Genetic Resistance to Fusarium solani in Pioneer Brand 9451 Soybean

摘要

Sudden death syndrome (SDS) is a fungal disease of soybean found in the southern Midwest. Sudden death syndrome was first reported in Arkansas in 1971 by H. J. Walters and by the mid 1980's had become recognized as an economically important disease inIllinois, Indiana, Missouri, Mississippi, and Kentucky (Hershman et al., 1990) A pathogenic strain of Fusarium solani has been identified as the cause of the leaf necrosis and cortical rot associated with SDS (Roy et al., 1989; Rupe, 1989). A 1985 studyin Arkansas showed SDS resistant or tolerant cultivars to have a substantial yield advantage over cultivars rated as susceptible (Hirrel, 1986). Identifying and incorporating sources of SDS resistance has become an important priority of both public andprivate soybean breeding programs.