Abstract
Five strains of oyster mushroom namely Pleurotus ostreatus (strain PK 505). Pleurotus ostreatus (strain PK 409), P. florida
(strain PK 514), P. sajor-caju (strain PK 411), Pleurotus sajor-caju (strain PK 408) and Pleurotus ostreatus (strain PK412)
were compared for their yield potential on different substrates(paddy straw, wheat straw, mung bean straw, cotton waste,
corncobs, corn stovers and sugarcane bagasse). Results on time required for completion of spawn running, formation of pinheads and maturation of fruiting bodies on different substrates indicated that in all the cases, they appeared earlier on cotton
waste. Similarly, maximum yield was obtained when these strains were grown on cotton waste while it was on the lower side
mungbean straw.
