Author(s):

JP Kannaujia, Gopal Singh, Ramji Singh, Kamal Khilari, SK Sachan and Yogesh Prashad

Abstract: Present study was use of different growth regulators for spawn improvement and production of Pleurotus spp. (P. djamor and P. sajor-caju). Growth regulators such as GA, IAA and NAA used @ 10 and 20 ppm in seven treatments with three replication. In case of P. djamor, maximum spawn growth (90.00 mm) was recorded in GA 20 ppm and minimum spawn growth (74.00 mm) was recorded control. While in case of P. sajor-caju, maximum spawn growth (90.00 mm) was recorded in GA 20 ppm. However minimum spawn growth (67.00 mm) was recorded in control. In case of P. djamor maximum growth rate (6.00 mm/day) was observed in GA 20 ppm and minimum growth rate (4.93 mm/day) was recorded in control. While in P. sajor-caju maximum growth rate (6.00 mm/day) was recorded in GA 20 ppm. However minimum growth rate (4.46 mm/day) was recorded in control. In case of P. djamor maximum yield was observed in GA @ 20 ppm (514.33g/kg of dry substrates with 51.33% biological efficiency.). In case of P. sajor-caju maximum yield was observed in GA @ 20 ppm (700g/kg of dry substrates with 70.00% biological efficiency.).

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