TABLE 4.

Parameters of photosynthetic rate, stomatal conductance, CO2 concentration, transpiration velocity, water utilization efficiency, and morphological change in flag leavesa

Rhizobium test strainNet photosynthetic rate (μmol of CO2 m−2 s−1) ± SEStomatal conductance (μmol of H2O m−2 s−1) ± SECO2 concn (μmol mol−1) within intercellular leaf spaces ± SETranspiration velocity (μmol of H2O m−2 s−1) ± SEWater utilization efficiency (net photosynthetic rate/transpiration velocity) ± SEArea (cm2) of flag leaf (S = 0.75 × length × width) ± SELength/width of flag leaves ± SE
Ac-ORS57116.4223 ± 1.3903A0.2402 ± 0.0225A231.5825 ± 6.8692B4.5299 ± 0.3397A3.6264 ± 0.1715BC17.6437 ± 4.9422ABC14.8490 ± 3.0377D
Sm-102114.9850 ± 1.6388B0.2180 ± 0.0374AB221.3119 ± 11.5020B3.7224 ± 0.3272BC4.0222 ± 0.1922AB20.0250 ± 3.9161A16.1600 ± 1.6222CD
Sm-100213.7036 ± 0.7259B0.1941 ± 0.0173B225.3235 ± 19.0891B3.3079 ± 0.2186C4.1549 ± 0.3220A19.5789 ± 4.4695AB18.3021 ± 2.0242B
Rl-237013.8499 ± 0.3768B0.2408 ± 0.0403A261.7970 ± 15.5635A4.1640 ± 0.4180AB3.3584 ± 0.4119C18.9789 ± 4.4902AB17.6614 ± 2.6436BC
Mh-9313.8633 ± 0.7615B0.2187 ± 0.0169AB252.8500 ± 8.0899A4.3762 ± 0.2911AB3.1778 ± 0.2521CD16.7857 ± 3.4302BC16.4579 ± 2.6239CD
Control10.2302 ± 1.0323C0.1899 ± 0.0324B262.6345 ± 24.6411A3.8537 ± 0.9159BC2.7688 ± 0.6929D15.2362 ± 4.0063C21.1538 ± 2.1794A
  • a Data are represented as means per pot from three pot replicates, each containing 15 transplanted plants per strain. Values followed by a different superscript capital letter are significantly different at the 95% confidence level according to Duncan's multiple-range test.