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Iowa Crop Variety Test Publications Guide

This guide provides direct links and pointers for locating variety trials (or performance tests) for specific field crops in Iowa, both past and present. It also provides locations and call numbers for the ISU Library.

Sorghum Variety Trials in Iowa

Early Sorghum tests in Iowa:

1913-1916, see Knobbs, Wallace J. Cooperative Experiments.  M.S. thesis.  Iowa State College, 1922.

1921-1938, see Thurman, Floyd.  Field Crop Tests on Iowa Farms. M.S. thesis. Iowa State College, 1940.


The Iowa Sorghum Performance Test was created in 1958 and led by R.E. Atkins, J.G. Wheat, and C.D. Hutchcroft to test combine type grain sorghum variety yields.  Also referred to as Sorghum Performance Trials, these tests were conducted as part of the Iowa Crop Improvement Association research in cooperation with Iowa State University.

1963-1989AG series as AG-16-*.  Call number: S451 I8 A4x - Archives


Your Librarian

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Lorrie Pellack
Head, Research & Instruction Services Dept.
150c Parks Library
Ames, IA 50011-2140
Phone: 515-294-5569