Effects of <i>Rht12</i> on the spike characters and fertility of different groups of the F_2:3 lines in the autumn-sown (AS) and spring-sown (SS) experiments.

*<p>Fertility is estimated as the ratio of fertility florets to total floret per spike of the main shoot spike. All data are means ±SD of each genotype. Data of the two parents were not considered in the statistical significance testing. Different letters within columns indicate statistically significant differences (<i>P</i><0.05).