The effects of AM fungi on the growth and physiological characters of Medicago sativa L.under NaCl stress were studied.Three NaCl treatments levels of 0%,0.5% and 1.0% were added to the soil for the potted plant.The results showed that application AMF influenced the growth of host plants(the height,P<0.05),the soluble sugar,soluble protein and proline content in roots were all increased along with the heighten of NaCl levels.The fresh-weight of the host plants roots was 1.27 times more heavier than non-inoc...