In-vitro evaluation of fungicides, bioagents and botanicals against Macrophomina phaseolina (Tassi) Goid the causal agent of dry root rot in chickpea.

摘要

Various fungicides, bioagents and botanicals were tested in vitro against Macrophomina phaseolina which causes dry root rot in chickpea. Among the systemic fungicides, cent per cent inhibition was recorded in hexaconazole, carbendazim, difenoconazole and propiconazole at 50 ppm. While, in thiophanate methyl at 500 ppm. Whereas, in contact fungicides and combi-products cent per cent inhibition was observed in mancozeb, carboxin 37.5+thiram 37.5 and carbendazim 12 per cent+mancozeb 63 per cent WP at 250 ppm. Among bioagents tested, maximum inhibition was recorded in Trichoderma harzianum (Th-55) (81.48%) followed by Bacillus subtilis (75.85) and T. viride (TV-27) (74.07) compared to control. Out of ten botanicals tested, only NSKE was effective in inhibiting the mycelial growth 91.72 per cent at 5 to 15 per cent concentration.