Fig. 4From: Chlorophyll fluorescence imaging captures photochemical efficiency of grain sorghum (Sorghum bicolor) in a field settingLine graphs of chlorophyll content from leaf samples taken on the 1st, 4, and 7th day after leaves were treated with the herbicide DCMU. Symbols indicate the mean for each Treatment × Day (N = 8) and the whiskers indicate standard error. Letters in each graph indicate Tukey assignments for each treatment within a day after treatment. Same letters indicate no significant differenceBack to article page