1. Division of Plant Sciences; University of Missouri; Columbia MO 65211 USA
2. Institutes of Agricultural Science and Technology Development; Yangzhou University; Yangzhou 225009 China
3. Institute of Industrial Crops, Jiangsu Academy of Agricultural Sciences; Nanjing 210014 China
4. Division of Plant Sciences; University of Missouri Fisher Delta Research Center; Portageville MO 63873 USA
5. Department of Crop, Soil, and Environmental Sciences; University of Arkansas; Fayetteville AR 72701 USA
6. Delta Research and Extension Center, Department of Plant and Soil Sciences; Mississippi State University; Stoneville MS 38776 USA
7. Red River Research Station; Louisiana State University Agricultural Center; Baton Rouge LA 70803 USA