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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
26/11/2015 |
Data da última atualização: |
19/02/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FAGERIA, N. K.; CARVALHO, M. C. S.; SANTOS, F. C. dos. |
Afiliação: |
NAND KUMAR FAGERIA, CNPAF; MARIA DA CONCEICAO SANTANA CARVALHO, CNPAF; FLAVIA CRISTINA DOS SANTOS, CNPMS. |
Título: |
Response of upland rice genotypes to nitrogen fertilization. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Communications in Soil Science and Plant Analysis, New York, v. 45, n. 15, p. 2058-2066, 2014. |
DOI: |
10.1080/00103624.2014.911301 |
Idioma: |
Português |
Conteúdo: |
Nitrogen (N) is one of the most yield-limiting nutrients for upland rice production in Brazilian Oxisol soils. A field experiment was conducted for two consecutive years at the National Rice and Bean Research Centers Experimental Station Capivara with the objective to evaluate 10 promising genotypes of upland rice for N-use efficiency. The N rates used were 0 kg ha-1 (low) and 100 kg ha-1 (high). Plant height, shoot dry weight, grain yield, panicle number, and 1000-grain weight were significantly influenced by N and genotype treatments. Nitrogen × genotype interactions were not significant for most of the growth, yield, and yield components, indicating that differences among genotypes were consistent across N rates. Based on grain yield efficiency index (GYEI), genotypes were classified as N efficient or inefficient. Among 10 genotypes, four genotypes were efficient and six were moderately efficient in N use in the first year. In the second year, three genotypes were efficient and seven were moderately efficient in N use. Genotype BRA 052015 was classified as efficient in N use in both the years. Grain harvest index and GYEI had significant linear relationships with grain yield. |
Thesagro: |
Arroz; Fertilizante nitrogenado; Genótipo; Nitrogênio; Oryza sativa; Rendimento. |
Thesaurus Nal: |
Grain yield; Rice; Yield components. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 01974naa a2200265 a 4500 001 2029601 005 2019-02-19 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1080/00103624.2014.911301$2DOI 100 1 $aFAGERIA, N. K. 245 $aResponse of upland rice genotypes to nitrogen fertilization.$h[electronic resource] 260 $c2014 520 $aNitrogen (N) is one of the most yield-limiting nutrients for upland rice production in Brazilian Oxisol soils. A field experiment was conducted for two consecutive years at the National Rice and Bean Research Centers Experimental Station Capivara with the objective to evaluate 10 promising genotypes of upland rice for N-use efficiency. The N rates used were 0 kg ha-1 (low) and 100 kg ha-1 (high). Plant height, shoot dry weight, grain yield, panicle number, and 1000-grain weight were significantly influenced by N and genotype treatments. Nitrogen × genotype interactions were not significant for most of the growth, yield, and yield components, indicating that differences among genotypes were consistent across N rates. Based on grain yield efficiency index (GYEI), genotypes were classified as N efficient or inefficient. Among 10 genotypes, four genotypes were efficient and six were moderately efficient in N use in the first year. In the second year, three genotypes were efficient and seven were moderately efficient in N use. Genotype BRA 052015 was classified as efficient in N use in both the years. Grain harvest index and GYEI had significant linear relationships with grain yield. 650 $aGrain yield 650 $aRice 650 $aYield components 650 $aArroz 650 $aFertilizante nitrogenado 650 $aGenótipo 650 $aNitrogênio 650 $aOryza sativa 650 $aRendimento 700 1 $aCARVALHO, M. C. S. 700 1 $aSANTOS, F. C. dos 773 $tCommunications in Soil Science and Plant Analysis, New York$gv. 45, n. 15, p. 2058-2066, 2014.
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1. | | MADARI, B. E.; MAGGIOTTO, S. R.; BERBARA, R. L. L.; STONE, L. F.; MEDEIROS, J. C.; LISBOA, F. J. G.; OLIVEIRA, J. M.; CORRÊA, R. S.; LIMA, M. L.; SILVEIRA, A. L. R.; ASSIS, P. C. R.; MACHADO, P. L. O. de A.; MORALES, M. M.; WRUCK, F. J.; CARVALHO, M. T. de M. Integrated crop-livestock-forestry systems as potential carbon sinks. In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015. Resumo.Tipo: Resumo em Anais de Congresso |
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