A natural epiphytotic of soybean mosaic virus (SMV) occurred at the Harrow Station in 1976. The disease, which was noted in early July, reduced plant growth. Advanced lines from 'Corsoy' x 'Chippewa 64' were being tested in the field in relation to their flavonol glycoside classification. Plants were rated for severity of leaf symptoms and seeds were rated for mottling.
Buzzell, R. I.
"Research Notes : Tolerance/resistance to soybean mosaic virus,"
Soybean Genetics Newsletter: Vol. 10
, Article 5.
Available at: https://lib.dr.iastate.edu/soybeangenetics/vol10/iss1/5