Figure 3.

Phytotoxicity effects of (±)-botryodiplodin in cultured leaf discs from three different soybean genotypes, DT97-4290 (▲), which was released as a charcoal rot disease resistant genotype, Saline (♦) and DS97-84-1 (■). The phytotoxic response is shown at (A) 24 h, (B) 48 h, (C) 72 h and (D) 96 h. The phytotoxicity rating scale is described in Figure 2. Saline was significantly (p < 0.05, multiple regression) more susceptible to the phytotoxic effects of (±)-botryodiplodin than DS97-84-1 and DT97-4290 at each time point. Results are the mean of three replicates.