Performance of Three Soybean Varieties Inoculated with Soybean Mosaic Virus and Bean Pod Mottle Virus1

Abstract

Soybean mosaic virus (SMV) and bean pod mottle virus (BPMV) acted synergistically in soybeans, Glycine max (L.) Merr. The mean seed yield of ‘Amsoy,’ ‘Corsoy, and ‘Wayne’ soybeans was reduced 18% by infection with SMV, 10% by infection with BPMV, and 66% by infection with both SMV and BPMV. SMV caused mottling on 92% of the seed, whereas SMV plus BPMV caused mottling on 96% of the seed. Germination of seed from plants infected with SMV was reduced 22%, whereas germination of seeds from plants infected with both SMV and BPMV was reduced 29%. SMV was transmitted in 27% of the seed from plants infected with SMV alone, whereas the virus was transmitted in 39% of the seeds from plants infected with both viruses.