Data/hora: 04/06/2024 00:58:18

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Rhizobium strains competitiveness on bean nodulation in Cerrado soils	
Autores: 	Raposeiras,Ruy; Marriel,Ivanildo Evódio; Muzzi,Maria Rita Scotti; Paiva,Edilson; Pereira Filho,Israel Alexandre; Carvalhais,Lilia Costa; Passos,Raul Vinícius Magalhães; Pinto,Patrícia Pereira; Sá,Nadja Maria Horta de.	
Data: 	2006-03-01	
Ano: 	2006	
Palavras-chave: 	Phaseolus vulgaris; Nodule occupancy; Elisa; RAPD.	
Resumo: 	The objective of this work was to identify the most competitive and effective Rhizobium strains in order to increase common bean yield by nitrogen fixation as alternative or complementation to the nitrogen fertilization. Competitiveness tests were lead in axenic conditions, in Cerrado soil pots and in three field experiments, with native Rhizobium strains that were previously identified, according to their effectiveness and genetic variability. The identification of strains in nodules was performed using serological tests (axenic conditions) - agglutination and enzyme linked immunosorbent (Elisa) assays - and random amplified polymorfic DNA (RAPD) (Cerrado soil). Plant yield was determined using the dry weight (greenhouse conditions), total N and grain yield (field experiments). Among the analyzed Rhizobium strains, native strain SLA 2.2 and commercial strain CIAT 899 were the dominant nodules in plants of the most productive plots, presenting yield productivity similar or higher to those obtained in treatments where 20 kg ha-1 of N were applied.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000300010	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2006000300010	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.41 n.3 2006	
Fonte: 	info:eu-repo/semantics/openAccess