Azospirillum sp . inoculation in wheat, barley and oats seeds greenhouse experiments

• Autor(a) principal: Dalla Santa,Osmar R.
• Data de Publicação: 2004
• Outros Autores: Hernández,Ramona Fernández, Alvarez,Gergina L. Michelena, Ronzelli Junior,Pedro, Soccol,Carlos Ricardo
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Brazilian Archives of Biology and Technology
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000600002
• topic: Azospirillum; Wheat; Barley; Oats; Nitrogen fixation; Plant growth promotion

The aim of the present work was to evaluate the inoculation effects of Azospirillum sp. RAM-7 strain, in seeds of wheat, barley and oats cultures on yield and total nitrogen content of the grains in greenhouse experiments. Seeds inoculation with Azospirillum sp. RAM-7 strain enhanced grain yields, even so, the responses vary among the evaluated cultures. For wheat, significant increases were obtained when the inoculation was associated to 100% of the recommended nitrogen, although the treatment that received only inoculation produced 7.4% above the control, however this difference wasn't significant. For barley, the presence of the inoculant substituted 20% the recommended nitrogen fertilization. For oats the inoculation with Azospirillum sp. RAM-7 didn't provide a significant increase in grain yields. In relation to the total nitrogen content of the grains, for all studied cultures, significant differences were not observed among the evaluated treatments (p < 0.05).