Author(s):

Varsha Kerketta, CS Shukla, HK Singh and Anurag Kerketta

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.

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