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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: |
09/03/2004 |
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Data da última atualização: |
04/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FAGERIA, N. K.; BALIGAR, V. C. |
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Afiliação: |
NAND KUMAR FAGERIA, CNPAF; V. C. BALIGAR, USDA. |
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Título: |
Methodology for evaluation of lowland rice genotypes for nitrogen use efficiency. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 26, n. 6, p. 1315-1333, June 2003. |
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DOI: |
https://doi.org/10.1081/PLN-120020373 |
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Idioma: |
Inglês |
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Conteúdo: |
Rice is a staple food for more than 50% of the world's population. Based on land and water management practices, rice ecosystem is mainly divided into lowland, upland, and deep water or floating rice. However, major area and production at global level comes from lowland or flooded rice system. In rice growing regions nitrogen (N) is one of the most yield-limiting nutrients for rice production. Adaptation of cultivars or genotypes with high N use efficiency is a potential strategy in optimizing N requirements of crops, lowering the cost of production and reducing the environmental pollution. The objectives of this paper are to discuss rate and timing of N application, define N?use efficiency, discuss mechanisms involved for genotypic variation in N?use efficiency and present experimental evidence of genotypic variations in N-use efficiency in lowland rice. Evaluation methodology and criteria for screening N-use efficiency are also discussed. Significant variation in N use efficiency exists in lowland rice genotypes. Nitrogen use efficiency parameters (grain yield per unit of N uptake, grain yield per unit of N applied and recovery of applied N) are useful in differentiating lowland rice genotypes into efficient and non?efficient responders to applied N. Such an evaluation could assist in identification of elite genotypes that could be used in breeding program to produce cultivars with high N use efficiency and capable of producing high yields. |
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Palavras-Chave: |
Nutrient use efficiency mechanisms; Screening for N efficiency. |
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Thesagro: |
Arroz; Genótipo; Nitrogênio; Oryza Sativa. |
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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 02198naa a2200241 a 4500
001 1211938
005 2022-05-04
008 2003 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1081/PLN-120020373$2DOI
100 1 $aFAGERIA, N. K.
245 $aMethodology for evaluation of lowland rice genotypes for nitrogen use efficiency.$h[electronic resource]
260 $c2003
520 $aRice is a staple food for more than 50% of the world's population. Based on land and water management practices, rice ecosystem is mainly divided into lowland, upland, and deep water or floating rice. However, major area and production at global level comes from lowland or flooded rice system. In rice growing regions nitrogen (N) is one of the most yield-limiting nutrients for rice production. Adaptation of cultivars or genotypes with high N use efficiency is a potential strategy in optimizing N requirements of crops, lowering the cost of production and reducing the environmental pollution. The objectives of this paper are to discuss rate and timing of N application, define N?use efficiency, discuss mechanisms involved for genotypic variation in N?use efficiency and present experimental evidence of genotypic variations in N-use efficiency in lowland rice. Evaluation methodology and criteria for screening N-use efficiency are also discussed. Significant variation in N use efficiency exists in lowland rice genotypes. Nitrogen use efficiency parameters (grain yield per unit of N uptake, grain yield per unit of N applied and recovery of applied N) are useful in differentiating lowland rice genotypes into efficient and non?efficient responders to applied N. Such an evaluation could assist in identification of elite genotypes that could be used in breeding program to produce cultivars with high N use efficiency and capable of producing high yields.
650 $agrain yield
650 $arice
650 $aArroz
650 $aGenótipo
650 $aNitrogênio
650 $aOryza Sativa
653 $aNutrient use efficiency mechanisms
653 $aScreening for N efficiency
700 1 $aBALIGAR, V. C.
773 $tJournal of Plant Nutrition$gv. 26, n. 6, p. 1315-1333, June 2003.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
21/02/2019 |
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Data da última atualização: |
12/03/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CORREA, A. J. M.; OLIVEIRA, F. R. de A.; ARAÚJO, M. E. B. de; PEREIRA, A. E. Z. de O.; FREITAS, M. L. M.; AGUIAR, A. V. de. |
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Afiliação: |
Aparecida Juliana Martins Correa, UFSCAR; Francisco Rafael de Araújo Oliveira, UFSCAR; Marcel Eméric Bizerra de Araújo, UNESP; Aline Estela Zini de Oliveira Pereira, UNESP; Miguel Luiz Menezes Freitas, Instituto Florestal; ANANDA VIRGINIA DE AGUIAR, CNPF. |
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Título: |
Caracterização da variabilidade genética em progênies de segunda geração de Pinus maximinoi H.E. Moore. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista RG News, v. 4, n. 3, p. 513, 2018. Edição especial dos Anais do 5º Congresso Brasileiro de Recursos Genéticos, Fortaleza, nov. 2018. |
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Idioma: |
Português |
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Palavras-Chave: |
Pinus maximinoi; Variabilidade genética. |
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Thesagro: |
Pomar; Semente. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/193200/1/2018-RAC-Ananda-CBRG-CaracterizacaoPinus.pdf
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Marc: |
LEADER 00771nam a2200205 a 4500
001 2106335
005 2019-03-12
008 2018 bl uuuu u00u1 u #d
100 1 $aCORREA, A. J. M.
245 $aCaracterização da variabilidade genética em progênies de segunda geração de Pinus maximinoi H.E. Moore.$h[electronic resource]
260 $aRevista RG News, v. 4, n. 3, p. 513, 2018. Edição especial dos Anais do 5º Congresso Brasileiro de Recursos Genéticos, Fortaleza, nov. 2018.$c2018
650 $aPomar
650 $aSemente
653 $aPinus maximinoi
653 $aVariabilidade genética
700 1 $aOLIVEIRA, F. R. de A.
700 1 $aARAÚJO, M. E. B. de
700 1 $aPEREIRA, A. E. Z. de O.
700 1 $aFREITAS, M. L. M.
700 1 $aAGUIAR, A. V. de
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