College of Agriculture, University of Diyala discussed a master dissertation on using of selection techniques to produce strains resistant to salt stresses of Paulownia plant propagated via tissue culture by the pistgraduate student, Mr. Alaa Abbas Mohamed. The dissertation aimed at studying the effect of plant growth regulators on callus formation and the effect of adding different concentrations of folic, jasmonic and salicylic acid on the tolerance of multiplying plants to salt stress and the production of folate, as well as testing the role of acids in improving the tolerance of paulownia plants to salinity. The dissertation confirmed that the adding of auxins to the MS food medium, interfering with cytokinins, stimulated the formation of callus and increased its size and soft weight, as well as adding of jasmonic acid at a concentration of 40 micromoles to the food media reduced the harmful effects of salt stress, while adding of Nacl reduced the production of phenolic compounds and the removal of plants developing in the replication stage. The dissertation recommended using of other stress resistors to improve the performance of the breeding branches and studying the performance of callus farms in the production of phenols under saline stress conditions.