Figure 4 | Scientific Reports

Figure 4

From: High C3 photosynthetic capacity and high intrinsic water use efficiency underlies the high productivity of the bioenergy grass Arundo donax

Figure 4

A vs ci response for A. donax.

A′; the supply function of the estimated limitation placed on A by the stomata and leaf boundary layer; A′′ the supply function in the absence of any limitation to diffusion of CO2 from the atmosphere to the site of carboxylation. Observations were measured at 21% oxygen on fully emerged leaves at a I of 1500 μmol m−2 s−1, leaf temperature of 25 °C and VPD of 0.96 (0.01) kPa and gs 0.404 (0.016) mol m−2 s−1. (Values are means and standard errors, for 5 different plants).

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