IT is known that the severity of the wilt disease of tomato plants caused by Fusarium oxysporum f. lycopersici can be reduced by treating plants with one of a variety of growth regulating substances, such as indolyl-3-acetic acid, 2,4-dichlorophenoxyacetic acid, α-naphthaleneacetic acid and 2,3,5-triiodobenzoic acid1. We have found that, when applied to tomato plants in suitable concentrations, these substances also reduce the severity of the wilt disease caused by Verticillium albo-atrum, Rke. and Berth. Concentrations that were effective in this way also considerably altered the growth-form of the plant.
Davis, D., and Dimond, A. E., Phytopath., 43, 137 (1953).
Witter, S. H., and Tolbert, N. E., Amer. J. Bot., 47, 560 (1960).
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SINHA, A., WOOD, R. Control of Verticillium Wilt of Tomato Plants with ‘Cycocel’ ((2-Chloroethyl)trimethylammonium Chloride). Nature 202, 824 (1964). https://doi.org/10.1038/202824a0
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