RELATIONSHIP BETWEEN THE CONCENTRATION OF SOYBEAN MOSAIC VIRUS IN SOYBEAN AND SEED TRANSMISSION RATE OF THE VIRUS

The concentration of soybean mosaic virus in soybean leaves,immature seeds,flowers and non-coated mature seeds of 6 soybean cnltivars were tested by local lesion assay or ELISA,and the relationships between virus concentrations in these parts and seed transmission rates of the virus were analysed.Results showed that the concentration of SMV in soybean leaves and immature seeds varied significantly with soybean cultivars and the days after inoculation. No difference of SMV concentrations in flowers among six...