Olson, P. J.Bull, C.P.Hayes, H.K.2017-02-132017-02-131918-02Olson, P.J.; Bull, C.P.; Hayes, H.K. Ear Type Selection and Yield in Corn. 1918. Saint Paul, Minn.: University of Minnesota. Agricultural Experiment Station. Bulletin 174, pages 3-60https://hdl.handle.net/11299/184097This archival publication may not reflect current scientific knowledge or recommendations. Current information available from University of Minnesota Agricultural Experiment Station: http://www.maes.umn.edu/enNewsletter or Bulletin