Fig. 2.
The relationships (A) between photosynthetic rate (An) and total leaf conductance (gtot), (B) between An and stomatal conductance (gs), (C) between An and mesophyll conductance (gm), and (D) between transpiration efficiency (TE) and the ratio of mesophyll conductance to stomatal conductance (gm/gs). An, gs, and TE were obtained under 400 µmol mol−1 CO2, 1000–1500 µmol m−2 s−1 light intensity, and 25 °C. gm was calculated based on the NRH-A method (Yin and Struik, 2009). AR, aerobic rice; CG14, O. glaberrima; LR, lowland rice; UR, upland rice; W, wheat. Linear regressions were fitted for overall data and for each genotype group. The significance of each correlation is shown by asterisks: *P<0.05, **P<0.01, ***P<0.001.