Effect of Juncao Media with Different pH on Mycelia Growth of Four Kinds of Fungi

In this article,Pleurotus ostreatus,Auricularia polytricha,Lentinus edodes and Ganoderma lucidum are cultivated by using Juncao media with different pH value.The results shows that the suitable range of pH value is 5~9 for mycelia growth of Pleurotus ostreatus,optimum pH value being 6~7.When pH value is 6,mycelia grows fastest,which is 6.375 mm/d.Suitable range of pH value is 5~9 for mycelia growth of Auricularia polytricha,pH value being 7~6.When pH value is 7,mycelia grows fastest,which is 3.600 mm/d.Suitable range of pH value is 4~9 for mycelia growth of Lentinus edodes,optimum pH value being 6~5.When pH value is 6,mycelia grows fastest,which is 3.250 mm/d.Suitable range of pH value is 4~9 for mycelia growth of Ganoderma lucidum,optimum pH value being 7~6.When pH value is 7,mycelia grows fastest,which is 5.350 mm/d.With an increase in acidity and alkalescence,their mycelia growth becomes slower and weaker.Under optimum pH value,their growth speed varies from fast to slow respectively,namely,their growth speed can be expressed on a fast-slow basis i.e,Pleurotus ostreatus,Ganoderma lucidum,Auricularia polytricha,Lentinus edodes.