Comparison between the reference [i]Rhizobium tropic[/i]i CIAT899 and the native [i]Rhizobium etl[/i]i 12a3 for some nitrogen fixation parameters in common bean ([i]Phaseolus vulgaris[/i] L.) under water stress
2012
Tajini, Fatma | Trabelsi, Mustapha | Drevon, Jean-Jacques | Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | Ecole Super Agr Mateur | Université de Gafsa - Sidi Ahmed Zarroug (UGAF) | Aquarhiz project of the EU INCOMED program
Publication Inra prise en compte dans l'analyse bibliométrique des publications scientifiques mondiales sur les Fruits, les Légumes et la Pomme de terre. Période 2000-2012. http://prodinra.inra.fr/record/256699
Mostrar más [+] Menos [-]Inglés. Drought stress is one of the most important factors limiting plant growth; in particular, water is regarded as a major problem in symbiotic nitrogen fixation for legume growth. The adverse effects of water stress on the rhizobial symbiosis of common bean genotypes CocoT and Flamingo were investigated in field conditions. Common bean plants were inoculated with rhizobia strains: Rhizobium tropici CIAT899 or Rhizobium etli 12a3, and grown under field conditions, plants were spray irrigated until the first flower was observed on set. Irrigation was stopped for 20 days in plants submitted to water stress. The enzyme-linked immunosorbent assay (ELISA) technique was used with polyclonal antibody to assess the occupancy in nodule of the rhizobia used for inoculation. Under water stress, a significant decrease in nodule population, nodules biomass, shoot content of nitrogen, growth and chlorophyll with all symbioses, whereas proline accumulation increased. The interaction between symbioses and water stress for all parameters was significant. Overall, 12a3 was more efficient than CIAT899 for Flamingo, though not for CocoT. It is concluded that symbiosis between Flamingo and 12a3 has potential for application in field under water stress in desert soil.
Mostrar más [+] Menos [-]Palabras clave de AGROVOC
Información bibliográfica
Este registro bibliográfico ha sido proporcionado por Institut national de la recherche agronomique