经方差分析 ,t检验和 q检验 ,用 2 %浓度的保水剂预处理油松、侧柏种子培育苗木 ,其出苗率明显高于用 1 %、3%、4%浓度保水剂和清水处理的种子的出苗率 ;用 2 %和 3%浓度保水剂处理的种子 ,其幼苗抗旱能力较强 ,苗木保存率与清水处理的有极显著差异 ,SA型和 P型保水剂之间无显著差异 ,而两树种间的出苗率和苗木保存率均存在极显著差异 The analysis of variance, t-test and q-test showed that the emergence rate of seedlings was significantly higher than that of seedlings treated with 1%, 3%, 4% water-retaining agent and water Seed germination rate; seeds treated with 2% and 3% water-retaining agent, the seedling drought resistance is strong, the preservation rate of seedlings and water treatment have very significant differences, SA-type and P-type water retaining agent no significant difference, The emergence rate of two species and seedling preservation rates are very significant differences exist