New physiological race of Peronospora manshurica virulent to the gene Rpm in soybeans [Glycine max, Illinois].

Reference Report for GUA84013331

Title:	New physiological race of Peronospora manshurica virulent to the gene Rpm in soybeans [Glycine max, Illinois].
Authors:	Lim, S.M., Gray, L.E., Bernard, R.L., Nickell, C.D.
Source:	Plant Dis. 1984, 68(1):71-72
Abstract:	In 1981, a new race of the fungus virulent on the soyabean cultivar Union, which carries the gene Rpm for downy mildew resistance to all previously known races, occurred in the Ill. soyabean disease monitoring plots. The reaction of 18 soyabean cultivars was determined to the new race (33) as well as to race 2, which was collected at Urbana from cultivar Williams before downy mildew appeared on Union. Pridesoy, Palmetto, Kabott, Ogden and Acadian from a set of differential cultivars and 3 others (Fayette, Tracy, PI 88788) proved resistant to both races.

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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