---

In order to investigate the effect of Arbuscular-Mycorrhizal fungi on growth in Berseem clover (Trifolium alexandrum L.) plant under different levels of sewage sludge, a greenhouse experiment was conducted in a randomized complete block design with twelve treatments and three replications. The treatments of the experiment were a combination of three Mycorrhizal fungi status (Mi= Glomus intraradices, Mm= Glomus mosseae and M0= non-inoculation) and four sewage sludge levels (S0=0, S1=25, S2=50 and S3=100 ton per ha). The results showed that adding sewage sludge significantly increased dry weight growth parameters of clover, root dry weight, root length and weight of nodes in clover plant, but the percentage of roots colonization was significantly reduced. Root inoculation of clover plant with two species of Arbuscular-Mycorrhizal Fungi had positive and significant effect on most growth parameters of clover in comparison to non-inoculation.

---

Considering the importance of agricultural issues in adjacent lands to normal saline watersheds and its effect on plant growth and production, the present study was carried out in order to investigate the interaction effect of arbuscular mycorrhizal fungi and plant growth regulator of brassinolide on the possible reduction of adverse effect of salinity on wheat Pishtaz cultivar. The present research in a factorial randomized complete blocks design was conducted with four replications. Thus, mycorrhizal plants with Glomus mice (after ensuring mycorrhizal roots) and non-mycorrhizal 14 days by 24-epibrassinolide with zero and five micro molar concentration were foliar spray three times every other day. Then, they were irrigated by saline water originated from Urmia Lake and the electrical conductivity (EC) zero and 15 ds m per meter one time every three days. Finally, the 26-day-old plants were harvested and transported to the laboratory in order to perform some physiological measures. Findings showed an improvement in leaf area and reducing membrane leakage in separate fungal and brassinolide treatments. While the interaction effect of these two treatments only in the leaf area at the level of P< 0/05 was significant. Also, the effect of significant synergistic interaction between the two treatments by the higher antioxidant activity including antioxidant of superoxide dismutase and the amount of leaf anthocyanin and also the percentage scavenging of free radicals (DPPH) was observed.