Data/hora: 22/09/2024 17:56:08

Biblioteca(s): 	Embrapa Cerrados.	
Data corrente: 	30/03/1999	
Data da última atualização: 	30/03/1999	
Autoria: 	NISHI, C. Y. M.; BODDEY, L. H.; VARGAS, M. A. T.; HUNGRIA, M.	
Título: 	Morphological, physiological and genetic characterization of two new Bradyrhizobium strains recently recommended as Brasilian commercial inoculants for soybean.	
Ano de publicação: 	1996	
Fonte/Imprenta: 	Symbiosis, Rehovot, Israel, v.20, p.147-162, 1996.	
Idioma: 	Inglês	
Conteúdo: 	Large scale soybean inoculantion in Brazil started in 1960 and, since the, several strains from other countries were introduced into the Brazilian soils. Since 1992, two new strains have been used as Brazilian inoculants, CPAC 7 and CPAC 15, which are natural variants of CB1809 (received from Australia in 1966) and SEMIA 566 (isolated from a North American inoculant in 1966), respectively, and were obtained in a selection program for higher efficiency of N2 fixation and competitiveness. Analyses of morphological and physiological parameters, particularly the ones that differentiate the species B. japonicum and B. elkanii, indicated that CB 1809 and the variant CPAC 7 show the characteristics of B. japonicum, while SEMIA 566 and CPAC 15 fit into the species B. elkanii. Differences between parental and variant strains included also several profiles in RAPD analysis. Increases in nodulation, nodule occupancy and yield due to inoculation were observed even in a soil containing 2.2 X 105 cells/g of soil. 	
Palavras-Chave: 	Brasil; Inoculants.	
Thesagro: 	Bradyrhizobium Japonicum; Cerrado; Fisiologia Vegetal; Genética Vegetal; Glycine Max; Inoculante; Morfologia Vegetal; Soja.	
Thesaurus Nal: 	Bradyrhizobium elkanii; Brazil; genetics; plant anatomy; plant physiology; soybeans.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Cerrados (CPAC)	
Exemplares: 	CPAC - (11675-1) - UPC - SP - -- - CRI4896 -  - CRI4896 - DIS