恒定磁场对加工型番茄屯河9号种子萌发的影响

Effects of Static Magnetic Field on Seed Germination of Tomatio Tunhe 9

[目的]探究磁场对加工型番茄种子萌发的影响。[方法]分别用100、200、300、和400 m T的恒定磁场处理对屯河9号的种子分别处理5、10、15、20 min,测定种子的发芽率、发芽势、发芽指数以及种子活力指数和相对电导率。[结果]400 m T磁处理对种子萌发有抑制作用,其他场强均有促进作用,300 m T处理10 min的促进作用最强。[结论]屯河9号的最佳磁处理条件是300 m T处理10 min。

[ Objective ] The research aimed to know the effects of magnetic field on germination characteristics of tomato seeds. [ Method ] Seeds were magnetically exposed to magnetic field strengths of 100 mT, 200 roT, 300 mT and 400 mT for different periods of time （5 min, 10 min, 15 min and 20 min）. After exposing the seeds to magnetic field, germination rate, coefficient of uniformity, mean germination and elec- trical conductivity of seeds were evaluated. [ Result] Magnetic treatment （400 mT） had the inhibiting influence on seeds, and the other had the promotion effects especially magnetic field strength of 300 mT for 10 min. [ Conclusion] The optimum magnetic treatment condition of Tun- he 9 was 300 mT for 10 min.