A system for post-harvest or at-harvest determination of pre-harvest strength of a corn stalk wherein the system comprises a stalk stump cutter structured and operable to cut a discarded post-harvest stalk stump to provide a substantially flat and even cross-sectional surface of the stalk stump, an imaging device structured and operable to acquire image data of the stalk stump cross-section, and a computer based data processing system structured and operable to analyze the image data and determine a pre-harvest stalk strength of the corresponding stalk.
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