EFFECT OF ORGANIC SUBSTRATES ON THE INVASION PARAMETERS OF THE CULTIVATION OF THREE TYPES OF OYSTER MUSHROOMS IN CÔTE D’IVOIRE

Abstract

Accelerated deforestation of the vegetation cover combined with climate change is influencing the seasonal availability of carpophores in different regions of the country. This study aims to improve mushroom production in Côte d'Ivoire through the use of different types of organic substrates. The methodology consisted in using three types of oyster mushroom (Pleurotus cornucopiae, Pleurotus ostreatus and Pleurotus citrinopileatus) subjected to different types of organic substrates (sawdust and banana leaves) in a split-plot system in which three treatments (Sb, Sc and Fb) compared with a control (Sa) were stored in a dark chamber until the culture bags were fully invaded, in order to determine the percentage, height, speed and volume of substrates colonized. The results showed that the different oyster mushroom species significantly influenced all invasion parameters (P=0.00***), unlike the different substrates (P=0.59) considered. Similarly, species-substrate interaction had a significant effect on the evolution of the different oyster mushroom species. This study shows that the evolution of the invasion parameters of oyster mushroom cultivation, particularly that of Pleurotus cornucopiae, had a good mycelial development on the various substrates and can therefore be integrated into the production circuit in Côte d'Ivoire.