Effect of fungicides on mycorrhizal colonization and growth of onion |
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Authors: | A Manjunath D J Bagyaraj |
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Institution: | (1) Department of Agricultural Microbiology, University of Agricultural Sciences G.K.V.K. Campus, 560 065 Bangalore, India |
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Abstract: | Summary Effect of five fungicidesviz Agrosan. Benlate, Captan, Ceresan and Plantavax on VA mycorrhizal symbiosis in onion was studied in a phosphorus deficient, sandy loam soil. Two levels of fungicides (2.5 g and 25 g/g soil) were applied to the soil. Agrosan, Benlate and Plantavax applied at 25 g/g soil reduced the mycorrhizal colonization significantly. All the fungicides, except Captan, applied at lower concentration reduced plant growth and P uptake. Captan applied at the lower concentration had no effect on mycorrhizal colonization, plant growth and P uptake, and when applied at higher concentration had least effect on plant growth compared to other fungicides.Contribution of U.A.S. Research project DR/AMB-1. |
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Keywords: | Fungicides Onion VA mycorrhiza |
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