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Performance of Corn Synthetics in Advanced Generations of Synthesis and after Two Cycles of Recurrent Selection¹

Synopsis: Yields of 4 second cycle synthetics averaged 96% of hybrid U.S. 13 as check compared with 82% for the first cycle populations. Moisture at harvest averaged 105% and 103% of check for the second and first cycle synthetics. This improved performance indicates that the method might benefit areas where production of corn hybrids is not yet feasible, or where a stop-gap procedure is needed during development of suitable hybrids.

² Agronomist and Associate Agronomist, respectively.

Received for publication January 18, 1956.

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