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Thesis (M.S.)—University of Nebraska—Lincoln, 1954. Department of Agronomy.


Copyright 1954, the author. Used by permission.


The investigations reported in this thesis were an effort to gain some information pertaining to this problem for conditions of testing encountered in Nebraska. Two important factors studied which are encountered in the evaluation of corn hybrids were: (A) the effect of the type of yield adjustment used for missing hills at the Nebraska station and (B) the value of single-hill plots versus 2x5 hill plots.

The data collected from two experiments involving 169 test crosses of corn in the year 1952 and 150 test crosses in 1953, grown at two locations, were used to study the effect of making adjustment for missing hills by the application of Jenkins’ formula. One location represented conditions of adequate moisture supply while the other location was one in which moisture was a limiting factor in crop production. The 1952 experiments were analyzed by the covariance method.

Advisor: J. H. Lonnquist