title: Temperature effect on growth rates of Eriophorum vaginatum roots.
abstract: Root growth rates of the sedge Eriophorum vaginatum L. were studied under controlled environmental conditions. The air temperature was maintained constant at 15°C while the root temperatures varied in 5°C intervals between 2° and 37° C (12° C excluded). Root growth rates of 1.2 mm d-1at 2°, 20.4 mm d-1at 32° C and 10.1 mm d-1at 37° C were recorded. A Q10of 3.2 was calculated for the temperature range from 7° to 27° C. Root growth rates at temperatures above 17° C declined after one week of growth. The degree of decline was proportional to the applied root temperature. Depletion of available nonstructural carbohydrate was the probable cause for this decline.
authors.affiliation: Botany Department, San Diego State University, 921820058, San Diego, CA, USA.
authors.forename: Barhara A
authors.initials: BA
authors.lastname: Ellis
authors.affiliation: Botany Department, San Diego State University, 921820058, San Diego, CA, USA.
authors.forename: Jochen
authors.initials: J
authors.lastname: Kummerow