Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 15:235-238 (1975)
© 1975 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Inheritance of Seed and Seedling Color in Sweetclover1

H. J. Gorz, J. E. Specht and F. A. Haskins2

Eight seed colors, conditioned by two independent pairs of genes, were identified in sweetclover (Melilotus alba Desr.). The seed colors resulted from all combinations of two embryo and four seed coat phenotypes. Only four of the seed colors were recoverable in true-breeding form. Conventional genetic tests revealed that Y/y alleles determined the absence or presence, respectively, of green pigmentation in both the embryo and seed coat of fully mature seeds. Absence of green was dominant in both seed parts. The C/c alleles conditioned the presence or absence, respectively, of brownish pigmentation in the seed coat and red pigmentation in seedlings with the presence of pigmentation being dominant.

Key Words: Melilotus alba Desr. • Embryo color • Seed coat color

1 Contribution from the ARS, USDA, and the Nebr. Agr. Exp. Stn., Lincoln. Published as paper no. 3751, journal series, Nebr. Agr. Exp. Stn. under project 12–27.

2 Research Geneticist, ARS, USDA; graduate assistant in agron.; and Bert Rodgers Professor of Agronomy, U. of Nebr., Lincoln, NE 68503, respectively.

Received for publication August 12, 1974.


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