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- Published as Paper No. 8362, Journal Series, Nebraska Agricultural Research Division, Lincoln, from Projects NE‐114 (Nebraska) and MS‐104 (Mississippi). Supported in part by the International Sorghum/Millet Collaborative Research Support Program (INTSORMIL CRSP) through U.S. Agency for International Development (USAID) grant AID/DAN‐1254‐G‐55–5565–00.