Suitability of various lignocellulosic substrates for cultivation of Pleurotus sajor-caju (Oyster Mushroom)

Abstract

The objective of this study was to look into the possibility of using the different lignocellulosic biomasses for Pleurotus sajor-caju (oyster mushroom) cultivation. The mushroom species was cultivated on nine types of substrates; namely three acacia species, three types of straws, coffee husk and saw dust obtained from two types of timber species. Thirty types of treatments (pure and mixed) were used to grow the mushroom and significantly differing results were obtained. Yield data (biological efficiency, spawn running period (SRP) and days to first harvest (DFH) of the mushroom were measured. The shortest SPR and DFH were from the pure chopped barley straw (BS) followed by pure wheat straw (WS) and Acacia drepanolobium (DC), respectively. The maximum period was from the mixed sawdust of Aningeria adolfi-friedericii (AS) and Cupressus lusitanica (CS) in the ratio of 4:6. The least mushroom biological efficiency was also from the ASCS4 (4:6) mixture. No any fruit body appeared on the pure C. lustanica sawdust (CS) and the mixture of ASCS in a ratio of 3:7. On the other hand, the maximum biological efficiency of the mushroom was obtained from DC followed by BS, WS and SC, respectively. In conclusion, mushroom biological efficiencies of the pure A. drepanolobium and A. seyal substrates were found to be better than those of the mixed ones. These biological efficiencies were also found to be better than those of the agri-residues.

Keywords: Pleuroteus sajor caju, Acacia species, coffee husk, sawdust, straws, bush control