Evaluation location: , United States
Seeds were sown and plants were grown in 15-cm-diameter plastic pots (approx. eight plants per pot) in the greenhouse with temperature controlled at 25 +/-3 C and a 14-h photoperiod. Each germplasm was grown in three pots for each treatment (each inoculated SMV strain). Within each treatment, one pot was used as an uninoculated control and the plants in the other two pots were inoculated at the unifoliolate leaf stage with one of the seven SMV strains. Inoculated plants were monitored for symptom expression for 4 wk after inoculation.