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Published online 1 July 1971
Published in Agron J 63:566-569 (1971)
© 1971 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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Boron and Manganese Effects on Protein, Oil Content, and Fatty Acid Composition of Cottonseed1

O. E. Anderson and R. E. Worthington2

Field experiments were conducted to study the effect of Mn and B on the oil and protein content and the fatty acid composition of cotton-seed produced on soils where supplements of these elements have increased yields of lint cotton. Manganese and B, in separate experiments, were applied to the foliage or to the soil at three growth stages. With only one exception, neither time nor method of applying B or Mn to cotton influenced the oil or prolein content, or the distribution of fatty acids within the seed oil. In the single exception, a small but significant i.ncrease in oil content occurred when B was applied to the foliage at the 5- to 10-leaf stage. There were negative correlations (P = .01) between seed protein and oil for both Mn and B. Seed oil and protein content varied among locations due to factors other than available soil Mn or B.

Key Words: Micronutrients • Seed quality

1 Journal Series Paper No. 874 University of Georgia, College of Agriculture Experiment Stations, Georgia Station, Experiment, Ga. Partial support of this research by the Tennessee Corp., Atlanta, Ga., and U. S. Borax and Chemical Corp., Los Angeles, Calif., is gratefully acknowledged.

2 Professor of Agronomy and Assistant Professor of Food Science, respectively, Univ. of Georgia, Coll. of Agr. Exp. Sta., Georgia Station, Experiment, Georgia 30212.

Received for publication September 3, 1970.




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Copyright © 1971 by the American Society of Agronomy.