Crop Science Journal of Natural Resources and Life Sciences Education
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Published in Crop Sci 8:563-567 (1968)
© 1968 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Heritability Estimates of Protein Content and Certain Quality and Agronomic Properties in Bread Wheats (Triticum aestvum, L.)1

J. R. Lofgren, K. F. Finney, E. G. Heyne, L. C. Bolte, R. C. Hoseney and M. D. Shogren2

Four crosses between two soft red winter wheats, ‘Atlas 50’ and ‘Atlas 66,’ and two hard red winter wheats, ‘Triumph’ and ‘Kaw,’ were studied for heritability and correlation values among various agronomic and quality characters. Flour yield, 1000-kernel weight, and kernels per 30 ml were more heritable than test weight, protein content, and mixogram mixing time. The parent cultivars were separated by two to four genes for flour yield, three to four genes for protein content, and at least two genes for mixing time. There were significant correlations between 7 pairs of characters among all combinations of 13 characters studied. Thirteen Kaw x Atlas 50 and Atlas 50 x Kaw progenies contained 1 to 3% more flour protein than Kaw controls, and possessed promising hard wheat characters for milling, baking, and dough mixing properties.

Key Words: flour yield • test weight • correlation • mixing time • loaf volume

1 Contribution No. 1014, Department of Agronomy, and No. 632, Department of Grain Science and Industry, Kansas Agricultural Experiment Station, Kansas State University, Manhattan 66502, in cooperation with the Crops Research Division, Agricultural Research Service, U.S. Department of Agriculture. Portion of a thesis submitted by the senior author in partial fulfillment of the requirements for the Ph.D. degree, Kansas State University, Manhattan. This research was supported in part by funds provided by the Kansas Wheat Commission, Hutchinson, Kansas.

2 Former Agricultural Research Assistant, Kansas State University and Crops Research Division, ARS, USDA (now Assistant Professor, University of Minnesota, Crookston, Minn.); Research Chemist, Crops Research Division, ARS, USDA; Professor and Plant Breeder, Kansas State University; Cereal Technologist; Research Chemist; and Research Cereal Technologist, Crops Research Division, ARS, USDA; respectively, Manhattan, Kansas.

Received for publication January 11, 1968.




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