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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
07/10/1994 |
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Data da última atualização: |
18/06/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; RABELO, N. A. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; NILVA ABADIA RABELO, CNPAF. |
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Título: |
Tolerance of rice cultivars to iron toxicity. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 10, n. 6, p. 653-661, 1987. |
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DOI: |
https://doi.org/10.1080/01904168709363598 |
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Idioma: |
Inglês |
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Conteúdo: |
Iron toxicity i s an important growth-limiting factor for flooded rice production in various parts of the world, including Brazil. Data related to the reaction of rice cultivars to iron concentrations are limited, especially for large numbers of cultivars. Forty rice cultivars were grown in a greenhouse in nutrient solutions containing 0.09, 0.89, and 1.78 mM Fe (5, 50 and 100 ppm Fe). The e f f e c t s of excess iron were measured on plant height, root length, and root and shoot dry weight. Root and shoot dry weight were found to be more sensitive to excess iron concentration. Based on dry matter yield, reduction of shoots at higher Fe concentrations compared to the optimum or control treatment, rice cultivars were classified as tolerant, moderately tolerant, moderately susceptible or susceptible. The effect of Fe concentrations on concentrations and contents of other nutrient was also investigated. Higher concentration of Fe in the nutrient solution exerted an inhibiting effect on the concentrations and contents of almost all macro and micronutrients. |
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Thesagro: |
Arroz; Composição química; Ferro; Oryza sativa; Toxidez. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01648naa a2200205 a 4500
001 1197269
005 2025-06-18
008 1987 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/01904168709363598$2DOI
100 1 $aFAGERIA, N. K.
245 $aTolerance of rice cultivars to iron toxicity.$h[electronic resource]
260 $c1987
520 $aIron toxicity i s an important growth-limiting factor for flooded rice production in various parts of the world, including Brazil. Data related to the reaction of rice cultivars to iron concentrations are limited, especially for large numbers of cultivars. Forty rice cultivars were grown in a greenhouse in nutrient solutions containing 0.09, 0.89, and 1.78 mM Fe (5, 50 and 100 ppm Fe). The e f f e c t s of excess iron were measured on plant height, root length, and root and shoot dry weight. Root and shoot dry weight were found to be more sensitive to excess iron concentration. Based on dry matter yield, reduction of shoots at higher Fe concentrations compared to the optimum or control treatment, rice cultivars were classified as tolerant, moderately tolerant, moderately susceptible or susceptible. The effect of Fe concentrations on concentrations and contents of other nutrient was also investigated. Higher concentration of Fe in the nutrient solution exerted an inhibiting effect on the concentrations and contents of almost all macro and micronutrients.
650 $aArroz
650 $aComposição química
650 $aFerro
650 $aOryza sativa
650 $aToxidez
700 1 $aRABELO, N. A.
773 $tJournal of Plant Nutrition$gv. 10, n. 6, p. 653-661, 1987.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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