In most parts of Iran, the salinity of water and soil is regarded as one of the effective factors in reducing the growth of plants. Silicon is one of the beneficial elements in increasing the resistance of plants against environmental tensions like salinity. In order to assess the effect of Silicon (Si) and salinity on some parameters of this lown, an experiment was conducted in the spring season of 1391(2012) in factorial which was based on a fully randomized plan with six salinity levels (0, 2, 4, 6, 8, 10 DS/m) and three Silicon levels (0, 0.3, 0.6 Ml/L Silamol) with three replications. The growth indexes (length of stem; the length of tiller; number of leafs in stem; number of leafs in tiller; and the number of tillers in the bush were analyzed. The results showed that salinity has a significant reducer effect on all of the measured indexes. The consumption of Silamol was solely meaningful in all of the evaluated factors except for the length of stem, and the number of leaves in the stem.
