Table I. Measurements of photosynthetic rate, transpiration rate, and stomatal conductance.

Samples were collected from the mid region of wild-type and oul1 flag leaves. Data show means ± sd (n > 40) using the heteroscedastic t test to show significant differences (* P < 0.05, ** P < 0.01) compared with the wild type.

Leaf	Transpiration Rate	CO2 Stomatal Conductance	Photosynthetic Rate
	mmol m−2 s−1	mol m−2 s−1	μmol m−2 s−1
Wild type	2.90 ± 0.52	0.189 ± 0.022	11.47 ± 0.73
oul1	3.26 ± 0.33*	0.224 ± 0.020**	13.03 ± 0.77**