Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 10:525-527 (1970)
© 1970 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Inheritance of Stearic Acid in the Seed Oil of Safflower (Carthamus tinctorius L.)1

S. L. Ladd and P. F. Knowles2

Differences in percentages of stearic acid in the seed oil of the safflower (Carthamus tinctorius L.) introductions, Israel 55-46 (high), Russia 60-110 (high) and the cultivar ‘US-10’ (low), were determined principally by alleles at a single locus. Seeds of genotypes StSt, Stst, and stst have oils with respective stearic acid contents of 1.0 to 2.5, 2.5 to 5.0, and 5.0 to 12.0%. Increases in the percentage of stearic acid were accompanied by decreases in the relative amounts of linoleic acid, oleic acid, or both linoleic and oleic acids. Palmitic acid was usually reduced slightly as stearic acid increased.

Key Words: Oleic acid • Linoleic acid • Palmitic acid

1 Contribution from the Deparlment of Agronomy and Range Science, University of California, Davis 95616. Part of a Ph.D. thesis by the senior author.

2 Assistant Chief, Forensic Toxicology Branch, USAF Epidemiological Laboratory, Lackland Air Force Base, Texas, and Professor of Agronomy, University of California, Davis. The authors are grateful to S. R. Bartholomew who analyzed F3 materials.

Received for publication February 27, 1970.


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[Abstract] [Full Text]


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