The Selection of Locally-Available Substrates for Ganodenna lucidum Production

Abstract

This study was conducted to test for the most effective and locally-available organic materials as substrates for the mycelial growth and fruiting body development of Ganoderma lucidum, namely rice bran, rice hull, sawdust, ipil-ipil leaves and coir dust as well as their paired combinations. As early as the second week of observation, treatments SM (rice bran and coir dust) and LM (ipil-ipil leaves and coir dust) exhibited class 4 (51- 75%) mycelial growth, indicating a promising growth rate for both substrates. Both treatments YL and LM achieved class 5 (76-100%) mycelial growth on the third week, followed by YI (sawdust and rice hull), IM (rice hull and coir dust) and SM (rice bran and coir dust) in the succeeding weeks. Fruiting body growth rate was high on SY and YL (sawdust and ipil-ipil), the former starting on the third week and the latter starting on the fourth week of observation. Fruiting body maturation was exhibited in YL by week 5. Hence, most effective substrate for mycelial colonization is LM (Ipil-ipil and coir dust); for fruiting body growth it is YL (sawdust and ipil-ipil).