D. B. Johnson¹, J.K. Norsworthy¹, Holden D. Bell¹, D. O. Stephenson², D. K. Miller³ and Jason A. Bond⁴, (1)University of Arkansas, Fayetteville, AR, (2)LSU AgCenter, Alexandria, LA, (3)LSU AgCenter, St. Joseph, LA, (4)Mississippi State University, Stoneville, MS