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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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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
31/10/1994 |
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Data da última atualização: |
19/06/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; WRIGHT, R. J.; BALIGAR, V. C. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF. |
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Título: |
Rice cultivars evaluation for phosphorus use efficiency. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
Plant and Soil, Dordrecht, v.111, p.105-109, 1988. |
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DOI: |
https://doi.org/10.1007/BF02182043 |
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Idioma: |
Inglês |
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Conteúdo: |
Phosphorus deficiency is one of the most growth-limiting factors in acid soils in various parts of the world. The objective of this study was to screen 25 rice cultivars (Oryza sativa L.) at low, medium, and high levels of soil P. Number of tillers, root length, plant height, root dry weight and shoot dry weight were related to tissue P concentrations, P uptake and P-use efficiency. Shoot weight was found to be the plant parameter most sensitive to P deficiency. Significant cultivar differences in P use efficiency were found. Phosphorus use efficiency was higher in roots than shoots and decreased with increasing levels of soil P. Positive correlations were found among growth parameters such as plant height, tillers, root and shoot weight, and P content of roots and shoots. These results indicate selection of rice cultivars for satisfactory performance under low P availability can be carried out using shoot and root dry weight as criteria. |
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Thesagro: |
Arroz; Fósforo; Oryza Sativa. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01476naa a2200193 a 4500
001 1197869
005 2020-06-19
008 1988 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/BF02182043$2DOI
100 1 $aFAGERIA, N. K.
245 $aRice cultivars evaluation for phosphorus use efficiency.
260 $c1988
520 $aPhosphorus deficiency is one of the most growth-limiting factors in acid soils in various parts of the world. The objective of this study was to screen 25 rice cultivars (Oryza sativa L.) at low, medium, and high levels of soil P. Number of tillers, root length, plant height, root dry weight and shoot dry weight were related to tissue P concentrations, P uptake and P-use efficiency. Shoot weight was found to be the plant parameter most sensitive to P deficiency. Significant cultivar differences in P use efficiency were found. Phosphorus use efficiency was higher in roots than shoots and decreased with increasing levels of soil P. Positive correlations were found among growth parameters such as plant height, tillers, root and shoot weight, and P content of roots and shoots. These results indicate selection of rice cultivars for satisfactory performance under low P availability can be carried out using shoot and root dry weight as criteria.
650 $aArroz
650 $aFósforo
650 $aOryza Sativa
700 1 $aWRIGHT, R. J.
700 1 $aBALIGAR, V. C.
773 $tPlant and Soil, Dordrecht$gv.111, p.105-109, 1988.
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Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | CUNHA, N. G. da; SILVEIRA, R. da C.; KOESTER, E.; OLIVEIRA, L. D. de; FILIPPINI ALBA, J. M.; TERRES, V. C.; LOPES, R. T. Estudo de Solos do Município de Erval Seco, RS. Pelotas: Embrapa Clima Temperado, 2011. 32 p. (Embrapa Clima Temperado. Circular Técnica, 111).| Biblioteca(s): Embrapa Clima Temperado. |
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| 2. | | CUNHA, N. G. da; SILVEIRA, R. da C.; KOESTER, E.; OLIVEIRA, L. D. de; FILIPPINI ALBA, J. M.; TERRES, V. C.; LOPES, R. T. Estudos de Solos do Município de Frederico Westphalen, RS. Pelotas: Embrapa Clima Temperado, 2011. 32 p. (Embrapa Clima Temperado. Circular técnica, 116).| Biblioteca(s): Embrapa Clima Temperado. |
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