Fig. 2. Tukey box plots for 22 F3 soybean families (n = 8) from the cross OT89-5 x OT94-47 and the two parents for days to first flower under a 20-h photoperiod produced by incandescent lamps alone plotted according to the maturity of the F2 plant, from earliest to latest. The box shows the 25th and 75th percentile with the light bar in the box showing the 50th percentile and the bold bar showing the family mean; the error bars show the 10th and 90th percentile; the dashed line shows the mid-parent value. The families developed from F2 plants designated early maturing are prefixed with "a," those late maturing are prefixed with "b," and the intermediate maturing do not have a prefix.
