FIG. 6.

Plant growth and nodulation of various legumes inoculated with NGR234 or NGRΩexoK (ΩexoK). At the time of harvest, the following data were acquired for each plant: total plant biomass (dry weight) (A), nodule dry weight (biomass of nodules and pseudonodules) (B), number of fully developed nodules (C), and number of pseudonodules (D). The data are means ± standard errors (n = 5 for V. unguiculata; n = 6 for A. procera and K. rubicunda; n = 7 for A. lebbeck, C. fasciculata, L. leucocephala, and S. tomentosa). The asterisks indicate statistically significant differences (P < 0.05, as determined by the Kruskal-Wallis test) between plants inoculated with NGR234 and NGRΩexoK. Abbreviations: Al, A. lebbeck 69 days postinoculation (Fig. 2F and 2G); Ap, A. procera 77 days postinoculation; Cf, C. fasciculata 69 days postinoculation; Kr, K. rubicunda 77 days postinoculation; Ll, L. leucocephala cv. Cunninghami 80 days postinoculation; St, S. tomentosa 101 days postinoculation; Vu, V. unguiculata 34 days postinoculation; DW, dry weight.