Data/hora: 07/06/2024 11:10:19

Biblioteca(s): 	Embrapa Soja.	
Data corrente: 	07/04/1993	
Data da última atualização: 	18/08/2004	
Autoria: 	RAO, V. R.; THOTTAPILLY, G.; AYANABA, A.	
Título: 	Studies on the persistence of introduced strains of Rhizobium japonicum in soil during fallow, and the effects on soybean growth and yield.	
Ano de publicação: 	1982	
Fonte/Imprenta: 	In: GRAHAM, P.H.; HARRIS, S.C., ed. Biological nitrogen fixation technology for tropical agriculture. Cali: CIAT, 1982.	
Páginas: 	p.309-315.	
Idioma: 	Inglês	
Notas: 	Based on papers presented at a workshop held at the Centro Internacional de Agricultura Tropical March -9-13, 1981. Cali, Colombia.	
Conteúdo: 	Inoculation experiments with the American soybean cultivars TGm 80 ('Bossier') and TGm 294-4 in Nigeria in 1978 showed striking responses to inoculation. Because African farmers practice shifting cultivation, we examined the persistence of the inoculant strains in soil, and their ability to sustain soybean yields after a two-year fallow period. After the fallow period, significant increases in nodule mass, shoot weight, and grain yield were again observed in the inoculated plots, where TGm 80 and TGm 294-4 were grow, in comparison to the uninoculated treatments. With 'Orba' the differences were not signficant. Serological typing of the nodules using the Enzyme Linked Immunosorbent Assay (ELISA) revealed that most of the nodules formed on the three soybean cultivars were from the strains introduced in 1978. We conclude that the nitrogen fixed by these nodules could sustain the growth and yield of soybean cultivars after a two-year fallow period, thus encouraging a possible low-input soybean cultivation by subsistence farmers in Africa.	
Palavras-Chave: 	Growth; Inoculation; Soybean; Yield.	
Thesagro: 	Crescimento; Inoculação; Rendimento; Rhizobium Japonicum; Soja.	
Thesaurus Nal: 	Africa; Nigeria.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)	
Exemplares: 	CNPSO - (10534-1) - ADC - PL - -- - 631.84 - G738b -  - DIS