Leon M. Pultz

Document Type

Thesis - Open Access

Award Date


Degree Name

Master of Science (MS)

Department / School

Plant Pathology

First Advisor

Arthur T. Evans


Chemicals have long been in use as mean of eliminating or abbreviating the rest period of various plant organs. Usually, however, they have been in the hands of workers who were interested only in forcing the resting parts into growth and not in determining the physiological effect of the chemicals upon them. Since Appleman (1) presents a very comprehensive review of the earlier literature pertaining to the subject, it will not be again presented here. More recently Denny (4, 5) has given now impetus to this work by demonstrating that ethylene chlorhydrin and various other chemicals will greatly shorten the dormancy period of potato tubers. If, as is suggested by Appleman (1), the shortening of the rest period of potato tubers is due to conditions which accelerate respiration, then the treatment with ethylene chlorhydrin which shortens the rest period, should also causes increased respiratory activity. The following study was undertaken, with these facts in mind, to determine the effect of treatment with ethylene chlorhydrin upon the rate of respiration of dormant potato tubers.

Library of Congress Subject Headings

Plants, Effect of gases on
Plants -- Respiration




South Dakota State University