Fig. 3. Impact of alternating temperatures on symptom expression in soybean induced by Soybean mosaic virus. (a) Soybean genotype V262 (Rsv1-n) at 33°C day/20°C night 7 days after inoculation (DAI); 1 = healthy plants, 2 = inoculated with G1. (b) Soybean genotype V262 (Rsv1-n) at 33°C day/20°C night 14 DAI; 1 = healthy plants, 2 = inoculated with G1. (c) Soybean genotype V94-3971 (Rsv1) at 33°C day/20°C night 7 DAI; 1 = healthy plants, 2 = inoculated with G7. (d) Soybean genotype V94-3971 (Rsv1) at 33°C day/20°C night 14 DAI; 1 = healthy plants, 2 = inoculated with G7. (e) Soybean genotype V262 (Rsv1-n) at 35°C day/20°C night 8 DAI; 1 = healthy plants, 2 = inoculated with G1. (f) Soybean genotype V94-3971 (Rsv1) at 35°C day/20°C night 8 DAI; 1 = healthy plants, 2 = inoculated with G7.