Effect of grain substrates on spawn development and their impact on yield and yield attributing characters of Pleurotus spp.

Abstract

An experiment was conducted to know the effect of different grains i.e. sorghum (Sorghum bicolor) and wheat (T. aestivum) on spawn development of different species of Pleurotus. On sorghum grains, PL-17-04 and PL-17-05 species of Pleurotus required significantly less (8.00 days) time for spawn development and at par with PL-17-03 and PL-17-12 (9.00 days), whereas more period taken by species PL-17-10 (14.00 days) for complete spawn development. On wheat grains, among the evaluated species PL-17-05 and PL-17-12 took significantly less (10 days) period for spawn development and all the grains were uniformly covered by white mycelial growth, however, the grains inoculated with species PL-17-07 and PL-17-09 required more (15 days) period for complete spawn development. The other species required 11-13 days for complete spawn development. On sorghum grains raised spawn, significantly less (7.00 days) period for complete spawn run was noticed in species PL-17-06, Pl-17-08, Pl-17-12 and it was significantly more (13.00 days) observed in species PL-17-05. Pin head initiation was significantly earlier (3.00 days) noticed in species PL-17-11 and PL-17-12 while, it was significantly more (10.0 days) in species PL-17-10. The species Pl-17-08 gave significantly bigger (8.38 cm) size of pileus and smallest (4.16 cm) noted in species PL-17-04. Significantly highest (3.8 cm) and shortest (0.88 cm) length of stipe was recorded in species PL-17-11 and PL- 17-12 respectively. The yield in different species of Pleurotus differs significantly with each other and maximum (668.0 gm) yield was obtained from species PL-17-11 while species PL-17-10 gave minimum (251.0 gm) yield of Pleurotus. On wheat grains raised spawn, PL-17-12 gave significantly faster (7.00 days) spawn run and it was significantly slower (16.00 days) noticed in species PL-17-07. Significantly earliest pinhead initiation was observed in species PL-17-11 and PL-17-12 (3.00 days) while, it was slowest (9.00 days) noted in species PL-17-10. Significantly biggest (8.76 cm) pileus was found in species PL-17-08 and smallest (4.26 cm) was recorded in species PL-17-10. The highest (3.8 cm) stipe length was recorded in species PL-17-11 and shortest (0.87 cm) was recorded in PL-17-12. Wheat grains raised spawn showed significant difference in yield with respect to different species of Pleurotus and significantly more (546.00 gm) yield was obtained from species PL-17-11 and it was significantly less (298.00 gm) found in species PL-17-10. The biological efficiency in different species of Pleurotus in accordance with that of yield on both grains used for spawns development.