Título:	Performance of polymer compositions as carrier to cowpea rhizobial inoculant formulations: Survival of rhizobia in pre-inoculated seeds and field efficiency.
Autoria:	FERNANDES JUNIOR, P. I. SILVA JÚNIOR, E. B. da SILVA JÚNIOR, S. da SANTOS, C. E. R. da S. e OLIVEIRA, P. J. de RUMJANEK, N. G. XAVIER, G. R. MARTINS, L. M. V.
Afiliação:	PAULO IVAN FERNANDES JUNIOR, CPATSA; ELSON BARBOSA DA SILVA JÚNIOR, Universidade Federal Rural do Rio de Janeiro, Instituto de Agronomia; SEBASTIÃO DA SILVA JÚNIOR, Universidade Federal Rural de Pernambuco, Departamento de Agronomia; CAROLINA ETIENNE ROS.
Ano de publicação:	2012
Referência:	African Journal of Biotechnology, v. 11, n. 12, p. 2945-2951, 2012.
Conteúdo:	Rhizobial-legume association is a symbiosis that is exploited in agriculture by inoculant production. Efficient inoculant formulations are needed to increase the biological nitrogen fixation rates in agroecosystems. The aim of this work was to evaluate inoculant formulations to cowpea (Vigna unguiculata L. Walp) containing polymers as carrier materials and rhizobial strains. To assess the efficiency of the new inoculants formulations, the rhizobial survival in inoculated and stored seeds and the field performance of a selected formulation were evaluated. The rhizobial survival was higher in cowpea seeds inoculated with MgO compatibilized polymeric formulations, compared to standard peat-based inoculant and compatibilized polymeric formulations compatibilized with ZnO. Seeds inoculated with IPC 2.2 formulation presented more than 106 cells per seed through 35 days of storage with low contamination levels. The field performance of the polymeric compositions was the same as that observed in the peat-based inoculant treatments. Among the three rhizobial strains isolated, two of them were able to provide the same shoot nitrogen content and productivity in comparison to the recommended strain. These results indicate the feasibility of inoculants with the polymer blends as carrier materials and the efficiency of the new fast growing rhizobia from Brazilian semi-arid.
Thesagro:	Vigna Unguiculata
Palavras-chave:	Tecnologia de inoculante Seleção de estirpes Fixação biológica de nitrogênio
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPAB)