Factors to Improve Detection of <i>Alfalfa mosaic virus</i> in Soybean

Fig. 1. Phenotypic response of soybean cultivar Williams82 (A) at 30 days postinoculation (dpi) to five Alfalfa mosaic virus (AMV) strains. Plants were rub-inoculated with infectious sap containing viruses and the inoculated plants were maintained in a growth chamber at 25°C with a photoperiod of 16 h. It should be noted that variation in phenotype of disease induced by AMV in soybean precludes reliable detection of the virus solely based on symptomatology.

Image from Plant Health Progress article:
Factors to Improve Detection of Alfalfa mosaic virus in Soybean