Hadad M.A1 , H.S. Al-Hashmi2 , Mirghani S.M.1
This work was carried out to investigate the effect of alien and indigenous strains of mycorrhizal fungi on two tomato cultivars recommended for economical production in Oman under greenhouse conditions. Three levels of phosphorus were added with and without mycorrhiza in a greenhouse experiment using sweet and brackish water (EC= 0.8 and 4 dS/m, respectively). Upon harvest (two and a half months from sowing), the data collected included number of branches, shoot and root weights, number and weight of fruits, tissue phosphorus, and nitrogen. Differences were encountered between the two cultivars as to their response to treatments. The addition of Omani mycorrhiza greatly enhanced plant growth traits in the Donato cultivar. Tissue P was increased which is reflected in the number and weight of the tomato fruits. The salinity effect was minimal probably because of the use of cultivars selected for high water salinity by the research center.
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