EVALUATION OF TOLERANCE TOWARD SALINITY TENSION IN VARIOUS GENOTYPES OF CUMIMUM CYMINUM IN LABORATORY CONDITION

A high percentage of medicines using by developed countries people have herbal origin. With respect to progressing development of salt lands and lack of favorable farming lands to agriculture, detection of resistant against salinity is so important. Choosing medical her bals resistant against salinity is so important. Selecting plants resistant to salinity during germination through hydroponic cultivation is considered as low cost and reliable method to saving time.In this study, germination power of plants seeds under sa linity tension for Cuminum cyminum is evaluated. In this research, treatment consisted of 5 concentrations of salt, 1, 3, 5, 7 and 9 Deci Siemens per meter (dS / m) and used genotypes includes Sabzevar, Khosf, Ghouchan, Sarayan, Kashmar, Gonabad, Zirkooh ,Esfrayn, Tabas, Torbatejam and with 3 repetitions. This study performed in Birjand University Research laboratory during which the effect of salinity on 10 Cumimum genotypes. The results indicate a reduction in germination rate, root length, shoot length, hypocotyl length, dry weight, wet weight, length of the plant, root shoot ratio, seed vigor. This decline was different in plants. Based on test results, Sabzevar genotypes was better in understudied genotypes in respect of tolerance to salinity.