Management of root-rot of mungbean caused by Macrophomina phaseolina through seed treatment with fungicides

Authors

  • SHUMAILA SHAHID and MUJEEBUR RAHMAN KHAN*

Keywords:

Disease management, fungicides, Macrophomina phaseolina, Vigna radiata, pathogen population

Abstract

An experiment was conducted to determine the effect of seed treatment with five fungicides viz., carbendazim, captan, thiram, mancozeb and vitavax against root-rot of mungbean caused by Macrophomina phaseolina under pot condition. The results of the present study proved that all the fungicides reduced the root-rot severity and subsequently improved the growth and yield of infected mungbean plants to a greater or lesser extent. Plants grown in inoculated pots without fungicides treatment exhibited significant (P≤0.05) decline in the plant growth (32-45%) and yield (36%) due to greater root-rot severity. The relative efficacy of fungicides proved carbendazim to be the most effective fungicide in reducing root-rot severity (44%) and increasing plant growth (25-33%) and yield (27%). Captan was next in effectiveness and caused 38% reduction in rootrot severity with 24% increase in yield (P≤0.05). Mancozeb was least effective which caused lowest decrease in disease severity (27%) and minimum increase in plant growth (11-13%) and yield (11%). Total chlorophyll, total carotenoid and leghaemoglobin content as well as nodulation in roots was also significantly improved due to fungicide treatments (P0.05). Similarly, pathogen population in soil was 45-60% lower in the pots treated with the fungicides than untreated pots, of which, lowest was recorded with carbendazim.

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Issue

Vol. 69 No. 2 (2016): Indian Phytopathology

Section

Research Articles

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How to Cite

MUJEEBUR RAHMAN KHAN*, S. S. and. (2016). Management of root-rot of mungbean caused by Macrophomina phaseolina through seed treatment with fungicides. Indian Phytopathology, 69(2), 128-136. http://epubs.icar.org.in/ejournal/index.php/IPPJ/article/view/58370