The effect of different substrates and disinfection treatments on yield in oyster mushroom (pleurotus ostreatus) cultivation

The aim of this study was to investigate the effect of different substrates and disinfection treatments on yield and quality in oyster mushroom (Pleurotus ostreatus) cultivation. The study carried out in a controlled-mushroom production room, which is located at Agriculture Faculty of Akdeniz University, during January-May 2013. The spawns of mushroom were inoculated on wheat straw + wheat bran (2:1), wheat straw + wheat bran + carob waste (2:1:0.5) and wheat straw + wheat bran +carob pulp (2:1:1) as substrates. These substrates were treatmented by %1, %2, %3 of sodium hypochlorite (SH) solution, and the control was sterilized by autoclave. Mycelium growing duration, total yield, biological efficiencies and pomological charecteristics of oyster mushroom were determined. The fastest mycelium growing durations (35 days) and the highest total yield (154.23 g/kg bag) and also the best biological efficiencies (%69.70) were obtained from wheat straw + wheat barn (2:1) with autoclaved treatment. The highest cap size and stem length of oyster mushroom were obtained from control substrate (7.42 cm and 2.66 cm) respectively, However when carob pulp added into the subsrate, cap size increased and also stem of the mushroom become thick. The ratio of mycelium development in substrate treatmented by sodium hypochlorite was about %50, but mushroom yield wasn?t obtained from sodium hypochlorite treatment, except %1 of SH concentration.