In-vitro evaluation of systemic fungicides against Fusarium oxysporum f. sp. lycopersici and their compatibility with bioagents
2019
An in-vitro study was carried out for the screening of commonly used commercially available potential systemic fungicides viz. Topsin M and Carbendazim against Fusarium oxysporum F. sp. lycopersici at three different concentrations (50 ppm, 100 ppm and 200 ppm) which revealed that Carbendazim at 200 ppm has the strongest anti-mycotic potential followed by Carbendazim at 100 ppm showing 96.36 and 94.72 percent inhibition respectively. The in-vitro compatibility tests of Trichoderma harzianum with systemic fungicides indicated that lesser concentration of the two systemic fungicides had lesser inhibitory effect as compared to higher concentration. Carbendazim @ 50 ppm proved out to be most compatible showing minimum percent inhibition (72.59). The two potential bacterial antagonists viz. Bacillus subtilis and Pseudomonas fluorescenswere compatible with different concentrations (50 ppm, 100 ppm, 200 ppm) of Carbendazim and Topsin M.
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