Abstract
In the present investigation, attempts were made to evaluate different substrate quantities to get higherbiological efficiency. Two strains of oyster mushroom (PL-19-05 and PL-19-06) were cultivated by usingdifferent quantities of wheat straw (2 kg, 3 kg, 4 kg and 5 kg). Among four substrate quantities, earlyspawn run (9.50 days and 11.00 days) and pin head initiation (19.25 days and 19.00 days) were observed at2 kg substrate quantity for PL-19-05 and PL-19-06 strains, respectively, followed by 3 kg, 4 kg and 5kgsubstrate quantities. Maximum yield was obtained at 5 kg substrate quantity for both strains. But biologicalefficiency was highest at 3 kg of substrate quantity which was 75.73% and 89.98 % for PL-19-05 and PL-19-06 strains, respectively, increase or decrease in quantity of substrate ensued in low biological efficiency.Based on the results, 3 kg substrate quantity is suggested as optimum substrate quantity forsub-humidconditions of Udaipur region to get higher biological efficiency and easy handling.
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