Dear Dr. Elsayed MOHAMED Elazazi,

Look at this book.

http://www.amazon.com/Seeds-Second-Biogeography-Evolution-Germination/dp/0124166776/ref=sr_1_fkmr2_1?s=books&ie=UTF8&qid=1437287556&sr=1-1-fkmr2&keywords=seeds+ecology%2C+biogeography+elsevier

I hope it helps.

Sincerely,

Gharavi

do you try leaching

Use of GA4+7 instead of GA3 might be essential as germination from gibberellin deficient tomato mutants can't be rescued by GA3, but the seeds can germinate after providing GA4+7.

Article Gibberellins regulate seed germination in tomato by endosper...

Thanks for your good answer dear Fateme.