Effect of Different Strains of Arbuscular Mycorrhizal Fungi (AMF) on Macro and Micro Nutrient uptake in Micropropagated Chrysanthemum Plantlets

摘要

Effect of different Arbuscular Mycorrhizal Fungi (AMF) on uptake of macro and micronutri-ents by in vitro raised plantlets of chrysanthemum cv. Yellow Bangla has been studied. Four AMF strains namely, Acaulospora laevis, Acau-lospora scorbiculata, Glomus fascicutatum and mixed AMF strains (Nutrilink~R) were used to screen the suitable AMF strain for micropropa-gated chrysanthemum plantlets. These plantlets showed maximum accumulation of N, P and Ca both in shoots and roots at 90 DAI. Maximum K and Mgaccumulation was observed at 60 DAI with the same fungal strain. The predominant effect of mixed AMF (Nutrilink~R) was also observed in uptake of Fe and Mn at 90 DAI in both shoot and root samples. However, maximum accumulation of Zn was observed in shoots of Glomus fascicutatum inoculated plantlets. The experiments revealed significant increase of nutrient uptake in both shoot and roots in the plant-lets inoculated with mixed AMF strains (Nutrilink~R) followed by Glomus fasclculatum inoculated microplants.