Relationship between field and greenhouse reactions of soybean to Fusarium solani.

Reference Report for IND93020791

Title:	Relationship between field and greenhouse reactions of soybean to Fusarium solani.
Authors:	Stephens, P.A., Nickell, C.D., Moots, C.K., Lim, S.M.
Source:	Plant Dis. 1993, 77(2):163-166
Abstract:	Field and greenhouse tests were conducted to determine the relationship between field and greenhouse reactions of soybean (Glycine max (L.) Merr.) to Fusarium solani (Mart.) Appel and Wollenw. emend. Synd. and Hans., the causal organism of sudden death syndrome (SDS). Seedlings of 12 soybean cultivars, ranging from maturity group II to late-maturity group IV, were inoculated in the greenhouse with oat grain infested with F. solani. The same cultivars were evaluated for disease reaction in F. solani-infested microplots at Urbana, IL(USA), and at infested field sites in central and southern Illinois. SDS leaf symptom severity for Field-grown plants at the R6 growth stage and greenhouse leaf symptom severity at about 3 wk after inoculation were highly correlated (r = 0.60-0.91). Thus, inoculation of soybean seedlings with the oat grain culture in the greenhouse is a reliable method for evaluating reactions of soybeans to F. solani. In performance trials during 1990 and 1991 at four field sites infested with F. solani no relationship was found between SDS severity and the agronomic traits yield, maturity, plant height, lodging, seed weight, and seed quality.

Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA

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