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. 2015 Oct 31;6:1207. doi: 10.3389/fmicb.2015.01207

FIGURE 3.

FIGURE 3

Plant growth promoting effect of C. botulinum strain 2301 and C. sporogenes strain 1739 on clover after 4 weeks of growth inside a phytochamber within a natural soil system (pot experiments) using commercially available soil composed of natural clay, peat, and sod peat containing abundant nutrients. (A) Inoculation with Rhizobium leguminosarum DSM 6039; (B) inoculation with C. botulinum strain 2301 and R. leguminosarum DSM 6039; (C) inoculation with C. sporogenes strain 1739 and R. leguminosarum DSM 6039.