Fig. 4: Barley rhizosheath formation and grain yield are increased by C. culicis and P. polymyxa inoculation in the field (with Supplementary Fig. 8 and Supplementary Table 3).
From: Auxin-producing bacteria promote barley rhizosheath formation

a, b Rhizosheath formation of barley plants not inoculated (control) and co-inoculated with C. culicis and P. polymyxa (+C + P) in Sanming City (a, 118°29′E, 26°17′N) and Yangzhou City (b, 119°25′E, 32°23′N). c, d Grain yield of barley plants not inoculated (control) and co-inoculated with C. culicis and P. polymyxa (+C + P) in Sanming City (c) and Yangzhou City (d). Data are means ± SE (n = 6 plots). Asterisks indicate significant differences between treatments (*p < 0.05, **p < 0.01, ***p < 0.001) by two-sided Student’s t test. The exact p values are provided in the Source Data file.