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Published in Crop Sci 11:790-791 (1971)
© 1971 Crop Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Protease Levels in "High" Versus "Low" Grain Protein Wheats and Their Association with the Production of Amino Acids, Tryptophan, and IAA During Early Growth1

S. C. Rao and L. I. Croy2

Protease levels in the juvenile wheat (Triticum aestivum L.) plant were greater for a "high" grain protein variety (NB #65317, a selection from a cross between ‘Atlas 66’ and ‘Comanche’) than for a "low" protein variety (‘Triumph 64’, C. I. 12132) during early seedling growth. Also, higher amounts of AA, tryptophan, and IAA were found in NB #65317. The data suggest that "high" grain protein varieties will exhibit higher protease, AA, tryptophan, and IAA concentrations in the vegetative parts of the plant than will a "low" protein variety.

Key Words: Triticum aestivum L.

1 Journal Article 2099 of the Agricultural Experiment Station, Oklahoma State University, Stillwater, Okla.

2 Graduate Research Assistant and Assistant Professor, respectively, Department of Agronomy, Oklahoma State University, Stillwater, Okla. 74074.

Received for publication June 8, 1971.




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