Light and temperature were used to initiate the formation
of pinheads after the mycelium was fully grown on the substrate
i.e. after the substrate was fully turned into white color due to
mycelium mass. The growing mycelium that was placed in dark
was brought to a fully illuminated region; on the other hand, the
bottles and plastic bags that were put in the incubator at 25
o
C were
placed at ambient temperature. The ambient temperature,
when the experiment was conducting, was varying from 3
o
C to
19
o
C.