Fig. 1. Mean values across two years (1995 and 1996) for leaf ABA concentration at Growth Stages 4 (ABA-4) and 5 (ABA-5), leaf temperature, and grain yield of maize populations H-P and L-P (derived from Os420 x IABO78) at three irrigation volumes (V0, V1, and V2 = irrigation volumes corresponding to 0, 60, and 120% of actual evapotranspiration after accounting for rainfall, respectively). Vertical bars indicate LSD (0.05) between populations at the same irrigation volume. H-P and L-P: populations selected for high- and low-leaf ABA concentration, respectively
