Fig. 5

Physiological parameters of maize OsMYB55 transgenic plants subjected to drought stress in greenhouse conditions. Eight-week-old wild type (WT) and OsMYB55 lines (P3, P4, P5) grown in greenhouse were subjected to water withholding for five days and then re-watered as described in methods. a Reduction in water potential of stressed plants compared to well-watered controls. b Difference of leaf temperature in stressed and control plants. c Reduction of the normalized difference vegetation index (NDVI) values in stressed plants compared to controls. All measurements were performed in the upper, fully expanded leaves. Data shown are for 0, 1 and 4 days of no irrigation and 1 day after recovery. Bars represent mean values ± SE (n = 15). P-values (Student’s t-test) are indicated: **P < 0.005 and *P < 0.05