Based on the number of days after planting when 50% of the plants on the plot had reached reproductive stage (R1).
Source:
SOY:001
Comment
Similar to the trait Flowering date but synonomy can not be determined based on different definitions of time. Similar to First flower (Fflr). Reproductive stage (Reprod) differs from First flower (Fflr) in that Reprod refers to the developmental state of a plot not of an individual plant like Fflr.