Your question is not well written. I do not understand your question. For your research in electromagnetic effect on seeds such as mutations I suggest read on Dr. Robert O. Becker (Cross Current, Body Electric)
Yes. I wrote wrong. At imbibition stage (seed takes water and enzymes and hormones are being active, before seed germination); Under imbibition stage, can electromagnetic area create mutation on embryo?
This is what I understood. Just before seed germination stage, seed becomes active by taking in water, enzymes and hormones. This is called imbibition stage. Does the seed's exposure (at that stage) to electromagnetic field mutates its embryonic cells ? Yes and Becker proved it in his experiments. Reading his books should give you some clues and references. Good luck.
Not sure if you want to induce mutation or avoid it. If you want to induce, there are better mutagenic agents than electromagnetic field. What crop and what mutations are you seeking? I have added a recent review on the subject. We have ongoing mutation work if you like to visit us.