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Fig. 3. Predawn to sunset trends in mean total leaf water potential measured with a pressure chamber (
W(PB)) of expanded sunlit spring wheat leaves for 50% day after emergence (DAE) and development stages given for 5 d during the (a–e) 1993 and (f–j) 1994 growing seasons. Symbols in legend, sources of variance, and results from ANOVA same as described in Fig. 1. Each mean datum was derived from three to four subsamples for four replications (i.e., means based on n = 12 or n = 16). Vertical bars are 1 SE of replication means (i.e., n = 4). The above illustration was derived from measurements from as many as 3392 leaves.
