Vol. 4, Issue 1, Part A (2022)

The present study was conducted in different substrates for Cultivation of Oyster (Pleurotus spp.) Five substrates viz., straw, sorghum straw, mustard straw. pearl millet straw and wheat + sorghum straw were tested alone and in combination with supplements to compare their efficacy in the growth pattern, yield and yield related pattern of fruiting bodies of Pleurotus spp. The results indicated that S-01 strain observed minimum days (16.00) for complete spawn run, and minimum days (21.00) for pin head formation, (26.00) days of fruit initiation in wheat straw. In case strain S-02 recorded in minimum days (15.00) for complete spawn run, (19.00) for pin head formation and (24.00) days of fruit initiation in wheat straw, respectively. In S-03 observed minimum days (17.00) for complete spawn run and minimum days (22.00) for pin head formation, (27.00) days of fruit initiation in wheat straw, respectively. S-01 strain recorded maximum number of fruit bodies (30.00) on wheat straw whereas maximum average weight of fruit body (28.00) were observed in sorghum straw while minimum number of fruit bodies (22.00) was recorded on pearl millet straw. S-02 strain observed by maximum number of fruit bodies (94.33) on wheat straw whereas maximum average weight of fruit body (20.00) were observed in wheat straw followed by Minimum number of fruit bodies (77.67), and Average weight of fruit body (15.00g) was recorded on pearl millet straw. In case S-03 strain recorded by maximum number of fruit bodies (56.67) on wheat straw+ sorghum straw whereas maximum average weight of fruit body (18.00) were observed in wheat straw followed by minimum number of fruit bodies (42.00) in sorghum straw, while Average weight of fruit body (12.00g) was recorded on pearl millet straw respectively. In S-01 strain, wheat straw substrate gave highest total yield of 698.33g /1000g of dry substrate with corresponding 69.83 per cent biological efficiency while the least effective substrate was pearl millet substrate which produced a total yield of 576.69g/1000g of dry substrate. In case of S-02 strain recorded by maximum total yield of 787.12g/1000g of dry substrate with corresponding 78.71 per cent biological efficiency in wheat straw followed by minimum substrate was pearl millet which produced a total yield of 593.12 g/1000g dry substrate. In strain -03 observed by maximum total yield of 546.99g/1000g of dry substrate with corresponding 54.69 per cent biological efficiency in wheat straw+ sorghum straw followed by minimum substrate was sorghum straw which produced a total yield of398.45 g/1000g dry substrate with 39.84 per cent biological efficiency.