effects of two arbuscular mycorrhizal fungi, glomus mussae and glomus intraradices on pea root rot disease caused by fusarium solani f. sp. pisi under greenhouse conditions

in the present study, the effects of two arbuscular mycorrhizal fungi, glomus mosseae andglomus intraradices, alone and in combination, on the growth parameters, chlorophyll and the root-rot disease of pea (pisum sativum) caused by fusarium solani f.sp. pisi were evaluated under greenhouse conditions. eight different treatments in four replications were designed in randomized blocks. compared with the non-treated controls all am treatments increased plant growth parameters and chlorophyll of treated plants. based on the results individual inoculation with g. mosseae was more effective than g. intraradices and dual (g. intraradices + g. mosseae) inoculations. inoculation of f. solani f. sp. pisi without g. mosseae and g. intraradices treatments caused a significant reduction in plant growth parameters and chlorophyll of treated plants (at 1%) over the uninoculated control. in the presence of g. mosseae, g. intraradices and dual inoculation of g. mosseae plus g. intraradices, root colonization by f. solani f. sp. pisi was decreased but individual inoculation with g. mosseae was more effective than other treatments. inoculation of g. mosseae and g. intraradices caused a significant increase in plant growth parameters and chlorophyll of pathogen inoculated plants compared with inoculated pea plants with f. solani f. sp. pisi. based on the results, application of g. mosseae found to be the best for reducing the root rot disease severity and improving plant growth parameters of pea.