Uploaded with [URL=http://imageshack.us]ImageShack.us[/URL]

Fig. 3.7. Effect of photoperiod and E-gene alleles (number of dominant alleles, with
E1 counted as two dominant alleles) on the duration (growing-degree days; GDDs) of
the reproductive phase (R1–R7) of seven E-gene near-isogenic lines grown in
Lexington, KY, USA. The two photoperiods were ambient and ambient plus 3 h
day-length extension. The bars represent standard error of the means (adapted from
data in Kumudini et al., 2007).