Impact Palm Date Fibers (Fibrillum) and Sawdust extract on Mycelial Growth Rate of Four Species of Pleurotus

Abstract

Fiveextracts of plant substrates including palm date fiber (fibrillum), wheat straw, sawdust and their mixtures were investigated to growfour species of oyster mushrooms: Pleurotus ostreatus (grey strain), Pleurotus ostreatus (white strain), Pleurotus cornucopiae (bright yellow strain) and Pleurotus salmoneostramineus (pink stain). In significant difference (P>0.05), the best mycelial growth rate was 14.73 mm day-1 by P. salmoneostramineus on solid medium of F1 (Solid medium of wheat straw 100%) followed 14.13 mm day-1 by Pleurotus ostreatus (grey) on solid medium of F5 (Solid medium of date palm fiber 100%) after four days from growth. Seven days were less time to cover whole plate by mycelia of P. ostreatus (grey strain) and P. ostreatus (white strain) on F5medium