水分胁迫下测定了4种冰草种子的吸水率、发芽率、发芽损伤率及胚根/胚芽比,结果表明,它们的耐旱顺序为沙芦草>沙生冰草>西伯利亚冰草>冰草。这与它们幼苗的抗旱性是一致的。 The water absorption rate, germination rate, germinating injury rate and radicle / germ ratio of four kinds of grass seeds under water stress were measured. The results showed that the order of their drought tolerance was as follows: Salix psammophila> Sarcandra sibirica> grass. This is consistent with the drought resistance of their seedlings.