Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 9:35-37 (1969)
© 1969 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Effect of Plant Density Upon Soft Wheat Quality Characteristics 1

W. T. Yamazaki, L. W. Briggle and H. D. Petersen2

Soft wheat breeders can evaluate varieties or breeding lines for AWRC values, pearling index, flour yield, and flour protein content when grown at plant densities within the range of commonly used population levels. Such plant densities range from approximately one plant per 5.1 cm (2 inches) to two plants per 2.54 cm (1 inch). Each of the four quality characters measured, however, is significantly influenced by very low plant density — one plant per 20.3 cm (8 inches). Analysis for each character measured indicates that varieties are not affected differentially by plant density.

Key Words: Triticum aestivum L. em Thell. (astivum group) • Plant Density • Population level • Micro quality tests

1 Contribution of the Crops Research Division and Biometrical Services, Agricultural Research Service, U. S. Department of Agriculture, and Department of Agronomy, Ohio Agricultural Research and Development Center, Journal Article No. 56–67.

2 Chemist, Crops Research Division (Ohio Agricultural Research and Development Center, Wooster 44691); Research Agronomist, Crops Research Division; and Biometrician, Biometrical Services (Plant Industry Station, Beltsville, Md. 20705), ARS, USDA.

Received for publication May 24, 1968.




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Copyright © 1969 by the Crop Science Society of America.