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Published in Crop Sci 8:163-164 (1968)
© 1968 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Influence of Alien Cytoplasms on Yield of Grain in Zea mays L.1

G. F. Sprague and J. H. McGahen2

Sixteen alien sources of maize and one of teosinte were converted to B14 genotype, retaining the alien Cytoplasm. In some comparisons teosinte cytoplasm appeared to contribute to lower grain yields. There was no convincing evidence of important differences among the normal maize cytoplasms tested.

Key Words: corn • maize • teosinte

1 Contribution from the Crops Research Division, Agricultural Research Service, U. S. Department of Agriculture, and the Pennsylvania Agricultural Experiment Station.

2 Research Agronomist, Crops Research Division, ARS, USDA, Beltsville, Md. 20705; and Instructor in Agronomy, Pennsylvania State University, University Park, Pa.

Received for publication August 14, 1967.




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