EFFECT OF DIFFERENT SUBSTRATES RATIO ON THE GROWTH AND YIELD OF OYSTER MUSHROOM

Abstract

The experiment was carried out at the Tissue Culture Laboratory and Culture House of Mushroom Development Institute, Savar, Dhaka, during the period from January 2014 to June 2014. The experiment consisted of two varieties, viz. V 1 (Pleurotus ostreatus) and V (Pleurotus djamor) and nine different Substrates ratio S 1 2 (25% straw + 10% paddy grain (mother culture) + 65% sawdust), S ( 35% straw + 10% paddy grain (mother culture) + 55% Sawdust), S 3 2 ( 45% Straw + 10% paddy grain ( mother culture) + 45% Sawdust), S (55% Straw + 10% paddy grain (mother culture ) + 35% Sawdust), S ( 65% Straw + 10% paddy grain (mother culture) + 25% Sawdust), S 6 (

5 75% Straw + 10% paddy grain (mother culture) + 15% Sawdust), S ( 85% Straw + 10% paddy grain (mother culture) + 5% Sawdust), S 8 7 (90% Straw + 10% paddy grain (mother culture)), S (90% Sawdust + 10% paddy grain (mother culture)). The experiment was laid out in Completely Randomized Design with three replications. The maximum yield (66.50 g), the highest number of fruiting body (16.53), number of effective fruiting body (12.11) were observed in V 9

Significant variation was found in all parameter due to the effect of substrates ratio. The highest number of fruiting body (15.25), number of effective fruting body (12.11) and highest yield (63.25) were recorded in S The combination between different variety and different substrates ratio was found significant variation on the yield. The maximum yield (90.00 g) was produced by V 3. and the minimum yield (21.00 g) was produced by V 2 S 6