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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
10/03/2009 |
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Data da última atualização: |
23/05/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MARTINS, A. O.; CAMPOSTRINI, E.; MAGALHAES, P. C.; GUIMARAES, L. J. M.; DURAES, F. O. M.; MARRIEL, I. E.; NETTO, A. T. |
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Afiliação: |
Amanda Oliveira Martins, UENF; Eliemar Campostrini, UENF; PAULO CESAR MAGALHAES, CNPMS; LAURO JOSE MOREIRA GUIMARAES, CNPMS; Frederico Ozanan Machado Durães, Embrapa Milho e Sorgo; IVANILDO EVODIO MARRIEL, CNPMS; Alena Torres Netto, UENF. |
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Título: |
Nitrogen-use efficiency of maize genotypes in contrasting environments. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 8, n. 4, p. 291-298, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
The purpose ofthis study was to evaluate the nitrogen-use efficiency of 15 corn hybrids in different environments. The experiment was conducted at the research station Embrapa Milho e Sorgo, in environments with low (12 kg ha-l) and high (120 kg ha-J) nitrogen fertilization, in a randomized block design with three replications. The chlorophyll content, leaf nitrogen and nitrate reductase activity in the flag leaf were determined at flowering and the grain yield was evaluated at harvest. The chlorophyll content proved to be sensitive to nitrogen availability, although without discriminating genotypic differences efficiently. To use nitrate reductasefor this purposeJurther studies are needed on the reliability ofthis biochemical variable to diagnose genotypes efficient in N use precociously. The hybrid L2xL3 was considered promising for maize breeding programs aimed at gene introgression related to N-use efficiency. |
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Palavras-Chave: |
Chlorophyll content; Leafnitrogen; Yield. |
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Thesagro: |
Zea Mays. |
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Thesaurus Nal: |
nitrogen. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66413/1/Nitrogen-use.pdf
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Marc: |
LEADER 01657naa a2200253 a 4500
001 1491822
005 2018-05-23
008 2008 bl uuuu u00u1 u #d
100 1 $aMARTINS, A. O.
245 $aNitrogen-use efficiency of maize genotypes in contrasting environments.$h[electronic resource]
260 $c2008
520 $aThe purpose ofthis study was to evaluate the nitrogen-use efficiency of 15 corn hybrids in different environments. The experiment was conducted at the research station Embrapa Milho e Sorgo, in environments with low (12 kg ha-l) and high (120 kg ha-J) nitrogen fertilization, in a randomized block design with three replications. The chlorophyll content, leaf nitrogen and nitrate reductase activity in the flag leaf were determined at flowering and the grain yield was evaluated at harvest. The chlorophyll content proved to be sensitive to nitrogen availability, although without discriminating genotypic differences efficiently. To use nitrate reductasefor this purposeJurther studies are needed on the reliability ofthis biochemical variable to diagnose genotypes efficient in N use precociously. The hybrid L2xL3 was considered promising for maize breeding programs aimed at gene introgression related to N-use efficiency.
650 $anitrogen
650 $aZea Mays
653 $aChlorophyll content
653 $aLeafnitrogen
653 $aYield
700 1 $aCAMPOSTRINI, E.
700 1 $aMAGALHAES, P. C.
700 1 $aGUIMARAES, L. J. M.
700 1 $aDURAES, F. O. M.
700 1 $aMARRIEL, I. E.
700 1 $aNETTO, A. T.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 8, n. 4, p. 291-298, 2008.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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