电场对油葵种子萌发影响的有效时间

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

电场环境对种子的影响属于当代效应,电场处理种子的生物效应是否存在有效时间,是值得关注的问题。在1.0～5.5kV.cm-1场强范围,油葵种子用不同电场条件处理,筛选产生显著性影响的处理条件。再用显著性影响条件处理油葵种子,试验研究电场对种子萌发影响的有效时间。结果表明,电场处理油葵种子显著提高种子的发芽势、发芽率及种子的超氧化物歧化酶(SOD)和过氧化物酶(POD)的活性。电场对油葵种子萌发期的影响存在有效时间,有效时间为3周。在电场处理种子技术的应用中,电生物效应的有效时间是应该注意的问题。

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.