Top-root ratios of inbred and hybrid maize 
By: By D. Boyd Shank ...
Published: 1943
Place of publication: [n.p
Language: eng
Number of pages: 987
Subjects: Corn.; Roots (Botany); Heredity.
Notes: "Literature cited": p. 987.
Part of thesis (Ph. D.)--Iowa State College of Agriculture and Mechanic Arts. 1941. Doctoral thesis no. 660.
"Iowa Agricultural Experiment Station, Ames Iowa. Journal paper J-1128. Project 250."
"Reprinted from Journal of the American Society of Agronomy, vil. 35, no. 11, November, 1943."