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This work highlighted the optimum culture conditions for secondary mycelia of selected Philippine wild macrofungi. The growth of different macrofungal species were evaluated on various indigenous culture media namely: coconut water gulaman, corn grit decoction gulaman, rice bran decoction gulaman, potato sucrose gulaman and potato dextrose agar (control). The effect of different physical conditions such as pH, illumination and temperature was also investigated. The daily mycelia diameter, mycelial density and incubation period were used in determining the optimum growth conditions. Among the indigenous culture media evaluated, coconut water gulaman significantly recorded the largest mycelia growth diameter in ten mushroom species/strains (mostly lignolytic) while potato sucrose gulaman favored the growth of two strains of V. volvacea. No significant difference in mycelial diameter of C. cinerea Sto Domingo strain on different indigenous culture media was recorded In terms of the pH of the media, most of the evaluated mushrooms registered maximum mycelial growth and very thick to thick mycelial density in a medium having a pH ranging from 6.0 to 7.0. Moreover, illumination significantly influenced the mycelial growth of four mushroom species. Incubation in lighted condition favored the growth of L. sajor caju, and S. commune CLSU strain whereas dark condition showed maximum growth of G. lucidum strain B and L. tigrinus CLSU strain. G. lucidum strain A, L. tigrinus CLSU strain, G. lucidum strain B and C. cinerea Sto Domingo strain incubated at room temperature (32 + 0.91 o C) significantly exhibited wider mycelia diameter and shorter incubation period than those in air condition (23+ 1.35 o C). No mycelial growth was observed at 9 o + 0.0 o C.

Optimization of culture conditions for secondary mycelial growth of wild macrofungi from selected areas in Central Luzon, Philippines