Figure 3.

Effect of pectin powder or liquid suspension amendments on soybean nodulation by Bv PGPR strains at 35 DAP^# in the greenhouse and field trials. The gray-colored bar indicates the results of the field trial with a 0.1% (w/v) pectin liquid suspension, and the white-colored bar indicates greenhouse trials in which pectin was applied as a powder (P) or as a liquid suspension (L) amendment (* indicates significance at the 5% level relative to the Bv PGPR strains alone) (DAP^#—days after planting).