EFFET DE LINOCULUM MYCORHIZIEN DE SYNTHESE ISSU DES SOUCHES FONGIQUES ENDOGENES DES SOLS DAZAGUIE, SUD-EST DE LA COTE DIVOIRE, SUR LES PARAMETRES DE CROISSANCE DUBANANIER PLANTAIN (MUSA PARADISIACA) SOUS ABRI DE CULTURE

Effect of synthetic mycorrhizal inoculum from endogenous fungal strains of Azaguie soils on the growth parameters of plantain (Musa paradisiaca) under crop shelter Symbiotic microorganisms of the soil, in this case mycorrhizal fungi, are a major asset for plants in general, and crops in particular. Indeed, scientific innovations in recent decades suggest that mycorrhizal fungi are likely to protect plants from biotic and abiotic stress and increase agricultural productivity. The aim of this study was to assess the mycorrhizal potential of banana.Plantain was inoculated with endogenous fungal strains derived from host plants grown on Azaguie soil, in a controlled environment in trays (1 m*50 cm) containing soil and root samples taken in the field and on which sorghum, maize and cowpea seeds had been sown respectively. After eight weeks of host plant culture, densities, spore diversity, intensity and root infection were assessed. These inocula were then tested on banana plants in a greenhouse nursery, also for eight weeks. The results showed the presence of viable spores in the culture soil capable of infecting host plants. Similarly, a sporulation density of 20.48 spores. g1 of soil was determined, revealing maize and sorghum as specific host plants to stimulate spore production compared with cowpea. However, the frequency of mycorrhization intensity revealed no significant differences between the trapping systems. The plantain inoculation test was positive, with an average degree of dependence of no more than 15%. The use of mycorrhizae as biofertilisers could therefore be a promising way of improving plantain productivity in the Azaguie area and the rest of Cote dIvoire.