Integrated disease management of root rot (Macrophomina phaseolina) in Gloriosa superba

Abstract

Root rot disease caused by Macrophomina phaseolina is a destructive disease in Gloriosa superba. The effect of organic amendments, fungicides and biocontrol agents in the management of root rot disease of G. superba was evaluated under field conditions. From the results, it was found that the combination treatment of soil application of Trichoderma viride (2.5 kg ha(-1)) along with mahua cake (150 kg ha(-1)), dipping the tubers in Pseudomonas fluorescens 0.2% followed by spraying tebuconazole + trifloxystrobin 0.1% twice on 30 and 60 days after planting was effective in managing the root rot disease and increasing the seed yield. The plant growth and yield parameters viz., plant height, number of flowers plant(-1), number of pods plant(-1) and number of seeds pod(-1) were the maximum in the combination treatment of soil application of T. viride (2.5 kg ha(-1)) along with mahua cake (150 kg ha(-1)), dipping the tubers in P. fluorescens 0.2% followed by spraying tebuconazole + trifloxystrobin 0.1% twice on 30 and 60 days after planting.