“…viz. cotton waste (Chang et al, 1981), jowar straw and groundnut pod (Khandar et al, 1991), wheat straw (Gupta and Langer, 1988), rubber wood waste (Mathew et al, 1991). Thomas et al, (1998) (Yildiz et al, 2002), unpretreated spent beer grains (Wang et al, 2001), banana and rice straw (Bonatti et al, 2004), various dry weed plants (Das and Mukherjee, 2007), peat moss based substrate (Tawiah and Martin, 2006) have also been used for the cultivation of P. ostreatus.…”