How pure is your seed? In other words, is it almost entirely seed of one specific variety or has mixing with other varieties occurred over time?
Mixing can occur in a number of ways. Perhaps volunteer plants from a previous growing season popped up in the crop. Maybe a variety mix-up occurred when the grain was binned. Maybe augers or truck boxes or semi hoppers weren’t entirely cleaned out. Pedigreed seed growers have procedures and checks in place to prevent those types of contamination and to ensure they meet the strict requirements of the Seeds Regulations.
After several generations of using the same seed, the percentage of any contamination present would likely be amplified. If height and maturity are similar, you might not notice the lack of varietal purity in the field, but end users might notice.
