食用菌菌种的培养都是封闭或无菌条件下完成的，其制作过程如下：母种→原种→栽培种。对于栽培种用量大，所需设备多，生长周期长，较易污染，菌种生产量受到限制。本方法之目的是提供一种新的竹荪制种方法，使封闭式无菌操作变开放式或自然条件下操作，创造了良好的通气条件 Cultivation of mushroom strains are closed or sterile conditions completed, the production process is as follows: Mother species → species → cultivated species. For large amount of cultivated species, the required equipment, long growth cycle, easier to pollution, strain production is limited. The purpose of this method is to provide a new method for seed production of Dictyophora which allows closed aseptic manipulations to be operated in an open or natural condition and creates good aeration conditions