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| Test weight is a meaSure of density and the ability to fill up a volume, ex. Bin, truck ect. Test weight can have effect on yield because higher test weight weighs more per bushel obviously increasing grain sold. But......some hybrids with a lower test weight will out yield higher test weight corn by simply producing more bushels.
Sometimes high TW is associated with high grain yield and low TW is associated with low grain yield. In fact, there is a poor relationship between TW and yield. The same TW can exist across a wide range of yield environments and genetics. Similarly, there can be a wide range of TW values across the same high or low yielding environment. That said, high TW corn can result in a grower being paid for more “bushels.” For example, there are more bushels (those 56 lb. blocks) of 58 lb.
TW corn in a truck or bin than the same truck or bin with 54 lb. TW corn
In other words.....if I have the same amount of corn in 2 bins from different varieties each, the variety with the highest test weight will yield better. You want high test weight corn in a bin always | |
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Test weight question
