Degree Type

Dissertation

Date of Award

1970

Degree Name

Doctor of Philosophy

Department

Agronomy

DOI

https://doi.org/10.31274/rtd-180813-17237

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/

Copyright Owner

John Pearson Widdowson

Language

en

Proquest ID

AAI7114273

File Format

application/pdf

File Size

289 pages

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