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. 2020 Sep 11;51(4):1977–1986. doi: 10.1007/s42770-020-00375-1

Table 2.

Net photosynthesis, gas exchanges, and leaf temperature of NA5858RR drought-sensitive genotype inoculated with different Bradyrhizobium strains, submitted to moderate water restriction (during 10 days) and severe (during 7 days), between 45 and 62 days after emergence

Net photosynthetic rates, A (μmol CO2 m−2 s−1)
Moderate water restriction Severe water restriction
Strain Dry Wet Average Dry Wet Average
SEMIA 587 17.1 19.4 18.2 ab 0.22 aB 16.1 abA 8.13
SEMIA 5019 17.0 17.7 17.2 b 0.07 aB 15.3 bA 7.68
SEMIA 5080 19.3 20.3 19.8 a − 0.23 aB 16.8 aA 8.30
Average 17.8 A 19.1 A 0.02 16.1
Transpiration rates, E (mmol H2O m−2 s−1)
Moderate water restriction Severe water restriction
Strain Dry Wet Average Dry Wet Average
SEMIA 587 2.99 3.36 3.18 a 0.02 3.82 1.92 a
SEMIA 5019 3.08 3.32 3.20 a 0.09 3.46 1.78 a
SEMIA 5080 3.47 3.57 3.52 a 0.15 4.00 2.10 a
Average 3.18 A 3.42 A 0.09 B 3.76 A
Stomatal conductance, gs (mol H2O m−2 s−1)
Moderate water restriction Severe water restriction
Strain Dry Wet Average Dry Wet Average
SEMIA 587 0.281 0.443 0.362 a 0.000 0.378 0.19 a
SEMIA 5019 0.289 0.382 0.335 a 0.003 0.399 0.20 a
SEMIA 5080 0.290 0.455 0.372 a 0.003 0.390 0.20 a
Average 0.287 B 0.427 A 0.002 B 0.389 A
Intercellular CO2 concentration, Ci (μmol CO2 mol−1)
Moderate water restriction Severe water restriction
Strain Dry Wet Average Dry Wet Average
SEMIA 587 273 330 301 a 283 bA 302 aA 293
SEMIA 5019 271 315 293 a 387 aA 279 aB 334
SEMIA 5080 283 309 296 a 231 cB 279 aA 255
Average 276 B 318 A 300 287
Temperature of leaves (°C)
Moderate water restriction Severe water restriction
Strain Dry Wet Average Dry Wet Average
SEMIA 587 29.7 28.6 29.2 a 34.2 29.8 32.0 a
SEMIA 5019 30.8 28.9 29.8 a 34.4 29.9 32.2 a
SEMIA 5080 29.8 28.8 29.3 a 34.5 29.7 32.1 a
Average 30.1 A 28.8 B 34.3 A 29.8 B

Means followed by the same letter, capital in lines and small in columns, do not differ from one another (Tukey, p < 0.05) (n = 6). Comparison within each factor level denotes significant interaction; comparison in the average of one factor denotes isolated effect