Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Relationship of Soil Temperature and Cytokinin Production in Aspen Invasion.
Author William, Kristen R. ;
CORP Author New Mexico Univ., Albuquerque. Dept. of Biology.
Year Published 1972
Report Number OWRR-A-039-NMEX; 04978,; A-039-NMEX(2)
Stock Number PB-228 870
Additional Subjects Soil science ; Plant reproduction ; Forest trees ; Plant hormones ; Temperature measurement ; Thermodynamic properties ; Plant growth ; Plant ecology ; Plant physiology ; Growth regulators ; Soil water ; Regression analysis ; Theses ; Populus tremuloides ; Cytokinin ; Aspen invasion
Library Call Number Additional Info Location Last
NTIS  PB-228 870 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 42p
Quaking aspen (Populus tremuloides Michx.) primarily reproduce by suckering (i.e., root sprouting). Numerous environmental variables have been suggested as causes of this phenomenon, the most notable of which is soil temperature. Studies demonstrating thermal regulation of sprouting indicate the involvement of growth hormones. The only class of hormones to elicit a response similar to sprouting is the cytokinins. Other hormones, no doubt, function in this process as well (e.g., auxins). Regression analyses results indicated that in this subalpine meadow, 91.9% of the variation in soil moisture was accounted for by the silt percentage, and 66% of the variation in soil temperatures was accounted for by soil moisture.