Since ancient times, mushrooms have been considered as a special kind of food. Blue oyster mushroom is a novel species with very large fruit body, blue coloured pinheads becoming light white on maturity, high yielder, palatable with meaty flavour and attractive keeping quality. Different types of cereal grains . maize, sorghum, bajra, wheat and paddy were taken to see their effect on spawn development and Different substrates . wheat straw, paddy straw, mustard straw, sesamum straw and pigeon pea straw significantly influenced the spawn run period, pinhead initiation and yield of H. ulmarius. Sorghum grains were found to be most suitable for spawn development of H. ulmarius, it took significantly less time ( days). | Effect of cereal grains on spawn development and different substrates on growth and yield of Hypsizygus ulmarius
