We have just started to receive the varieties that we will use for our research this year, and it looks like seed size is smaller than I expected. For example, I received two different varieties from the same company with seed size of 3,800 seeds per pound as compared to 2,500 seeds per pound in a normal year. Seed size varies among varieties but also depends on the environment where the seed is grown. Therefore, we will see some variability in seed size this year even within the same variety.
Iowa State University
Pedersen, Palle, "Soybean seed size is smaller this year" (2004). Integrated Crop Management News. 1576.
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