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This article in CS

  1. Vol. 14 No. 6, p. 888-890
    Received: Apr 19, 1974

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Seed Transmission of Viruses in Soybean1

  1. James W. Demski and
  2. H. B. Harris2



Varietal differences, time of inoculation, and time of planting were evaluated for effects on the transmission of tobacco ringspot virus (TRSV) through soybean [Glycine max (L.) Merr.] seed at Experiment, Georgia. Also, evaluations were made on the transmissibility of peanut mottle virus, cowpea chlorotic mottle virus, and soybean mosaic virus through seed.

All 10 soybean varieties tested had a high percentage seed transmission of TRSV with no evidence of varietal differences. Seed transmission of TRSV was high and seed germination reduced when inoculation occurred before flowering. Seed transmission of TRSV was less than 1% from soybeans planted in late August and seed germination increased. A marked increase in seedling vigor was noted in progeny from late August plantings. Soybean mosaic virus was transmitted through the seed at a low rate (lye or less depending on variety). Peanut mottle virus and cowpea chlorotic mottle virus were not transmitted through the seed.

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