EP4号无抱子灰白平菇，是湖北省宜昌市四0三里区食用菌研究所于1995年4月用1株变异的重6．85kg的巨型无抱子平菇，通过组织分离纯化培育成功的可消除由平菇抱子弹射引起“蘑菇肺”病症的优质食用菌新品种。特征特性：抗杂，耐二氧化碳，耐粗放栽培。菌丝生长道温2℃－36T，最适 EP4 No graying gray Pleurotus ostreatus, is the Institute of Edible Fungi, 40 0 ​​Sanli District, Yichang, Hubei Province in April 1995 with a mutant weight of 6.85kg without giant spores Pleurotus ostreatus, was successfully isolated and purified by tissue culture It can eliminate the new variety of high-quality edible fungus caused by the mushroom mushroom bullet catapult caused by the ejection. Characteristics: Anti-miscellaneous, carbon dioxide-resistant, resistant to extensive cultivation. Mycelial growth temperature 2 ℃ -36T, the best