Resumen

LOPEZ SANCHEZ, Raúl Carlos et al. Response of Rhizobium - Clitoria ternatea combinations under salt stress in the Cauto Valley in Cuba. Rev. mex. de cienc. pecuarias [online]. 2011, vol.2, n.2, pp.199-207. ISSN 2448-6698.

The purpose of the present study was to examine response of Clitoria tarnatea under salt stress to inoculation with native isolates and commercial strains of Rhizobium. This study was carried out both in greenhouse and field conditions. Effects of three Rhizobium strains (Jd19, 1031 and 1032) were compared to control and mineral N fertilization regarding yield and nitrogen fixation parameters. In the greenhouse experiment the best results for yield and nitrogen fixation parameters were found for the Jd19 native isolate treatment, where the highest dry weight of both shoots and roots and also of nitrogen uptake were observed. Besides, this treatment showed the highest K:Na ratio, as well as of contents of ureides, of a and b chlorophyll in stem and the best inoculation effectiveness index. In the field test, the Jd19 treatment showed the best positive effect in comparison to the other treatments. Results indicate that the Clitoria ternatea-Jd19 Rhizobium strain combination is the most efficient under salt stress and also that its wide scale introduction in saline soils is possible.

Palabras llave : Salt stress; Nitrogen fixation; Legumes.

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