Diversidad genética de rizobios simbiontes de Lotus glabler en la Pampa Deprimida del Salado.

ESTRELLA, MJ., MUÑOZ, S., CASSAN, F., RUIZ, OA., OLIVARES, J., SOTO, M.J., SANJUÁN, J.

Escorial. Madrid. España

Congreso; XI Reunión Nacional de Fijación de Nitrógeno; 2006

Sociedad Española de Fijación de Nitrógeno.

The The Salado River Basin (SRB) is the most important region for beef and dairy cattle production in Argentina. Low fertility, high salinity and pH are typical features of soils in the SRB. These factors negatively affect the adaptation of vegetable species with high nutritive value and limit the productive development of natural grasslands, the main forage source in this region. Lotus tenuis is a legume native from the Mediterranean region that has been naturalized in the SRB. The optimization of the symbiosis between L. tenuis and native rhizobia of the SRB could be an useful approach to increase forage productivity and quality in the SRB. The aim of this work is to perform a taxonomic, symbiotic and physiological characterization of native rhizobia and a subsequent selection in order to obtain high quality inoculants for L. tenuis cultivated in the SRB. This work was supported by LOTASSA (UE-INCO) and CSIC-CONICET 2005AR0018 projects. The Salado River Basin (SRB) is the most important region for beef and dairy cattle production in Argentina. Low fertility, high salinity and pH are typical features of soils in the SRB. These factors negatively affect the adaptation of vegetable species with high nutritive value and limit the productive development of natural grasslands, the main forage source in this region. Lotus tenuis is a legume native from the Mediterranean region that has been naturalized in the SRB. The optimization of the symbiosis between L. tenuis and native rhizobia of the SRB could be an useful approach to increase forage productivity and quality in the SRB. The aim of this work is to perform a taxonomic, symbiotic and physiological characterization of native rhizobia and a subsequent selection in order to obtain high quality inoculants for L. tenuis cultivated in the SRB. This work was supported by LOTASSA (UE-INCO) and CSIC-CONICET 2005AR0018 projects. The Salado River Basin (SRB) is the most important region for beef and dairy cattle production in Argentina. Low fertility, high salinity and pH are typical features of soils in the SRB. These factors negatively affect the adaptation of vegetable species with high nutritive value and limit the productive development of natural grasslands, the main forage source in this region. Lotus tenuis is a legume native from the Mediterranean region that has been naturalized in the SRB. The optimization of the symbiosis between L. tenuis and native rhizobia of the SRB could be an useful approach to increase forage productivity and quality in the SRB. The aim of this work is to perform a taxonomic, symbiotic and physiological characterization of native rhizobia and a subsequent selection in order to obtain high quality inoculants for L. tenuis cultivated in the SRB. This work was supported by LOTASSA (UE-INCO) and CSIC-CONICET 2005AR0018 projects. The Salado River Basin (SRB) is the most important region for beef and dairy cattle production in Argentina. Low fertility, high salinity and pH are typical features of soils in the SRB. These factors negatively affect the adaptation of vegetable species with high nutritive value and limit the productive development of natural grasslands, the main forage source in this region. Lotus tenuis is a legume native from the Mediterranean region that has been naturalized in the SRB. The optimization of the symbiosis between L. tenuis and native rhizobia of the SRB could be an useful approach to increase forage productivity and quality in the SRB. The aim of this work is to perform a taxonomic, symbiotic and physiological characterization of native rhizobia and a subsequent selection in order to obtain high quality inoculants for L. tenuis cultivated in the SRB. This work was supported by LOTASSA (UE-INCO) and CSIC-CONICET 2005AR0018 projects. The Salado River Basin (SRB) is the most important region for beef and dairy cattle production in Argentina. Low fertility, high salinity and pH are typical features of soils in the SRB. These factors negatively affect the adaptation of vegetable species with high nutritive value and limit the productive development of natural grasslands, the main forage source in this region. Lotus tenuis is a legume native from the Mediterranean region that has been naturalized in the SRB. The optimization of the symbiosis between L. tenuis and native rhizobia of the SRB could be an useful approach to increase forage productivity and quality in the SRB. The aim of this work is to perform a taxonomic, symbiotic and physiological characterization of native rhizobia and a subsequent selection in order to obtain high quality inoculants for L. tenuis cultivated in the SRB. This work was supported by LOTASSA (UE-INCO) and CSIC-CONICET 2005AR0018 projects.