Date of Award:
5-1979
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Plants, Soils, and Climate
Department name when degree awarded
Plant Science
Committee Chair(s)
David R. Walker
Committee
David R. Walker
Committee
Herman H. Wiebe
Committee
LaMar A. Anderson
Abstract
The influence of different concentrations of a film-forming antitranspirant (Wilt-Pruf) on the transpiration rate of young apple trees (M106) was studied. One-year-old Mailing 106 trees were potted in 10.2 em (4 inch) metal pots. The plants were placed in a controlled environmental chamber during the study period. Sufficient reductions in water loss resulted with all concentrations of Wilt-Pruf with a 63 percent reduction at the highest concentration. Phytotoxicity was not observed though the higher concentrations imparted a sticky film to plants and they appeared to be lighter green at the end of the test. The effect of Wilt-Pruf on four-year old apple trees (Golden Delicious) was conducted in August 1977 at Utah State University Experimental Farm in Farmington, Utah. The resistance to water vapor diffusion from the leaves was increased on both Wilt-Pruf treated irrigated and unirrigated trees, and water balance was improved, increasing leaf and stern water potential. The improved water balance of treated apple trees resulted in fruit size increase. The higher concentration of antitranspirant in both irrigated and unirrigated apple trees resulted in a higher leaf temperature than the irrigated control.
Checksum
057e9b86fa837553489e7f47e56e49fd
Recommended Citation
Nammah, Hassan A., "The Effect of Wilt-Pruf, Antitranspirant on Reducing Water Loss of Apple Trees" (1979). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 3422.
https://digitalcommons.usu.edu/etd/3422
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