Fig. 2. The number of barren plants as affected by (A) hybrids in each N treatment, (B) N x plant population density (PPD), (C) PPD alone, (D) PPD x hybrids, (E) N x PPD for Pioneer 3893, and (F) N x PPD for Maizex LF850 RR in 2003 growing season. The vertical bar is the LSD_0.05 value.