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(A). Inoculated with L(G7 1608-3237). (B). Inoculated with L(G7 1608-3237)(G1054R). Trifoliate leaves are shown underneath. Photos were taken 14 days post inoculation. rsv, Williams 82 (carrying no resistance gene); Rsv1, PI96983; Rsv3, L29; Rsv4, V94-5152; +, positive (ELISA and RT-PCR); –, negative (ELISA and RT-PCR).
