The seed uses gunny-bag common dry Tibet, gemmiparous rate reduces 2-3 after year 8-15% , microtherm is sealed dry Tibet, 5 years gemmiparous rate is reduced only 5% .

• 种子用麻袋普通干藏,2-3年后发芽率降低8-15%25,低温密封干藏,5年发芽率只降低5%25。