Effect of combined nitrogen on dinitrogen fixation and productivity in Pisum sativum L. Inoculated with different strains of Rhizobium

Hervás, Ana B.; Caba, Juan Manuel; Ligero, F.; Lluch, Carmen

doi:10.1016/0045-6535(91)90211-u

Cited by 3 publications

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Influence of host genotypes on growth, symbiotic performance and nitrogen assimilation in faba bean (Vicia faba L.) under salt stress

1995

Self Cite

View full text Add to dashboard Cite

A b s t r a c tFifteen genotypes of faba bean (Viciafaba L.) were inoculated with salt-tolerant Rhizobium leguminosarum biovar. viciae strain GRA19 in solution culture with 0 (control) and 75 mM NaC1 added immediately after transplanting. Genotypes varied in their tolerance of high levels of NaCI. Physiological parameters (dry weight of shoot and root, number and dry weight of nodules) were not affected by salinity in lines VF46, VF64 and VF112. Faba bean line VF60 was sensitive to salt stress. Host tolerance appeared to be a major requisite for nodulation and N2 fixation under salt stress. Tolerant line VF112 sustained nitrogen fixation under saline conditions. Activity of the ammonium assimilation enzymes glutamine synthetase and glutamate synthase, and soluble protein content, were reduced by salinity in all genotypes tested. Evidence presented here suggests a need to select faba bean genotypes that are tolerant to salt stress.Abbreviations: ARA -acetylene reduction activity, NADH-GOGAT -NADH-dependent glutamate synthase, GS -glutamine synthetase.

show abstract