Data/hora: 10/06/2024 07:50:33

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 04/06/1997
Data da última atualização: | 05/08/2019
Autoria: | NEDEL, J. L.; ULLRICH, S. E.; PAN, W. L.
Afiliação: | JORGE LUIZ NEDEL, Universidade Federal de Pelotas - UFPel/ Faculdade de Agronomia/Departamento Fitotecnia; STEVEN EDWARD ULLRICH, Washington State Universit/Plant & Sou Department; WILLIAM LEE PAN, Washington State Universit/Plant & Sou Department.
Título: | Nitrogen use by standard height and semi-dwarf isotypes.
Ano de publicação: | 1997
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 32, n. 2, p. 147-152, fev. 1997.
Idioma: | Inglês
Notas: | Título em português: Eficiência no uso de nitrogênio de genótipos de cevada de altura normal e semi-anã.
Conteúdo: | Considering that a substantial amount ofN applied in cereal production may be lost by leaching or erosion, the development of cultivars with increased efuiciency to utilize N and more efficient N management practices are desirable. The objective of this experiment was to study the effect of 30, 60, 90 and 120kg of NJha on N use by four standard height semi-dwarf normal-mutant malting barley isotype pairs (Morex, Hazen, Norbert, Andre). Genotypic differences in N remobilization in the grain, remobilization efficiency, utilization efficiency and uptake efficiency and N use ciiiciency were observed. The standard isotypes with few exceptions had higher values for ali of these N traits. Nitrogen remobilization in the grain increased with increasing N fertilization while N titilization and N use efficiency decreased in both standard and semi-dwarf isotypes. Nitrogen use and grain yield relations are discussed.
Palavras-Chave: | Nitrogen efficiency; Nitrogen remobilization; Remobilizacao de nitrogenio.
Thesagro: | Hordeum Vulgare.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/10159/1/pabFEV3.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (10159-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS