几年来,我市平菇生产发展很快,并且逐步转向温室栽培,这对于弥补我市晚秋至早春蔬菜的不足具有现实意义。但是由于温室内环境密闭,平菇孢子飞扬对人体的危害越来越严重,致使一些人不得不放弃平菇栽培。为此,我们从1986年开始对国内现有的五个无孢平菇菌株进行了比较试验,从中选出了三株作为本地栽培的良种,现将结果简介如下: Over the past few years, the rapid development of mushroom production in our city, and gradually shifted to greenhouse cultivation, which make up for the lack of vegetables in late autumn to early spring in our city has practical significance. However, due to the closed environment in the greenhouse, the spores of Platycladus orientalis splashed on the human body more and more serious, resulting in some people had to give up cultivation of mushrooms. To this end, we started from 1986 to compare the existing five strains of Pleurotus ostreatus domestic comparative test, from which three strains were selected as local cultivars, the results are as follows: