Data/hora: 19/06/2024 13:09:20

Biblioteca(s): 	Embrapa Agrossilvipastoril.	
Tipo da produção científica: 	Artigo em Periódico Indexado	
Circulação/Nível: 	B - 1	
Data corrente: 	18/12/2014	
Data da última atualização: 	31/05/2017	
Autoria: 	MARTINS, L. E. C.; MONTEIRO, F. A.; PEDREIRA, B. C. e.	
Afiliação: 	BRUNO CARNEIRO E PEDREIRA, CPAMT.	
Título: 	Metabolic change, tillering And root system of brachiaria Brizantha in response to Phosphorus and zinc nutrition.	
Ano de publicação: 	2014	
Fonte/Imprenta: 	Journal of Plant Nutrition, London, v. 37, n. 4, p. 509-519, fev. 2014	
ISSN: 	0190-4167	
DOI: 	10.1080/01904167.2013.867979	
Idioma: 	Inglês	
Conteúdo: 	Phosphorus (P) and zinc (Zn) availabilities are important to the nutrition of tropical forage grasses. In this manner, this study aimed to identify and quantify changes in metabolism, tillering, and root system of Brachiaria brizanthacv. ?Marandu? related to P and Zn availabilities. Plants of B. brizanthacv. ?Marandu? were grown in nutrient solution under five rates of P (0.1, 0.6, 1.1, 1.6, and 2.1 mmol L&#8722;1) and five rates of Zn (0.00, 0.75, 1.5, 2.25, and 3.00&#956;mol L &#8722;1 ), in a fractionated factorial. The interaction Px Zn rates and the Zn supply were not significant for the activity of acid phosphatase enzyme, P-use index, number of tillers, and root parameters. P-use index and enzyme activity decreased as P availability increased. The high efficiency in P use was a result of high acid phosphatase activity and P supply was essential to the development of ?Marandu? palisadegrass root system.	
Palavras-Chave: 	Enzyme; Root length.	
Thesagro: 	Enzima; Fosfatase ácida; Fósforo.	
Thesaurus Nal: 	Acid phosphatase; Phosphorus.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Agrossilvipastoril (CPAMT)	
Exemplares: 	CPAMT - (241-1) - UPC - AP - DD -  -  -  - DIS