Drought tolerance of sugarcane propagules is improved when origin material faces water deficit
Fig 4
Photochemistry of sugarcane propagules during and after water deficit.
The potential quantum efficiency of photosystem II (A), the apparent electron transport rate estimated (B), ETR/A ratio (C), and the non-photochemical quenching of fluorescence (D) in sugarcane plants grown under well-watered conditions (W/W and D/W) or subjected to water deficit (W/D and D/D). The propagules were obtained from plants previously exposed to water deficit (D/W and D/D) or grown under well-watered conditions (W/W and W/D). Measurements were done during the water deficit (stress) and recovery (gray area) periods, as shown in Fig 1. Each histogram is the mean value + s.d. (n = 4). Different letters mean statistical differences among treatments (p<0.05).