Figure 1.
Soil inoculation and plant biomass.
Shoot biomass of Triticum aestivum (mean ± SE) on sterilized soil without inoculum or with 9% field soil inoculum from 4 different farms in the conditioning phase. The asterisks indicate significant differences (P<0.05) between non-inoculated and inoculated soil.
Table 1.
Linear model testing effect of inoculation and farm on shoot biomass of Triticum aestivum in the conditioning phase.
Figure 2.
Competition interacts with inoculation effects.
Shoot biomass of Triticum aestivum (mean ± SE) growing in soil with or without weeds. A growing in sterilized soil, B growing in inoculated soil.
Figure 3.
Correlation between crop and weeds depend on soil inoculation.
Correlation between T. aestivum shoot biomass and weeds shoot biomass within the same pot on sterilized A non-inoculated soil and B inoculated soil in the feedback phase. Spearman rank correlation coefficients and P-values are shown in the graphs. Filled symbols indicate the average T. aestivum shoot biomass in the absence of weeds; n = 32 for non-inoculated soils and n = 48 for inoculated soils.
Table 2.
Linear model testing effect of inoculation, competition and farm on shoot biomass of Triticum aestivum in the feedback phase.