Effect of soil temperature on infection of soybean roots by sclerotia-forming isolates of Colletotrichum truncatum.

Reference Report for IND20378018

Title:	Effect of soil temperature on infection of soybean roots by sclerotia-forming isolates of Colletotrichum truncatum.
Authors:	Khan, M., Sinclair, J.B.
Source:	Plant Dis. 1991, 75(12):1282-1285
Abstract:	Soybean (Glycin max) cvs. A. K. (Kansas), Boone, and Williams 82 were grown in sand infested with sclerotia from two sclerotia-forming isolates of Colletotrichum truncatum in soil temperature tanks at 20, 25, 30, or 35 C and at greenhouse ambient temperature (21-28 C). Root and hypocotyl infection were recorded on all cultivars at all temperatures. Lesion size and number generally increased with an increase in soil temperature up to 30 C and then declined. Williams 82 had the highest disease rating, Boone the lowest, and A. K. (Kansas) was intermediate over all temperatures

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