Sudden Death Syndrome (SDS) is a serious disease affecting soybean cultivars in Brazil being too difficult to control it. The causal agent is Fusarium solani f. sp. glycines. The disease affects large soybean growing areas in the United States, Brazil and Argentina. Yield losses ranged from 20 to 80% according to cultivar and weather conditions at early plant development stage when pathogen begins the infection process. Aiming to stablish yield losses due to the disease, two experiments were carried out in a field with natural incidence of SDS during summer 2000/2001. SDS infection on soybean cultivars can affect number of pods per plant, number of seeds per pod and yield.
Fusarium solani f. sp. glycines; Glycine max; yield
