It grew fast during seedling stage.North distri-bution provenance and introduced secondary provenance had advantages of strong cold tolerance which reduced with altitude of provenance distribution.

• 翅荚木苗期极为速生,分布区北缘种源和经过引种驯化的次生种源在丽水市表现出耐寒及抗冻性较强,随着种源分布区纬度的降低,抗冻性迅速递减。