Data/hora: 04/06/2024 04:25:24

Biblioteca(s): 	Embrapa Unidades Centrais.	
Data corrente: 	04/06/1997	
Data da última atualização: 	05/08/2019	
Autoria: 	NEDEL, J. L.; ULLRICH, S.; PAN, W. L.	
Afiliação: 	JORGE LUIZ NEDEL, Universidade Federal de Pelotas - UFPel/Departamento de Fitotecnia; STEVEN EDWARD ULLRICH, Washington State University/Plant & Soil Department; WILLIAM LEE PAN, Washington State University/Plant & Soil Department.	
Título: 	Dry matter and nitrogen accumulation by standard height and semi-dwarf barley isotypes.	
Ano de publicação: 	1997	
Fonte/Imprenta: 	Pesquisa Agropecuária Brasileira, Brasília, DF, v. 32, n. 2, p. 155-164, fev. 1997.	
Idioma: 	Inglês	
Notas: 	Título em português: Acúmulo de matéria seca e de nitrogênio por genótipos de cevada com altura normal e reduzida.	
Conteúdo: 	To assess nitrogen movement from the soil into the plant and within the plant, studies of dry matter and N accumulation are necessary. The objective of this experiment was to study the effect of 30, 60, 90 and 120 lcg of N/ha on dry matter and N accumulation by four standard height-semi-dwarf normal mutant malting barley isotype pairs (Morex, ilazen, Norbert, Andre) and two check éultivars: Steptoe and Klages. Considerable differences among genotypes on dry matter accumulation until anthesis and dry matter lóst during grain fihling period were observed. Genotypic difíerences for pre-anthesis (range: 36.6 to 52.9 mg N/plant) and post-anthesis (range: -2.3 to 10.8 mg N/plant) N accumulation and in total N accumulation (range: 69 to 149.2 mg N/plant in 1987 and 41.3 to 56.5 mg N/ha in 1989) were observed. Within the isotype pairs, consistent differences were detected for post-anthesis and total N accumulation both favoring the standard isotypes. These differences were not affected by fertilizer N leveis. Genotypic dilferences in N remobilization into the grain were also observed. Relationship between N and dry matter partitioning are discussed.	
Palavras-Chave: 	Nitrogen response; Protein; Resposta ao nitrogenio.	
Thesagro: 	Hordeum Vulgare; Proteína.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/92300/1/pab28595.pdf	
Registro original: 	Embrapa Unidades Centrais (AI-SEDE)	
Exemplares: 	AI-SEDE - (5722-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS