许多研究证明,贮藏在低温低湿下的禾本科牧草种子可保持其发芽力。Canode发现,当种子藏贮在冷凉干燥(5℃,40％相对湿度)的环境中,六种禾草中的四种贮藏10年以后不改变其发芽率。Hafenrichter等报导,在冷干贮藏环境中,21种禾草种子中的11种至少保持70％的发芽率8年(Aberdeen,Idaho),而在冷湿环境中发芽率迅速降低(Bellingham,Wash)。Knowles报导在-18℃下贮藏无芒雀麦(Bromus inermis),沙生冰草(Agropyron desertorum)和中间冰草(A.intermedium) Many studies have shown that gramineous grass seeds stored under low temperature and low humidity can maintain their germination ability. Canode found that when seeds were stored in a cool, dry (5 ° C, 40% relative humidity) environment, four of the six grasses did not change their germination rate after 10 years of storage. Hafenrichter et al. Reported that 11 out of 21 gramineous seeds maintained at least 70% germination for 8 years (Aberdeen, Idaho) in cold-dry storage and rapidly decreased in cold and wet environments (Bellingham, Wash) . Knowles reported storage of Bromus inermis, Agropyron desertorum and A.intermedium at -18 ° C,