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Published online 1 April 1960
Published in Agron J 52:220-222 (1960)
© 1960 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Relative Yields of First (Apical) and Second Ears of Semi-Prolific Southern Corn Hybrids1

Loyal F. Bauman2

Synopsis: Most of the yield variations resulted from differences in second-ear yield when a significant number of second ears were produced. First-ear yield was relatively unaffected by environment unless the crop was so poor that few second ears developed. Variations in second-ear yields resulted primarily from differences in number rather than size. The plants tended to develop a fullsized first ear, and any additional yield came largely from second ears.

1 Cooperative investigations at Tifton, Georgia, of the Crops Research Division, ARS, USDA, and the University of Georgia College of Agriculture, Agricultural Experiment Station. Published with the approval of the Director as Journal Series Paper No. 75.

2 Research Agronomist, Crops Research Division, ARS, USDA.

Received for publication August 7, 1959.


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