EFFECT OF AGROINDUSTRIAL WASTES ON THE MY CELIUM GROWTH OF PLEUROTUS SP FLORIDA, IN UBERLANDIA, BRAZIL

The effect of different agroindustrial wastes in the region of Uberlan dia, MG, Brazil, on the mycelium growth of Pleurotus sp. ''Florida'' w as studied. The experiment was conducted from June 26 to July 30, 1993 . The average minimum and maximum temperatures registered were 21.4 an d 25.1 degrees C, respectively. The substrates used were agroindustria l wastes of cotton (Gossypium sp.), guariroba (Syagrus oleracea), maiz e (Zea sp.), soybean (Glycine sp.), and triturated sugar cane (Sacchar um sp.). The parameters studied were the average mycelium growth time and speed. The minor average mycelium growth time was registered in th e cotton and guariroba residues (ca. ten days). The cotton and guariro ba residues, as well as tritured sugar cane were the most favorable su bstrates for the increase in the mycelium growth speed. The colonizati on efficiency of the mycelium in these residues indicates their viabil ity for conversion in food (fruit bodies).