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分析食用菌生产中杂菌污染的来源?

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正确答案:

1)制种过程中,菌种已经污染,纯种不纯;

2)培养料的灭菌不彻底,还存在其它的菌体;

3)接种装袋过程中,可被杂菌感染;

4)在培养过程中,由于环境较差,有污染源;

5)菌袋等的破裂或密封不严也可造成杂菌的污染。

答案解析:

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