rhizosphere solution as inorganic phosphate. P is one of the least available mineral nutrients, particularly in highly weathered, tropical soils, and can substantially limit plant growth. The aim of this work was to study a possible effect of root morphology and the expression pattern of related candidate genes on P efficiency in maize. Our field phenotyping results under low and high P conditions enabled us to identify two contrasting genotypes for P acquisition efficiency that were used for the root traits studies. Root morphology was assessed in a paper pouch system to investigate root traits that could be involved in P acquisition efficiency. The genes, Rtcs, Bk2 and Rth3, which are known to be involved in root morphology, showed higher expression in the P efficient line relative to the P inefficient line. Overall, root traits showed high heritability and a low coefficient of variation. Principal component analysis revealed that out of the 24 root traits analysed, only four root traits were needed to adequately represent the diversity among genotypes. The information generated by this study will be useful for establishing early selection strategies for P efficiency in maize, which are needed to support subsequent molecular and physiological studies.
650 $aMilho
650 $aZea Mays
700 1 $aCLARK, R. T.
700 1 $aMENDES, F. F.
700 1 $aOLIVEIRA, A. C. de
700 1 $aVASCONCELOS, M. J. V. de
700 1 $aPARENTONI, S. N.
700 1 $aKOCHIAN, L. V.
700 1 $aGUIMARAES, C. T.
700 1 $aMAGALHAES, J. V.
773 $tFunctional Plant Biology, Victoria$gv. 39, n. 11, p. 925-935, 2012.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
15/01/2024 |
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Data da última atualização: |
16/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BERNARDI, A. C. de C. |
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Afiliação: |
ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE. |
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Título: |
Nutrient use efficiency in agricultural systems: a brazilian perspective. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Fertilizer Focus, v. 41, n. 1, jan./feb. 2024. |
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Páginas: |
p. 52-53. |
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Idioma: |
Inglês |
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Conteúdo: |
Most Brazilian soils are deep, highly weathered, acidic, and of low natural fertility. Many strategies have been developed for building soil fertility using lime and mineral fertilizers, particularly phosphorus (P), potassium (K), and micronutrients to attain higher yields. Brazil currently uses 8% of all the fertilizer produced in the world. The country is fourth among the largest consumers, behind only China, India and the United States. However, there is a big problem: national production is minimal. More than 85% of nutrient sources are imported to meet agricultural demand. |
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Palavras-Chave: |
Enhanced efficiency fertilizers; ILPF; Integrated systems. |
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Thesaurus NAL: |
Fertilizers; Precision agriculture; Soil analysis. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160855/1/NutrientUseEfficiency.pdf
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Marc: |
LEADER 01184naa a2200205 a 4500
001 2160855
005 2024-01-16
008 2024 bl uuuu u00u1 u #d
100 1 $aBERNARDI, A. C. de C.
245 $aNutrient use efficiency in agricultural systems$ba brazilian perspective.$h[electronic resource]
260 $c2024
300 $ap. 52-53.
520 $aMost Brazilian soils are deep, highly weathered, acidic, and of low natural fertility. Many strategies have been developed for building soil fertility using lime and mineral fertilizers, particularly phosphorus (P), potassium (K), and micronutrients to attain higher yields. Brazil currently uses 8% of all the fertilizer produced in the world. The country is fourth among the largest consumers, behind only China, India and the United States. However, there is a big problem: national production is minimal. More than 85% of nutrient sources are imported to meet agricultural demand.
650 $aFertilizers
650 $aPrecision agriculture
650 $aSoil analysis
653 $aEnhanced efficiency fertilizers
653 $aILPF
653 $aIntegrated systems
773 $tFertilizer Focus$gv. 41, n. 1, jan./feb. 2024.
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