Effect on different concentration of zinc and cadmium on mycorrhizal colonization in soil in finger millet (Eluesine Cocacana L.) Krishna Deeksha*, Sachan H.K. 1Department of Crop Production, School of Agricultural Sciences, College of Agriculture, Fisheries & Forestry, Fiji National University, Republic of Fiji *e-mail: dikshakrishna@gmail.com
Online published on 28 December, 2017. Abstract A pot culture experiment was carried out to studythe effects of arbuscular mycorrhizal fungi on finger millet mycorrhizal colonization, Zinc and Cadmium up take under increasing Zn and Cd levels using a factorial design with 4×4 treatments with four levels of strains of mycorrhizal fungi viz. uninoculted control (M0), in oculation with Gigaspora ACP-1(M1), Glomus ACP-2(M2)and Scutellospora ACP-2(M3) and four levels of heavy metal each ofzinc sul phate at the rates of 0, 150, 300 and 450 mg Zn kg−1 soil and Cdat the rates of 0, 25, 50 and 100 mg Cd Kg−1 soil to find out the effects of in oculation with mycorrhizal strains under doses of Zn and Cdon finger millet (Eluesine coracana L.) at 30, 60 and 105 days af ter sow ing (DAS). In ab sence of Zn and Cd all the three fungal strains were equally effective is promoting plant growth, nutrients up take and root colonization. When Zn and Cd were added to soil, the plant growth, up take and mycorrhizal root colonization of nutrients decreased over control. Glomus ACP-2 (M2 strain) was found to be the most tolerant strain to the in creasing levels of Zn and Cd addition to soil over the other two strains. Top Keywords Arbuscular mycorrhizal fungi, zinc and Cadmium toxicity, finger millet, soil pollution. Top |