EFFECT OF DIFFERENT SAWDUST ON THE GROWTH, YIELD AND PROXIMATE COMPOSITION OF EAR MUSHROOM (Aurkularia auricula)

Abstract

Five different types of sawdust viz: l'cak tree (Th'cto,za grandis) sawdust. Mahogany tree (Swietenia maliagoni) sawdust. Mango tree (/t'1ang fèra in(lica) sawdust. Rain tree (AlbiTh saman) sawdust and mixture of all four supplemented sawdust (leak. Mahogany. Mango and Rain tree) with 30% wheat bran and 1% lime as basal substrates were selected for studied their effect on growth. yield and nutritional composition of ear mushroom. Data on growth. yield and nutrient composition and mineral content were recorded and signifleant variation was found for different studied parameter. ilie highest myeelium running rate (0.88 cm) and the highest average number of primordial per packet (74.34) were recorded in mixed sawdust. The highest average number(115.5) and weight (3.67 g) of individual fruiting body were obtained from mixed sawdust. £ The lowest average weight of individual fruiting body (2.76 g) was found in mango sawdust. The highest average length of stalk (2.70 cm) was found in mixed sawdust. the highest biological yield (276.21 g/paeket) and the lowest biological yield (248.57 g/packet) were found in mixed arid rain tree sawdust respectively. The highest benefit cost ratio (5.00) was found from mango sawdust and the lowest benelit-cost ratio (4.01) was obtained from rain tree sawdust. In case of proximate analysis the highest protein content (24.54%) was recorded from mahogany tree sawdust. The highest carbohydrate (38.52%) was observed from mango sawdust. ihe highest amount of phosphorus (1.53%) was obtained from mixed, again the lowest phosphorus content (1.29%) was found in rain tree. Among the treatments mixed sawdust with 30% wheat bran was found contributed significantly growth, yield, nutrient composition and mineral content of ear mushroom (Auriczilaria auncula).