Date of Award:

5-1967

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Plants, Soils, and Climate

Department name when degree awarded

Plant Nutrition and Biochemistry

Committee Chair(s)

Keith R. Allred

Committee

Keith R. Allred

Committee

Herman H. Wiebe

Committee

Orson S. Cannon

Abstract

The infestation of twelve selected clones of alfalfa by the alfalfa seed chalcid was measured. The free sterol content of the stems, leaves, flowers and pods of these clones was determined. A check was made to see if there was a correlation between the sterol content and the chalcid infestation.

Differences were found among the clones in the sterol content for each plant part. There were also significant differences in percent chalcid infestation in the 12 clones. Duncan's New Multiple Range Test pointed out which clones differed Significantly from the others.

Using linear regression analysis, the correlation coefficient of the comparison between the sterol content and the chalcid infestation was obtained.

There was a significant negative correlation between the sterol content of the flower and the percent chalcid infestation. No significant correlation was found between the sterol content of the stems, leaves or pods and the percent chalcid infestation.

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