Utilization of Lignocellulosic Substrates on Oyster Mushroom (Pleurotus citrinopileatus) Cultivation

Abstract

Background: Mushroom cultivation increased throughout the world with the utilization of crop residues. Oyster mushroom (Pleurotus spp.) is suitable for most of the area and less expensive for cultivation with the availability of paddy straw. Increasing demand of paddy straw compels to search alternate source of substrate for mushroom production. Based on this information efforts were taken to compare many locally available leaf substrates for Pleurotus citrinopileatus production. Methods: Leaf substrates viz., teak, bamboo, maize, banana, coconut, mango, sugarcane bagasse and grass (Dactyloctenium aegyptium) were tested for the cultivation of P. citrinopileatus. Grain substrates viz., paddy, cumbu, bengal gram, green gram, sorghum, black gram, ragi and the above leaf substrates were studied for their effect on radial mycelial growth and dry weight of P. citrinopileatus. Result: All the leaf substrates were on par with each other for radial mycelial growth. Highest mycelial dry weight of 724.67 mg was recorded in paddy straw. Among the different leaf substrates used for mushroom bed preparation, banana leaf substrates showed highest yield of 115.00 g than paddy straw. Weight of mushroom spent bed was recorded to observe the utilization of substrates in which bamboo was decomposed at the maximum. Addition of grain substrates enhanced the growth of mycelium.