Oyster mushroom (Pleurotus ostreatus) is an important and is a good
source of proteins, vitamins and minerals. In Pakistan local strains of
mushroom are cultivated on various agricultural by-products as
substrate. The widely used substrate for cultivation of the Oyster
mushroom in Asia is rice straw. Keeping in view, its importance as a
good source of energetic product having high protein value, the present
studies were conducted to investigate the yield of exotic strains on
cotton waste alone and were compared with amended rice husk under our
natural environmental conditions. It was found that cotton waste + rice
substrate gave the maximum yield of edible mushroom with the strain P.
(sajor-caju) pulmonarious (WC-537) as compared to the substrate applied
alone.