| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Arroz e Feijão. |
|
Data corrente: |
09/03/2004 |
|
Data da última atualização: |
04/05/2022 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
FAGERIA, N. K.; BALIGAR, V. C. |
|
Afiliação: |
NAND KUMAR FAGERIA, CNPAF; V. C. BALIGAR, USDA. |
|
Título: |
Methodology for evaluation of lowland rice genotypes for nitrogen use efficiency. |
|
Ano de publicação: |
2003 |
|
Fonte/Imprenta: |
Journal of Plant Nutrition, v. 26, n. 6, p. 1315-1333, June 2003. |
|
DOI: |
https://doi.org/10.1081/PLN-120020373 |
|
Idioma: |
Inglês |
|
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. |
|
Palavras-Chave: |
Nutrient use efficiency mechanisms; Screening for N efficiency. |
|
Thesagro: |
Arroz; Genótipo; Nitrogênio; Oryza Sativa. |
|
Thesaurus Nal: |
grain yield; rice. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
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.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 99 | |
| 5. |  | FAGERIA, N. K.; BALIGAR, V. C. Dry bean genotypes evaluation for phosphorus use efficiency. In: JOINT ANNUAL METTING OF THE GEOLOGICAL SOCIETY OF AMERICA, SOIL SCIENCE SOCIETY OF AMERICA, AMERICAN SOCIETY OF AGRONOMY, CROP SCIENCE SOCIETY OF AMERICA, GULF COAST ASSOCIATION OF GEOLOGICAL, 2008, Houston. Celebrating the international year of planet earth: abstracts with programs. Austin: The University of Texas, 2008. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
|   |
| 14. | | FAGERIA, N. K.; BALIGAR, V. C. Growth and nutrient concentrations of common bean, lowland rice, corn, soybean, and wheat at different soil pH on and inceptisol. Journal of Plant Nutrition, v. 22, n. 9, p. 1495-1507, 1999.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Arroz e Feijão. |
|  |
| Registros recuperados : 99 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
