Feasibility of commercial grade production of arbuscular mycorrhizal fungi inoculum under greenhouse conditions

Background and Objectives:The use of biofertilizers is very effective in soil fertility, food safety of consumers and environmental health. In this study, arbuscular mycorrhizal fungi were produced with two types of culture media in greenhouses. Methods and Material this experiment, seven species of mycorrhizal fungi were propagated in two types of pot substrates in the presence of corn plant in greenhouse conditions with a growth period of four months. Fungal species were Rhizophagus intraradices, Glomus versiforme, Rhizophagus irregularis, Scutellospora calospora, Claroideoglomus etunicatum and Funneliformis mosseae. Two types of pot substrates including A substrate: (cocopeat, vermiculite with a volume ratio of 1:1 and Humic acid with a concentration of 250 mg/L) and B substrate: cocopeat, vermiculite and compost (With a volume ratio of 1: 1: 0.4) were used for plant culture.ResultsThe results showed that the percentage of root colonization had no significant difference between the substrates type, but the simple effects of the fungi (P