corn variety trials, corn performance tests, hybird corn
Each year the Agronomy Department of the South Dakota Agricultural Experiment Station conducts corn yield trials on commercial hybrids and varieties in order to make available impartial information on the relative performance of the entries included when they are grown at certain selected places in the state. Information includes yielding ability, maturity requirements and other characteristics. Entries in each test are those hybrids which have enjoyed the greatest popularity on the basis of sales' volume during the previous year for the area represented by that test and well known open-pollinated varieties which have been used in that area. The areas represented by the tests are those into which the state might be divided on the basis of soil type, elevation, rainfall and length of growing season.
South Dakota State College of Agriculture and Mechanic Arts, Agricultural Experiment Station
Shank, D. B.; Hume, A. N.; Puhr, L. F.; and Grafius, J. E., "1947 Corn Performance Tests, South Dakota" (1948). Agricultural Experiment Station Circulars. 68.