Figure 3

Variation in the number of nodes on the main stem among photoperiod-insensitive soybean accessions. Bars indicate the number of nodes produced under natural-daylength conditions with a maximum of 16.5 h in Sapporo, Japan (blue) and the increase (red) or decrease (open) in number of nodes under artificially induced 20-hour long-daylength conditions. Pink indicates the number of nodes produced by determinate dt1 accessions under natural-daylength conditions. The designations e1, e3, and e4 refer to all of the dysfunctional alleles at these respective loci.