Effect of salty stress on some physiological and symbiotic activities of green bean (Phaseolus vulgaris L), variety, Coco Rose

In Algeria, the factors which contribute to the extension of the phenomenon of land salinization are linked to aridity and the climate which affects >95% of the territory, and the poor quality of irrigation water, to the system of drainage often non-existent. or non-functional, our work in this context and shed light on the effects of salt stress on a sensitive legume. Our study aims to evaluate the effect of salt stress on physiological parameters, and the mycorrhizal activity of Phaseolus vulgaris L, Coco Rose variety and soil analyzes were also carried out. The latter are grown in pots subjected to salt stress with increasing concentrations of Nacl solution of 6%, 9% and 12%. Our results confirm that saline stress induces an effect on the parameters studied to varying degrees compared to the control. However, a low content of Chlorophyll A, protein and sugars was recorded and an increase in the proline content as well as a negative influence on the physicochemical parameters of the soil each time the concentration increased. However, on mycorrhizal activity, the results showed a decrease in the colonization rate each time the "Nacl" concentration increased between 80, 60 and 30% respectively for decreasing Nacl concentrations.