Seed pretreatment method of bletilla seeds before direct seeding

The invention relates to a seed pretreatment method of bletilla seeds before direct seeding. The method comprises the following steps of (1) harvesting and drying fruit pods in air; (2) peeling seedsfrom the fruit pods; (3) performing cold storage treatment; (4) performing hormone treatment; (5) performing natural separation. The method has the advantages that the operation is simple; the popularization performance is high; the germination rate of the bletilla seeds can be effectively improved. Compared with the bletilla seeds before treatment, the bletilla seeds have the advantages that thebletilla seed germination rate is improved by 50 to 70 percent; the bletilla planting cost is effectively reduced; the economic benefits and medical benefits are improved. 本发明涉及种白芨种子直播前的种子预处理方法，包括以下步骤：1)采收并晾干果荚、2)果荚剥种、3)冷藏处理、4)激素处理、5)自然分离。本发明优点在于：操作简单，可推广性强，可以有效提高白芨种子的萌发率，与未处理之前相比，白芨种子萌发率提高了50-70％，有效降低白芨种植的成本，提高经济效益和医学效益。