VIEW ARTICLE

Longevity of Tobacco Ringspot Virus in Soybean Seed. F. A. Laviolette, Assistant Professor, Department of Botany and Plant Pathology, Purdue University, Lafayette, Indiana 47907; K. L. Athow, Professor of Plant Pathology, Department of Botany and Plant Pathology, Purdue University, Lafayette, Indiana 47907. Phytopathology 61:755. DOI: 10.1094/Phyto-61-755.

Soybean seed, cultivar Harosoy, harvested from tobacco ringspot virus-infected plants (TRSV), was stored at room temperature in the laboratory and at 1-2 C in a cold room. Germination of seed stored in the laboratory was reduced after 24 months and declined sharply after 42 months. Germination of seed stored in the cold room remained unchanged for 60 months as did the percentage of seed infected with TRSV under both storage conditions. The possibility of disseminating the virus in infected seed is mentioned.