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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 Arroz e Feijão; Embrapa Milho e Sorgo. |
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Data corrente: |
27/03/2014 |
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Data da última atualização: |
26/05/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; MORAIS, O. P. de; SANTOS, A. B. dos; VASCONCELOS, M. J. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; ORLANDO PEIXOTO DE MORAIS, CNPAF; ALBERTO BAETA DOS SANTOS, CNPAF; MARIA JOSE VILACA DE VASCONCELOS, CNPMS. |
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Título: |
Phosphorus use efficiency in upland rice genotypes under field conditions. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, New York, v. 37, n. 5, p. 633-642, Apr. 2014. |
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DOI: |
10.1080/01904167.2013.867977 |
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Idioma: |
Inglês |
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Conteúdo: |
Phosphorus (P) deficiency is one of the most yield limiting factors for crop production in South American soils. Upland rice (Oryza sativa L.) is an important crop in South American cropping systems, including Brazil. A field experiment was conducted with the objective to evaluate 20 upland rice genotypes for phosphorus (P) use efficiency. The P rate used was low (0 kg P ha−1) and high [87 kg P ha−1 or 200 kg phosphorus pentoxide (P2O5) ha−1]. Plant height, shoot dry weight, grain yield, panicle number, 1000 grain weight, spikelet sterility, and grain harvest index were significantly influenced by P and genotype treatments. The P X genotype interaction was significant for grain yield, indicating that genotypes responded differently under two P rates. Overall, grain yield increased by 12% with the addition of P fertilization. Based on grain yield efficiency index, genotypes were classified into efficient, moderately efficient, and inefficient group. The genotypes that were classified as efficient in P use were BRA032048, BRA042094, BRA02601, BRA032051, BRA032033, BRA052015, BRA042156, BRA01600, BRA01506, BRA052023 and BRA042160. The inefficient genotypes in P us efficiency were BRS Primavera, BRA052045, BRA01596, and BRS Sertaneja. Grain harvest index had a significant positive association with grain yield and spikelet sterility had a significant negative association with grain yield, as expected. Average, P-use efficiency of five genotypes was about 17 kg kg−1 (kg grain yield per kg P applied). MenosPhosphorus (P) deficiency is one of the most yield limiting factors for crop production in South American soils. Upland rice (Oryza sativa L.) is an important crop in South American cropping systems, including Brazil. A field experiment was conducted with the objective to evaluate 20 upland rice genotypes for phosphorus (P) use efficiency. The P rate used was low (0 kg P ha−1) and high [87 kg P ha−1 or 200 kg phosphorus pentoxide (P2O5) ha−1]. Plant height, shoot dry weight, grain yield, panicle number, 1000 grain weight, spikelet sterility, and grain harvest index were significantly influenced by P and genotype treatments. The P X genotype interaction was significant for grain yield, indicating that genotypes responded differently under two P rates. Overall, grain yield increased by 12% with the addition of P fertilization. Based on grain yield efficiency index, genotypes were classified into efficient, moderately efficient, and inefficient group. The genotypes that were classified as efficient in P use were BRA032048, BRA042094, BRA02601, BRA032051, BRA032033, BRA052015, BRA042156, BRA01600, BRA01506, BRA052023 and BRA042160. The inefficient genotypes in P us efficiency were BRS Primavera, BRA052045, BRA01596, and BRS Sertaneja. Grain harvest index had a significant positive association with grain yield and spikelet sterility had a significant negative association with grain yield, as expected. Average, P-use efficiency of five genotypes was about 17 kg k... Mostrar Tudo |
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Thesagro: |
Arroz; Fósforo; Genótipo; Nutriente; Oryza sativa. |
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Thesaurus Nal: |
Grain yield; Harvest index; Nutrient use efficiency; Oxisols; Phosphorus; Rice. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02388naa a2200301 a 4500
001 1983446
005 2014-05-26
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1080/01904167.2013.867977$2DOI
100 1 $aFAGERIA, N. K.
245 $aPhosphorus use efficiency in upland rice genotypes under field conditions.$h[electronic resource]
260 $c2014
520 $aPhosphorus (P) deficiency is one of the most yield limiting factors for crop production in South American soils. Upland rice (Oryza sativa L.) is an important crop in South American cropping systems, including Brazil. A field experiment was conducted with the objective to evaluate 20 upland rice genotypes for phosphorus (P) use efficiency. The P rate used was low (0 kg P ha−1) and high [87 kg P ha−1 or 200 kg phosphorus pentoxide (P2O5) ha−1]. Plant height, shoot dry weight, grain yield, panicle number, 1000 grain weight, spikelet sterility, and grain harvest index were significantly influenced by P and genotype treatments. The P X genotype interaction was significant for grain yield, indicating that genotypes responded differently under two P rates. Overall, grain yield increased by 12% with the addition of P fertilization. Based on grain yield efficiency index, genotypes were classified into efficient, moderately efficient, and inefficient group. The genotypes that were classified as efficient in P use were BRA032048, BRA042094, BRA02601, BRA032051, BRA032033, BRA052015, BRA042156, BRA01600, BRA01506, BRA052023 and BRA042160. The inefficient genotypes in P us efficiency were BRS Primavera, BRA052045, BRA01596, and BRS Sertaneja. Grain harvest index had a significant positive association with grain yield and spikelet sterility had a significant negative association with grain yield, as expected. Average, P-use efficiency of five genotypes was about 17 kg kg−1 (kg grain yield per kg P applied).
650 $aGrain yield
650 $aHarvest index
650 $aNutrient use efficiency
650 $aOxisols
650 $aPhosphorus
650 $aRice
650 $aArroz
650 $aFósforo
650 $aGenótipo
650 $aNutriente
650 $aOryza sativa
700 1 $aMORAIS, O. P. de
700 1 $aSANTOS, A. B. dos
700 1 $aVASCONCELOS, M. J.
773 $tJournal of Plant Nutrition, New York$gv. 37, n. 5, p. 633-642, Apr. 2014.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
08/04/2024 |
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Data da última atualização: |
08/04/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
COSTA, J. R. da; MITJA, D.; FONTES, J. R. A. |
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Afiliação: |
JOANNE REGIS DA COSTA, CPAA; DANIELLE MITJA; JOSE ROBERTO ANTONIOL FONTES, CPAA. |
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Título: |
Bancos de sementes de plantas daninhas em cultivos de mandioca na Amazônia central. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: REUNIÃO ANUAL DA SBPC, 61., 2009, Manaus. Anais / resumos... Manaus: SBPC, 2009. |
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Idioma: |
Português |
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Conteúdo: |
O objetivo deste trabalho foi estimar o banco de sementes de espécies daninhas em áreas cultivadas com mandioca (Manihot esculenta), em pequenas propriedades agrícolas localizadas na zona rural de Manacapuru-AM. |
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Palavras-Chave: |
Sementes no solo. |
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Thesagro: |
Erva Daninha. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1163377/1/sbpcnet.org.br-livro-61ra-resumos-resumos-5132.htm.pdf
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Marc: |
LEADER 00731nam a2200157 a 4500
001 2163377
005 2024-04-08
008 2009 bl uuuu u00u1 u #d
100 1 $aCOSTA, J. R. da
245 $aBancos de sementes de plantas daninhas em cultivos de mandioca na Amazônia central.$h[electronic resource]
260 $aIn: REUNIÃO ANUAL DA SBPC, 61., 2009, Manaus. Anais / resumos... Manaus: SBPC$c2009
520 $aO objetivo deste trabalho foi estimar o banco de sementes de espécies daninhas em áreas cultivadas com mandioca (Manihot esculenta), em pequenas propriedades agrícolas localizadas na zona rural de Manacapuru-AM.
650 $aErva Daninha
653 $aSementes no solo
700 1 $aMITJA, D.
700 1 $aFONTES, J. R. A.
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Embrapa Amazônia Ocidental (CPAA) |
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