Effective Time of the Effect of Electric Field on Germination of Oil Sunflower Seeds

The effect of electric field on the seeds is only a current effect.It is worthy of attention if there is an effective time for biological effects of electric treatment on seeds.When the oil sunflower seeds were treated with electric field from 1.0 to 5.5kV·cm-1,the optimal conditions for accelerating germination were selected.After the seeds were treated with the optimal conditions,the effective time of the electric biological effect is tested by comparing with those of the treated seed under different period of storage.Results showed that the germination,SOD and POD activity of the treated seeds were significantly accelerated compared with that of the untreated seed.However,there is an effective time for the effect of electric treatment on oil sunflower seeds.The effective time lasts for three weeks.The effective time for effect of electric field on the seeds should be taken into consideration during the application of the technology of electric treatment seeds.