Effects of (ELF) extremely low frequency (50 Hz)AC and DC magnetic fieldson lentil germination and seedlings growth

In this study the effects of different intensities of ac (2.7 mt and 3.5 mt) and dc (3.7 mt and 4.5 mt) magneticfields and exposure times (30, 60 and 90 min) on germination and primary growth of lentil seeds have beeninvestigated. the treated and untreated seeds were cultivated under an identical condition of the water-bedded petridishin a temperature, lighting and relative humidity. growth indices were measured every day at the same time fora week. it was found that the magnetic fields have no effect on the percentage of germination rates of the treatedlentil seeds compared with that of the untreated seeds. the length of roots were increased about 16-31 % in acmagnetic field intensities of 2.7 mt and 3.5 mt and 10-13 % in dc magnetic field intensities of 3.7 mt and 4.5 mtdifferent in exposure times compared with controls. the stem’s length were increased about 29-35 % in 2.7 mt anddecreased about 3-15 %, in higher intensities of 3.5 mt, 3.7 mt and 4.5 mt compared with controls. according tothe results, magnetic fields can affect the early growth of lentil seeds and these effects are altered with different intensitiesand times of exposure.