Date of Award:
5-1977
Document Type:
Thesis
Degree Name:
Master of Science (MS)
Department:
Wildland Resources
Department name when degree awarded
Range Science
Committee Chair(s)
Martyn M. Caldwell
Committee
Martyn M. Caldwell
Committee
Roger Wyse
Committee
George Welkie
Committee
Herman Wiebe
Abstract
Root respiratory response of mature Atriplex confertifolia plants growing in established communities was measured during two growing seasons using freshly excised root segments and gas chromatography techniques. Respiratory response at fixed test temperatures changed significantly during the growing season, and this pattern of respiratory adjustment varied for root segments located at different depths in the soil profile. Respiration measured at a constant test temperature was highest during early sumner, and declined to minimum values in late summer and fall. Root segments taken from the top 30 cm of the soil profile displayed peak activity several weeks before root segments from greater depths reached maximum activity. The significance of these patterns of respiration is discussed in relation to the carbon balance of Atriplex plants and the uses of respiratory energy within the root system.
Checksum
acdf6f44975204fbe6234580394cc295
Recommended Citation
Holthausen, Richard S., "Seasonal Course of Root Respiration in Atriplex confertifolia" (1977). All Graduate Theses and Dissertations, Spring 1920 to Summer 2023. 6327.
https://digitalcommons.usu.edu/etd/6327
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