1987年夏季,我所在种植中温型平菇生产中,由于气温高、昼夜温差小,子实体分化困难,导致一部分菌丝老化、变黄,造成一定损失。在栽培生产中,我们观察到,放在低温下保存的部分栽培种,解除低温保存后移至常温下,出菇较迅速。受这一启示,我们进行了本试验,现将试验结果简报如下: In the summer of 1987, due to the high temperature, the small temperature difference between day and night, and the difficulty of differentiation of fruiting bodies, some of the mycelium were aging and yellowing, causing some losses. In the cultivation of production, we observed that some of the cultivars stored at low temperature, remove the low temperature storage moved to room temperature, fruiting more quickly. By this revelation, we conducted the test, the test results are now briefed as follows: