Growth and production of Pleurotus ostreatus improvement strains on coconut wastes

Abstract

The experiment was conducted to investigate the viability of the production of the hybrids (BF24 and EF58) and parental (POSB) strains of the edible mushroom Pleurotus ostreatus in substrate based sawdust coconut bark supplemented with bran. The following treatments were done : T1 – 100%  SCC; T2 – 95% SCC, 5% rice bran; T3 – 95%  SCC, 5% wheat bran; T4 – 80% SCC,  10% rice bran, 10% wheat bran; T5 – 70% SCC, 15% rice bran, 15% wheat bran; T6 – 60% SCC, 20% rice bran, 20% wheat bran. A factorial experimental design was used (3 strains x 6 treatments), with four replications by treatment.  Parameters for analyses were:  growth and micelial vigor, primordium formation and harvest (days), yield and the carbon:nitrogen relation.. The supplementation of sawdust of coconut bark with wheat and/or rice bran reduced the carbon: nitrogen relation and favored growth rate, vigor, period of formation of primordium, harvest and yield in alls strains tested.