Effected on the Inoculum Potential of Two Kinds of Arbuscular Mycorrhizal Fungi Inoculum by the Propagation Conditions

Abstract:

In greenhouse condition，arbuscular mycorrhizal fungi Glomus intraradices(AM-1) and Glomus spp.(AM-2) were propagated in symbiosis with four host plant species，or with six kinds of substrates，in pot culture.The quality of the resultant inoculums under different test conditions were evaluated by calculating their inoculum potential(IP).Results indicated that white clover and tobacco were the suitable hosts for the propagation of AM-1 and AM-2，and the inoculums derived from them had higher IP，followed by maize and grain sorghum.With white clover as host，the vermiculite was the best substrate to producing the high quality inoculums in terms of IP，followed by the perlite.In contrast，grass charcoal showed negative effect on the propagation of AM-1 and AM-2.