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W. R. Akeson

United States Department of Agriculture

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Publication

Featured researches published by W. R. Akeson.

Science | 1969

Sweetclover-Weevil Feeding Deterrent B: Isolation and Identification

W. R. Akeson; Francis A. Haskins; H. J. Gorz

Deterrent B, a compound apparently involved in the resistance of Melilotus infesta to the sweetclover weevil Sitona cylindricollis, has been isolated from leaves by a combination of preparative paper chromatography, sublimation, and crystallization. The compound has been identified as ammonium nitrate. Isolated deterrent B and ammonium nitrate have identical feeding deterrent activities. Although the deterrent principle was isolated as the ammonium salt, nitrate ion is probably responsible for the deterrent activity in vivo.

Crop Science | 1963

Effect of Genotype and Growth Stage on Distribution of Melilotic Acid, o-Coumaric Acid, and Coumarinic Acid in Melilotus alba Desr. 1

W. R. Akeson; Herman J. Gorz; Francis A. Haskins

Journal of Economic Entomology | 1967

A Bioassay for Detecting Compounds Which Stimulate or Deter Feeding by the Sweetclover Weevil

W. R. Akeson; G. R. Manglitz; H. J. Gorz; Francis A. Haskins

Journal of Environmental Quality | 1976

Interactions Between Insects and Chemical Components of Sweetclover

G. R. Manglitz; Herman J. Gorz; Francis A. Haskins; W. R. Akeson; G. L. Beland

Crop Science | 1971

Influence of Iron Supply on Peroxidase Activity and Peroxidase Isozymes in Corn ( Zea mays )

R. L. Ulmer; Francis A. Haskins; W. R. Akeson

Journal of Economic Entomology | 1970

Influence of Plant Maturity and Plant Part on Nitrate Content of the Sweetclover Weevil-Resistant Species Melilotus infesta

G. L. Beland; W. R. Akeson; G. R. Manglitz

Crop Science | 1970

Sweetclover Weevil Feeding Stimulants: Variation in Levels of Glucose, Fructose, and Sucrose in Melilotus Leaves

W. R. Akeson; H. J. Gorz; Francis A. Haskins

Crop Science | 1969

Sweetclover Weevil Feeding Stimulants: Isolation and Identification of Glucose, Fructose, and Sucrose

W. R. Akeson; H. J. Gorz; Francis A. Haskins

Journal of Economic Entomology | 1968

A Water-Soluble Factor in Melilotus officinalis Leaves Which Stimulates Feeding by the Adult Sweetclover Weevil

W. R. Akeson; Herman J. Gorz; Francis A. Haskins; G. R. Manglitz

Crop Science | 1969

Influence of Developmental Stage of Melilotus infesta Leaves on Resistance to Feeding by the Sweetclover Weevil

W. R. Akeson; G. L. Beland; Francis A. Haskins; H. J. Gorz

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Francis A. Haskins

University of Nebraska–Lincoln

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H. J. Gorz

United States Department of Agriculture

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Herman J. Gorz

University of Nebraska–Lincoln

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