Objective To break the seed dormancy and improve the germination rate of the Nirtaria sibirica seeds.Methods N.sibirica seeds were treated with soaking in warm water,storing with moisture sand,and immersing seed in H2SO4(98%) and gibberellic acid(GA),then the germination rate,germination vigor,and germination peak period of the seeds were determined.Results The germination rate and germination vigor were 30% and 10% under soaking in warm water.The seeds began to germinate on the day 7 and reached the germin...