四、原种的制备把培养好的母种从试管中转接到原种培养基上进行扩大培养,长成的菌种就是原种。原种培养基可分为单项培养基和综合培养基两大类。两类用料不同,制法各异。单项培养基的优点是菌丝生长快、质量好,且出菇快、产量高。综合培养基的优点是成本低,适合大规模生产。两类 Fourth, the preparation of the original species to cultivate a good mother from the test tube medium transferred to the original culture medium to expand training, grow into the species is the original species. The original medium can be divided into single medium and integrated medium two categories. Two types of materials are different, different manufacturing methods. The advantages of a single culture medium is mycelial growth fast, good quality, and fruiting quick, high yield. The advantages of the integrated medium are low cost, suitable for large-scale production. Two categories