Fig. 5.

Greenhouse evaluation of the effect of glyphosate on Asian soybean rust (Phakopsora pachyrhizi) in GR soybean genotypes 48 (A) and 57 (B). The glyphosate treatments were as follows: no spray; 1.5× preinoculation (1.26 kg ae/ha 3 DBI); 3.0× preinoculation (2.52 kg ae/ha 3 DBI); 1.5× pre- and postinoculation (1.26 kg ae/ha 3 DBI and at rust appearance); and 1.5× postinoculation (1.26 kg ae/ha at rust appearance). At 14 and 21 DAI, the number of sporulating lesions was counted within two 1.2-cm-diameter circles on either side of the mid-rib of the center leaflet on the first trifoliate for each plant (n = 5). Lesion numbers were analyzed by ANOVA with treatment and soybean lines as main effects. Within each genotype and sampling time, data points labeled with the same letter are not significantly different at P ≤ 0.05.